Priapism কী?
Priapism হলো যৌন উত্তেজনা/ইচ্ছা ছাড়া বা যৌন কাজ শেষ হওয়ার পরও দীর্ঘসময় penile erection থাকা। Clinically সবচেয়ে গুরুত্বপূর্ণ cut-off: ৪ ঘণ্টা বা তার বেশি erection = emergency, বিশেষ করে যদি ব্যথাযুক্ত ও penis শক্ত থাকে। Priapism প্রধানত ৩ ধরনের: ischemic/low-flow, non-ischemic/high-flow, এবং stuttering/recurrent priapism। Ischemic priapism-এ penis-এর corpora cavernosa-তে রক্ত আটকে যায়, oxygen কমে যায়, acidosis হয়—এটি compartment syndrome-এর মতো emergency।
1. Types: clinically বুঝার shortcut
| Type | Core meaning | Pain | Penis rigidity | Emergency? |
| Ischemic / Low-flow | রক্ত আটকে গেছে, oxygen কম | বেশি | corpora খুব hard, glans তুলনামূলক soft | Yes—urgent |
| Non-ischemic / High-flow | trauma/fistula থেকে অতিরিক্ত arterial flow | সাধারণত কম/নেই | partially rigid | usually not immediate emergency |
| Stuttering / Recurrent | বারবার painful erection, নিজে নিজে কমে যায় | থাকে | ischemic-type | acute episode >4h হলে emergency |
- Must causes — কারণগুলো
Cause of Priapism:-
১. রক্তের রোগ / Hematological cause
- Sickle cell disease — সবচেয়ে গুরুত্বপূর্ণ কারণগুলোর একটি। রক্ত জমাট/আটকে গিয়ে penis-এ blood flow বন্ধ হয়ে যায়।
- Thalassemia
- Leukemia
- Multiple myeloma
- Polycythemia / রক্ত ঘন হয়ে যাওয়া
- Hypercoagulable state — শরীরে সহজে রক্ত জমাট বাঁধার প্রবণতা।
২. ওষুধজনিত কারণ / Drug-induced priapism
কিছু ওষুধ priapism করতে পারে, বিশেষ করে ভুল dose, misuse বা sensitivity থাকলে।
- Erectile dysfunction injection
যেমন: Alprostadil, Papaverine, Phentolamine - Sexual power/ED medicine
যেমন: Sildenafil, Tadalafil, Vardenafil - Antidepressant medicine
যেমন: Trazodone, Fluoxetine, Sertraline - Antipsychotic medicine
যেমন: Risperidone, Olanzapine, Clozapine, Chlorpromazine - Alpha-blocker medicine
যেমন: Prazosin, Terazosin, Doxazosin, Tamsulosin - Blood thinner / anticoagulant
যেমন: Heparin, Warfarin - Hormonal medicine
যেমন: Testosterone - Antiepileptic / nerve medicine
যেমন: Valproate, Gabapentin, Pregabalin, Carbamazepine
৩. আঘাতজনিত কারণ / Trauma
- Penis-এ আঘাত
- Perineum বা দুই পায়ের মাঝখানের জায়গায় আঘাত
- Bicycle injury
- Pelvic injury
- Accident বা fall injury
Shortcut: আঘাতের পর যদি ব্যথা কম থাকে কিন্তু penis partially erect থাকে, তাহলে non-ischemic/high-flow priapism হতে পারে।
৪. স্নায়ুজনিত কারণ / Neurological cause
- Spinal cord injury
- Cauda equina syndrome
- Lumbar disc prolapse
- Stroke
- Brain tumor
- Spinal anesthesia
- Autonomic nervous system problem
৫. ক্যান্সারজনিত কারণ / Malignancy
কিছু cancer penis/corpora cavernosa-তে spread করলে priapism হতে পারে।
- Prostate cancer
- Bladder cancer
- Urethral cancer
- Testicular cancer
- Rectal cancer
- Penile metastasis
৬. Infection / toxin / metabolic cause
- Malaria
- Rabies
- Scorpion bite
- Spider bite
- Gout
- Amyloidosis
- Fabry disease
৭. Alcohol / drug abuse
- Alcohol misuse
- Cocaine
- Marijuana / cannabis
- Other recreational drugs
সবচেয়ে Common & Important Causes মনে রাখার shortcut
“S-D-T-N-M”
- S = Sickle cell disease
- D = Drugs — sildenafil, trazodone, antipsychotic, injection
- T = Trauma
- N = Neurological disease
- M = Malignancy / cancer
Emergency warning
যদি erection ৪ ঘণ্টার বেশি থাকে, বিশেষ করে ব্যথা থাকে ও penis খুব শক্ত থাকে, তাহলে এটি urological emergency — দ্রুত hospital/urologist দেখাতে হবে।
A. Hematological / blood-related
- Sickle cell disease — priapism-এর classic cause; recurrent/stuttering হতে পারে।
- Thalassemia
- Leukemia
- Multiple myeloma
- G6PD deficiency
- Hypercoagulable state / thrombophilia
B. Drugs / medication-induced
- Intracavernosal ED injection: alprostadil, papaverine, phentolamine
- PDE5 inhibitors: sildenafil, tadalafil — rare but possible, especially misuse/combination
- Antidepressant: trazodone, fluoxetine, sertraline, bupropion
- Antipsychotic: risperidone, olanzapine, clozapine, chlorpromazine
- Alpha-blocker: prazosin, terazosin, doxazosin, tamsulosin
- Anticoagulant: heparin, warfarin
- Antihypertensive: hydralazine, propranolol
- Hormonal drugs: testosterone, GnRH analogues
- Antiepileptic: valproate, gabapentin, lamotrigine, levetiracetam, pregabalin, carbamazepine, phenytoin, topiramate
C. Trauma
- Perineal trauma
- Penile trauma
- Bicycle injury / straddle injury
- Pelvic trauma
Trauma-পরবর্তী painless partial erection হলে non-ischemic high-flow priapism ভাবতে হবে।
D. Neurological
- Spinal cord injury
- Cauda equina syndrome
- Lumbar disc herniation
- Spinal anesthesia
- Stroke / brain tumor
- Autonomic neuropathy
E. Malignancy / local infiltration
- Prostate cancer
- Bladder cancer
- Urethral cancer
- Testicular cancer
- Rectal cancer
- Metastasis to penis/corpora
F. Infection / toxin / metabolic
- Malaria, rabies
- Scorpion/spider bite
- Amyloidosis, Fabry disease, gout
G. Recreational substances
- Alcohol misuse
- Cocaine/crack
- Marijuana
These causes are listed in major urology guideline etiologic tables.
- Must symptoms — রোগীর কী কী complaint থাকবে?
Symptopms on point Basis:-
Priapism-এর Symptoms — বাংলায় point আকারে বিস্তারিত
১. প্রধান লক্ষণ
- যৌন উত্তেজনা ছাড়াই penis erect থাকা
- যৌন কাজ শেষ হওয়ার পরও erection না কমা
- ৪ ঘণ্টা বা তার বেশি erection থাকা
- Ejaculation/বীর্যপাতের পরও erection ঠিক না হওয়া
এগুলো priapism-এর core symptom। AUA অনুযায়ী priapism হলো sexual stimulation ছাড়াই বা stimulation শেষ হওয়ার পরও persistent penile erection।
২. Ischemic / Low-flow priapism-এর symptoms
এটা সবচেয়ে dangerous type এবং urological emergency।
Must symptoms
- Penis খুব শক্ত হয়ে থাকে
- Shaft বা corpora cavernosa খুব hard থাকে
- Glans penis বা মাথার অংশ তুলনামূলক নরম থাকতে পারে
- Severe penile pain থাকে
- Pain ধীরে ধীরে বাড়তে পারে
- Erection সাধারণত ৪ ঘণ্টার বেশি থাকে
- Sexual desire না থাকলেও erection থাকে
- Ejaculation করলেও erection কমে না
- Penis heavy/tight/fullness feel হতে পারে
- Long duration হলে penis-এ numbness বা অসাড়তা হতে পারে
কেন ব্যথা হয়?
- Penis-এর ভেতরে blood আটকে যায়।
- Oxygen কমে যায়।
- Carbon dioxide ও acid বাড়ে।
- Tissue hypoxia হয়।
- তাই ব্যথা হয় এবং untreated থাকলে erectile dysfunction হতে পারে। NIH/NCBI review অনুযায়ী ischemic priapism true emergency এবং prompt treatment না হলে permanent erectile dysfunction হতে পারে।
Simple clinical clue
- Painful + very hard penis + >4 hours = Ischemic priapism ধরে emergency treatment.
৩. Non-ischemic / High-flow priapism-এর symptoms
এটা সাধারণত trauma বা injury-এর পরে হয়।
Must symptoms
- Penis erect থাকে কিন্তু পুরোপুরি hard হয় না
- Usually pain কম থাকে বা pain থাকে না
- Penis partially rigid থাকে
- Perineum/penis/pelvis injury history থাকতে পারে
- Erection অনেকক্ষণ থাকতে পারে, কিন্তু ischemic type-এর মতো severe pain হয় না
- Urgent pain crisis সাধারণত থাকে না
Simple clinical clue
- Trauma-এর পরে painless বা mild pain + partially erect penis = Non-ischemic priapism চিন্তা করবেন।
SMSNA quick reference অনুযায়ী ischemic priapism painful emergency, আর non-ischemic priapism arterial flow problem-এর কারণে prolonged erection হলেও ischemic-এর মতো emergency নয়।
৪. Stuttering / Recurrent priapism-এর symptoms
এটা বারবার episode আকারে হয়।
Must symptoms
- বারবার erection হওয়া
- সাধারণত painful erection হয়
- রাত বা ভোরে বেশি হতে পারে
- কিছু সময় পর নিজে নিজে কমে যায়
- Episode repeat করে
- Sickle cell disease থাকলে বেশি দেখা যায়
- কোনো episode যদি ৪ ঘণ্টার বেশি থাকে, তখন সেটা acute ischemic priapism হিসেবে emergency
Simple clinical clue
- বারবার painful erection, নিজে নিজে কমে যায় = stuttering priapism.
- কিন্তু ৪ ঘণ্টা পার হলে emergency.
৫. Duration অনুযায়ী symptom বুঝার shortcut
| Duration | Meaning |
| <2 ঘণ্টা | prolonged erection হতে পারে, observe করা যায় যদি pain না থাকে |
| 2–4 ঘণ্টা | warning stage; cause খুঁজতে হবে |
| ≥4 ঘণ্টা | Priapism emergency, especially painful rigid erection |
| >24 ঘণ্টা | erectile tissue damage risk বেশি |
| >36–48 ঘণ্টা | permanent erectile dysfunction risk অনেক বেশি |
৬. Patient কীভাবে বলবে? Real example
Example 1 — Ischemic priapism
“ডাক্তার, ৬ ঘণ্টা ধরে erection আছে, খুব ব্যথা করছে, penis অনেক শক্ত, যৌন উত্তেজনা নেই, বীর্যপাতের পরও কমেনি।”
Diagnosis ভাববেন: Ischemic priapism — emergency.
Example 2 — Non-ischemic priapism
“সাইকেল থেকে পড়ে দুই পায়ের মাঝখানে আঘাত লেগেছে। এরপর penis erect আছে, কিন্তু ব্যথা খুব বেশি না, পুরো hard না।”
Diagnosis ভাববেন: Non-ischemic/high-flow priapism.
Example 3 — Stuttering priapism
“প্রায়ই রাতে penis শক্ত হয়, ব্যথা করে, ১–২ ঘণ্টা পরে নিজে নিজে কমে যায়। মাঝে মাঝে বেশি সময় থাকে।”
Diagnosis ভাববেন: Stuttering/recurrent priapism.
৭. Red flag symptoms — এগুলো থাকলে emergency
- Erection ৪ ঘণ্টার বেশি
- Severe penile pain
- Penis shaft খুব hard
- Glans soft কিন্তু shaft rigid
- Sickle cell disease history
- Leukemia/thalassemia history
- ED injection নেওয়ার পর erection কমছে না
- Trazodone/antipsychotic/sexual medicine নেওয়ার পর prolonged erection
- Trauma-এর পরে prolonged erection
- Previous priapism history
৮. এক লাইনের clinical shortcut
“৪ ঘণ্টার বেশি painful hard erection = ischemic priapism until proven otherwise = emergency.”
Summary
Priapism-এর প্রধান symptom হলো sexual stimulation ছাড়াই বা stimulation শেষ হওয়ার পরও prolonged erection। Painful, very hard, >4 hours erection হলে ischemic priapism ধরে urgent urology management দরকার। Trauma-এর পরে painless partial erection হলে non-ischemic priapism হতে পারে। বারবার painful erection হয়ে নিজে নিজে কমে গেলে stuttering priapism ভাবতে হবে।
Ischemic priapism — emergency picture
- ৪ ঘণ্টার বেশি erection
- Severe penile pain
- Shaft/corpora cavernosa খুব শক্ত
- Glans penis তুলনামূলক soft থাকতে পারে
- Sexual stimulation ছাড়াই erection
- Urination সাধারণত possible, তবে discomfort থাকতে পারে
- Long duration হলে numbness, dark corporal blood, later erectile dysfunction risk
Non-ischemic priapism
- Pain কম বা নেই
- Penis fully hard না, partially erect
- Trauma history থাকতে পারে
- Erection অনেকক্ষণ থাকে কিন্তু ischemic-type severe pain থাকে না
Stuttering priapism
- বারবার painful erection
- সাধারণত রাতে/ভোরে হয়
- নিজে নিজে কমে যায়
- Episode দীর্ঘ হলে ischemic priapism-এ convert হতে পারে
4. Clinical diagnosis — কীভাবে clinically diagnose করবো?
History নিতে হবে
- Erection duration: কত ঘণ্টা?
- Pain আছে কি না
- Previous priapism history
- Sickle cell disease / thalassemia / leukemia history
- ED injection বা sildenafil/tadalafil use history
- Psychiatric drugs: trazodone, antipsychotic, SSRI
- Trauma history
- Recreational drug/alcohol history
- Baseline erectile function
Physical examination
- Penis shaft/corpora কতটা rigid
- Glans soft না hard
- Penile/perineal trauma sign
- Abdominal/pelvic mass
- Signs of sickle crisis, pallor, jaundice
- Neurological exam if spinal/neurologic cause suspected
5. Specific investigations
A. Corpus cavernosum blood gas — most specific emergency test
| Parameter | Ischemic priapism | Non-ischemic priapism |
| Blood color | Dark, hypoxic blood | Bright red arterial blood |
| pO₂ | <30 mmHg | >90 mmHg |
| pCO₂ | >60 mmHg | <40 mmHg |
| pH | <7.25 | around 7.40 |
Cavernosal blood gas is guideline-supported for differentiating ischemic from non-ischemic priapism.
B. CBC with differential + platelet count
- Leukemia
- Polycythemia
- Infection
- Anemia / sickle cell crisis clue
C. Sickle cell screening
- Hb electrophoresis / HPLC
- Reticulocyte count
- Peripheral blood film
- LDH, bilirubin if hemolysis suspected
D. Coagulation profile
- PT/INR
- aPTT
Especially anticoagulant use, bleeding risk, procedure planning.
E. Penile color Doppler ultrasound
- Ischemic: little/no cavernosal arterial flow
- Non-ischemic: high arterial inflow, fistula/pseudoaneurysm may be seen
F. Toxicology / medication review
- Cocaine, recreational drugs if suspected
- Full prescription review
G. MRI penis/pelvis
- Prolonged/refractory priapism
- Suspected corporal smooth muscle necrosis
- Suspected malignancy/metastasis
EAU guideline lists blood gas, Doppler, hematologic testing and MRI in selected prolonged/refractory cases.
6. Differential diagnosis
- Normal nocturnal erection
- Sleep-related painful erections
- Peyronie disease
- Penile fracture
- Paraphimosis
- Balanitis / cellulitis / cavernositis
- Penile malignancy
- Acute urinary retention with penile discomfort
- ED drug-related prolonged erection, not yet true priapism if <4h
7. Treatment management — guideline-based
A. Ischemic priapism: emergency algorithm
Rule: painful rigid erection ≥4h হলে urology emergency। Treatment delay করলে erectile dysfunction risk বাড়ে।
Step 1 — Immediate ED/urology care
- Vitals, BP, pulse, ECG monitoring if sympathomimetic planned
- Severe pain control
- Stop offending drug
- Urology call
- Sickle cell patient হলে hematology call, কিন্তু penile emergency treatment delay করা যাবে না
Step 2 — Local anesthesia
- Penile block with plain lidocaine
- Then aspiration/irrigation
Step 3 — Corporal aspiration ± saline irrigation
- 16–18G needle/butterfly
- 10 o’clock or 2 o’clock position
- Dark blood aspirate করা
- Normal saline irrigation until bright blood/partial detumescence
Step 4 — Intracavernosal phenylephrine
- Guideline preferred alpha-agonist
- Dilution: 100–500 microgram/mL
- Dose: 100–200 microgram every 3–5 minutes
- Maximum: 1 mg within 1 hour
- BP/HR monitor mandatory
EAU guideline gives phenylephrine 200 microgram doses every 3–5 min, max 1 mg/hour.
Step 5 — If failed
- Repeat aspiration + phenylephrine
- Distal shunt: Winter / Ebbehoj / T-shunt
- Tunneling if needed
- Refractory/prolonged >36–48h: discuss early penile prosthesis
B. Acute ischemic priapism pharmacological drugs :-
| Generic + therapeutic class | Why used | Dose / duration | Side effects | Important interactions / caution | Bangladesh brand examples |
| Phenylephrine HCl — alpha-1 adrenergic agonist / vasopressor | Cavernosal smooth muscle contraction করে trapped blood বের হতে সাহায্য করে | Intracavernosal 100–200 mcg q3–5 min, max 1 mg/hour; ED procedure only | Hypertension, headache, reflex bradycardia/tachycardia, palpitation, arrhythmia | Uncontrolled HTN, severe cardiac disease caution; MAOI/TCA/SNRI/sympathomimetic drugs hypertensive effect বাড়ায়; alpha-blocker effect কমাতে পারে | Vasculex IV Injection 0.5 mg/5 mL = 100 mcg/mL phenylephrine; Popular Pharmaceuticals. Intracavernosal use is specialist/off-label. |
| Lidocaine HCl plain — amide local anesthetic | Penile block/aspiration pain control | 1% or 2% plain lidocaine; usual max without adrenaline 4.5 mg/kg; single procedure | Local numbness, dizziness, seizure/cardiac toxicity if overdose | Avoid overdose; caution severe liver disease, antiarrhythmic use | Chemocain 2%, G-Lidocaine 2%, Jasocaine 1/2/4%, Locaine 2%, Z-Lidocaine 2% etc. |
| 0.9% Normal saline — crystalloid irrigant | Corporal irrigation | As needed during aspiration | Pain/swelling if extravasation | Sterile technique mandatory | Hospital supply |
C. Sickle cell disease-associated priapism
Acute episode management same as ischemic priapism: aspiration/irrigation + phenylephrine delay করা যাবে না। Supportive care: hydration, analgesia, oxygen only if hypoxic, hematology involvement। NHLBI guidance says sickle cell priapism ≥4h needs hydration/analgesia/urology consultation, but transfusion should not be first immediate treatment.
Hydroxyurea for prevention in SCD
| Generic + class | Why used | Dose / duration | Side effects | Interaction | Bangladesh brand |
| Hydroxyurea — antimetabolite; HbF-inducing cytotoxic drug | SCD vaso-occlusion কমায়; recurrent priapism prevention-এ useful হতে পারে when SCD indication present | Start 15 mg/kg once daily, titrate every 12 weeks by 5 mg/kg/day; max 35 mg/kg/day; long-term hematology follow-up | Myelosuppression, neutropenia, thrombocytopenia, GI upset, mouth ulcer, skin/nail pigmentation, teratogenicity, possible oligospermia | Antiretroviral drugs, myelosuppressive drugs, live vaccine caution | Hydrea 500 mg, Hydronix 500 mg, Mylostat 500 mg. |
D. Non-ischemic / high-flow priapism treatment
- Usually trauma-related
- Pain কম, penis partially rigid
- Confirm with Doppler + blood gas
- Initial: observation, ice pack/perineal compression
- Persistent bothersome case: selective arterial embolization
- Aspiration/phenylephrine usually helpful নয়
- Surgery last option
EAU notes non-ischemic priapism is commonly trauma/fistula-related and conservative care or selective arterial embolization is used when persistent.
8. Stuttering / recurrent priapism prevention drugs
Important: এগুলো acute painful rigid erection ≥4h হলে home treatment নয়। Acute episode ischemic priapism হিসেবে emergency treat করতে হবে। Long-term prevention drugs mostly off-label and urologist/hematologist-supervised। Evidence quality অনেক ক্ষেত্রে limited।
| Generic + therapeutic class | Why used | Dose / duration | Side effects | Interaction / caution | Bangladesh brand examples |
| Sildenafil — PDE5 inhibitor | Paradoxically recurrent/stuttering priapism কমাতে পারে by normalizing NO–PDE5 pathway; only when penis flaccid | 25–50 mg once daily, start only flaccid state; effect may take ~1 week; specialist plan | Headache, flushing, dyspepsia, nasal congestion, visual disturbance, hypotension | Nitrates/riociguat contraindicated; alpha-blocker hypotension; CYP3A4 inhibitors increase level | Edegra 50/100 mg, Silagra 50/100 mg, Performax 50/100 mg, Viamax 25/50/100 mg, Vigorex 25/50/100 mg. |
| Tadalafil — PDE5 inhibitor | Same prevention logic; longer half-life | 5 mg once daily, only flaccid state; specialist plan | Headache, flushing, dyspepsia, back pain, myalgia, hypotension | Nitrates/riociguat contraindicated; alpha-blocker, CYP3A4 inhibitors caution | Intimate 2.5/5/10/20 mg, Tada 5/10/20 mg, Tadafil 5/10 mg, Tadalis 10 mg, Tealis 5/10/20 mg. |
| Finasteride — 5-alpha reductase inhibitor | Androgen/DHT effect কমিয়ে recurrent episodes কমাতে ব্যবহার হয় | 5 mg once daily, usually 3–6 months then review | Low libido, ED, ejaculation disorder, gynecomastia, mood change | Pregnancy handling caution; PSA interpretation changes | Pronor 5 mg, Prosfin 5 mg. |
| Dutasteride — 5-alpha reductase inhibitor | Finasteride alternative | 0.5 mg once daily, 3–6 months then review | Low libido, ED, ejaculation disorder, breast tenderness | Pregnancy handling caution; CYP3A4 inhibitors caution | Dutamax 0.5 mg, Urodart 0.5 mg. |
| Ketoconazole + low-dose steroid — imidazole antifungal; androgen synthesis suppressor | Testosterone suppression করে recurrent priapism কমাতে off-label | Example specialist regimen: ketoconazole 200 mg TID + prednisolone/prednisone 5 mg daily for 2 weeks, then ketoconazole 200 mg nightly up to 5–6 months | Hepatotoxicity, GI upset, adrenal suppression, gynecomastia, low libido | Strong CYP3A4 inhibitor: warfarin, statin, benzodiazepine, QT-prolonging drugs interaction; LFT monitoring mandatory | Dancel 200 mg, Ketocon 200 mg, Ketoral 200 mg, Ketotab 200 mg, Kezona 200 mg. |
| Bicalutamide — non-steroidal antiandrogen | Refractory recurrent priapism prevention in selected adult patients | 50 mg once daily or individualized specialist dose | Hot flush, gynecomastia, low libido, ED, liver enzyme rise | Warfarin interaction; LFT monitoring; adult only | Bicalon 50 mg, Calumide 50 mg, Calupros 50 mg, Casodex 50 mg. |
| Leuprorelin acetate — GnRH agonist | Severe refractory recurrent priapism; androgen suppression | Depot 3.75 mg monthly or 11.25 mg 3-monthly, specialist only | Hot flush, loss libido, ED, infertility risk, osteoporosis, metabolic effects | QT risk, diabetes/CVD caution | Lucrin Depot 3.75 mg / 11.25 mg listed; local availability must be verified. |
| Goserelin — GnRH agonist | Leuprorelin alternative for refractory cases | 3.6 mg SC every 28 days or 10.8 mg every 12 weeks | Hot flush, low libido, ED, osteoporosis, metabolic effects | QT risk, diabetes/CVD caution | Zoladex 3.6 mg, Zoladex 10.8 mg. |
| Terbutaline sulfate — beta-2 agonist | Mostly intracavernosal injection-induced prolonged erection/stuttering selected cases; not for established ischemic priapism >4h | 5 mg orally once has been used for ICI-related prolonged erection; specialist advice | Tremor, tachycardia, palpitation, hypokalemia, hyperglycemia | Beta-blocker antagonizes; diuretic/steroid/xanthine hypokalemia risk | Terbulin syrup 1.5 mg/5 mL listed. |
| Ephedrine HCl — mixed alpha/beta sympathomimetic | Alpha-agonist prophylaxis has been studied in stuttering priapism, but evidence limited | Trial regimens include 15–30 mg at bedtime; specialist only | Palpitation, hypertension, insomnia, tremor, urinary retention | MAOI/TCA/SNRI/sympathomimetic interaction; avoid uncontrolled HTN/arrhythmia | Asmaphen 30 mg tablet, Asmaphen 15 mg/5 mL syrup, Ephidin/Epidron/Fedrin injection 25 mg/5 mL. |
| Baclofen — GABA-B agonist muscle relaxant | Spinal cord/reflexogenic recurrent priapism selected cases | 10 mg TID, titrate; max commonly 80–90 mg/day; specialist plan | Sedation, dizziness, weakness, hypotension, confusion; withdrawal seizure risk if abrupt stop | Alcohol, opioid, benzodiazepine, antihypertensive, TCA increase CNS/BP effects | Liofen 5/10 mg, Liorel 5/10 mg, Lioresal 10 mg, Lospan 10/25 mg, Mylofen 5/10 mg, Myorel 5/10/25 mg, Reflexen 10/25 mg. |
1. Acute Ischemic Priapism-এর Main Drug:-
১) Generic: Phenylephrine Hydrochloride
- Therapeutic class: Alpha-1 adrenergic agonist / Vasopressor
- Use কেন: Penis-এর corpora cavernosa contract করে trapped blood বের করতে সাহায্য করে।
- Dose:
- Intracavernosal 200 microgram every 3–5 minutes
- Maximum 1 mg within 1 hour
- Duration: Emergency procedure চলাকালীন।
- Side effects:
- Hypertension
- Palpitation
- Bradycardia/tachycardia
- Headache
- Arrhythmia
- Interaction / caution:
- MAOI, TCA, SNRI, sympathomimetic drugs → BP বাড়তে পারে
- HTN, IHD, arrhythmia রোগীতে caution
- Bangladesh brand example:
- Vasculex IV Injection 0.5 mg/5 mL
- Generic: Phenylephrine Hydrochloride
- Company: Popular Pharmaceuticals Ltd.
MedEx Bangladesh Vasculex-এর generic হিসেবে Phenylephrine Hydrochloride এবং strength 0.5 mg/5 mL দেখায়; EAU guideline ischemic priapism-এ intracavernosal phenylephrine 200 mcg every 3–5 min, max 1 mg/hour উল্লেখ করেছে।
2. Procedure Pain Control Drug
২) Generic: Lidocaine Hydrochloride
- Therapeutic class: Amide local anesthetic
- Use কেন: Penile block / local anesthesia দিয়ে aspiration-irrigation procedure-এর pain কমাতে।
- Dose:
- 1% বা 2% plain lidocaine penile block
- Maximum without adrenaline: 4.5 mg/kg
- Duration: Single procedure use
- Side effects:
- Local numbness
- Dizziness
- Metallic taste
- Overdose হলে seizure/cardiac toxicity
- Interaction / caution:
- Severe liver disease
- Antiarrhythmic drug
- Dose limit cross করা যাবে না
- Bangladesh brand examples:
- Lidocaine Injection 2% — Generic: Lidocaine Hydrochloride
- Chemocain 2% Injection — Generic: Lidocaine Hydrochloride
- G-Lidocaine 2% Injection — Generic: Lidocaine Hydrochloride
- Jasocaine 1% / 2% Injection — Generic: Lidocaine Hydrochloride
MedEx Bangladesh lidocaine injection brands ও Lidocaine Injection 2% as Lidocaine Hydrochloride listed করেছে।
3. Sickle Cell Disease-related Recurrent Priapism Prevention
৩) Generic: Hydroxyurea
- Therapeutic class: Antimetabolite; HbF-inducing drug
- Use কেন: Sickle cell disease-এ vaso-occlusive crisis ও recurrent priapism tendency কমাতে।
- Dose:
- Start 15 mg/kg orally once daily
- CBC monitoring করে titration
- Maximum usually 35 mg/kg/day
- Duration: Long-term; hematologist follow-up দরকার।
- Side effects:
- Myelosuppression
- Neutropenia
- Thrombocytopenia
- Mouth ulcer
- GI upset
- Skin/nail pigmentation
- Teratogenicity
- Interaction / caution:
- Live vaccine caution
- Other myelosuppressive drugs
- Pregnancy avoid
- CBC monitoring mandatory
- Bangladesh brand examples:
- Hydrea 500 mg capsule — Generic: Hydroxyurea
- Hydronix 500 mg capsule — Generic: Hydroxyurea
- Mylostat 500 mg capsule — Generic: Hydroxyurea
Hydroxyurea is a once-daily disease-modifying therapy in sickle cell anemia; MedEx lists Hydroxyurea as available in Bangladesh.
4. Stuttering / Recurrent Priapism Prevention Drugs
৪) Generic: Sildenafil Citrate
- Therapeutic class: PDE-5 inhibitor
- Use কেন: Recurrent/stuttering priapism prevention-এ paradoxical use; only flaccid state-এ শুরু করা হয়।
- Dose:
- 25–50 mg orally once daily
- Duration: Specialist follow-up অনুযায়ী কয়েক সপ্তাহ–মাস।
- Side effects:
- Headache
- Flushing
- Dyspepsia
- Nasal congestion
- Visual disturbance
- Hypotension
- Interaction / contraindication:
- Nitrate contraindicated
- Riociguat contraindicated
- Alpha-blocker + sildenafil → hypotension
- Bangladesh brand examples:
- Silagra 50/100 mg — Generic: Sildenafil Citrate
- Performax 50/100 mg — Generic: Sildenafil Citrate
- Panagra 50/100 mg — Generic: Sildenafil Citrate
- Vigorex 25/50/100 mg — Generic: Sildenafil Citrate
MedEx Bangladesh Sildenafil Citrate-এর available brand list দেখায়।
৫) Generic: Tadalafil
- Therapeutic class: PDE-5 inhibitor
- Use কেন: Recurrent/stuttering priapism prevention-এ sildenafil alternative; long half-life।
- Dose:
- 5 mg orally once daily
- Duration: Specialist follow-up অনুযায়ী।
- Side effects:
- Headache
- Flushing
- Dyspepsia
- Back pain
- Myalgia
- Hypotension
- Interaction / contraindication:
- Nitrate contraindicated
- Riociguat contraindicated
- Alpha-blocker caution
- Bangladesh brand examples:
- Tadafil 5/10 mg — Generic: Tadalafil
- Tada 10/20 mg — Generic: Tadalafil
- Tadalis 10 mg — Generic: Tadalafil
- Tealis 5/10/20 mg — Generic: Tadalafil
MedEx Bangladesh tadalafil available brand list এবং 5 mg daily dose for BPH/ED+BPH indication উল্লেখ করে।
৬) Generic: Finasteride
- Therapeutic class: 5-alpha reductase inhibitor
- Use কেন: DHT কমিয়ে androgen-related recurrent priapism কমাতে off-label ব্যবহার হতে পারে।
- Dose:
- 5 mg orally once daily
- Duration: Usually 3–6 months, then review।
- Side effects:
- Low libido
- Erectile dysfunction
- Ejaculatory disorder
- Gynecomastia
- Mood change
- Interaction / caution:
- Pregnancy handling caution
- PSA level কম দেখাতে পারে
- Bangladesh brand examples:
- Pronor 5 mg — Generic: Finasteride
- Prosfin 5 mg — Generic: Finasteride
MedEx Bangladesh finasteride BPH list-এ Pronor 5 mg ও Prosfin 5 mg listed।
৭) Generic: Dutasteride
- Therapeutic class: Dual 5-alpha reductase inhibitor
- Use কেন: Finasteride alternative; androgen suppression করে recurrent priapism কমাতে selected case-এ ব্যবহার হতে পারে।
- Dose:
- 0.5 mg orally once daily
- Duration: Usually 3–6 months, then review।
- Side effects:
- Low libido
- Erectile dysfunction
- Ejaculatory problem
- Breast tenderness
- Gynecomastia
- Interaction / caution:
- CYP3A4 inhibitor caution
- Pregnancy handling caution
- PSA interpretation change
- Bangladesh brand examples:
- Dutamax 0.5 mg — Generic: Dutasteride
- Urodart 0.5 mg — Generic: Dutasteride
MedEx Bangladesh dutasteride available brand page এবং dutasteride side effects list দেখায়।
৮) Generic: Ketoconazole + Prednisolone / Prednisone
- Therapeutic class:
- Ketoconazole: Imidazole antifungal; androgen synthesis suppressor
- Prednisolone/Prednisone: Glucocorticoid
- Use কেন: Testosterone synthesis কমিয়ে severe recurrent priapism prevent করতে off-label use; steroid দেওয়া হয় adrenal suppression risk কমাতে।
- Dose example:
- Ketoconazole 200 mg orally TID + Prednisolone/Prednisone 5 mg daily for 2 weeks
- Then Ketoconazole 200 mg nightly for কয়েক মাস
- Duration: Usually 3–6 months, LFT monitoring সহ।
- Side effects:
- Hepatotoxicity
- Nausea/vomiting
- Low libido
- Gynecomastia
- Adrenal suppression
- Interaction / caution:
- Strong CYP3A4 inhibitor
- Warfarin, statin, benzodiazepine, QT-prolonging drugs interaction
- Liver disease হলে avoid/caution
- Bangladesh brand examples:
- Dancel 200 mg — Generic: Ketoconazole
- Ketocon 200 mg — Generic: Ketoconazole
- Ketoral 200 mg — Generic: Ketoconazole
- Ketotab 200 mg — Generic: Ketoconazole
- Prednisolone brands — Generic: Prednisolone
MedEx Bangladesh Ketoconazole ও Prednisolone pages list করে; prednisolone synthetic adrenocortical glucocorticoid হিসেবে described।
৯) Generic: Bicalutamide
- Therapeutic class: Non-steroidal antiandrogen
- Use কেন: Severe refractory recurrent priapism-এ androgen receptor blockade করতে selected adult patient-এ off-label use।
- Dose:
- 50 mg orally once daily
- Duration: Specialist decision অনুযায়ী।
- Side effects:
- Hot flush
- Gynecomastia
- Low libido
- Erectile dysfunction
- Liver enzyme rise
- Interaction / caution:
- Warfarin interaction
- Liver disease caution
- LFT monitoring
- Bangladesh brand examples:
- Calumide 50 mg — Generic: Bicalutamide
- Calupros 50 mg — Generic: Bicalutamide
- Casodex 50 mg — Generic: Bicalutamide
MedEx Bangladesh bicalutamide brand list-এ Calumide, Calupros, Casodex 50 mg listed; bicalutamide androgen effect block করে।
১০) Generic: Leuprorelin Acetate
- Therapeutic class: GnRH agonist / LHRH agonist
- Use কেন: Severe refractory recurrent priapism-এ testosterone suppression।
- Dose:
- 3.75 mg IM/SC monthly
- অথবা 11.25 mg every 3 months
- Duration: Specialist plan অনুযায়ী।
- Side effects:
- Hot flush
- Low libido
- Erectile dysfunction
- Infertility risk
- Osteoporosis
- Metabolic changes
- Interaction / caution:
- QT prolongation risk
- Diabetes/CVD caution
- Bone health monitoring
- Bangladesh brand examples:
- Lucrin Depot 3.75 mg — Generic: Leuprorelin Acetate
- Lucrin Depot 11.25 mg — Generic: Leuprorelin Acetate
MedEx Bangladesh Lucrin Depot 3.75 mg ও 11.25 mg listed করে; leuprorelin acetate continuous dosing-এ gonadotropin secretion suppress করে।
১১) Generic: Goserelin
- Therapeutic class: GnRH agonist / LHRH agonist
- Use কেন: Leuprorelin alternative; testosterone suppression করে refractory recurrent priapism prevention-এ selected case।
- Dose:
- 3.6 mg SC every 28 days
- অথবা 10.8 mg SC every 12 weeks
- Duration: Specialist plan অনুযায়ী।
- Side effects:
- Hot flush
- Low libido
- ED
- Osteoporosis
- Mood change
- Interaction / caution:
- QT risk
- Diabetes/CVD caution
- Bone density monitoring
- Bangladesh brand examples:
- Zoladex 3.6 mg — Generic: Goserelin
- Zoladex 10.8 mg — Generic: Goserelin
MedEx Bangladesh goserelin available brand page lists this generic, and goserelin is used clinically as a GnRH agonist.
১২) Generic: Baclofen
- Therapeutic class: GABA-B receptor agonist / Skeletal muscle relaxant
- Use কেন: Neurologic/spinal cord-related recurrent priapism-এ selected case।
- Dose:
- Start 5–10 mg orally TID
- Gradually titrate
- Usual maximum 80 mg/day
- Duration: Cause অনুযায়ী specialist review।
- Side effects:
- Drowsiness
- Dizziness
- Weakness
- Hypotension
- Confusion
- Abrupt withdrawal হলে seizure risk
- Interaction / caution:
- Alcohol, opioid, benzodiazepine → CNS depression
- Antihypertensive drug → hypotension
- Bangladesh brand examples:
- Myorel 10/25 mg — Generic: Baclofen
- Reflexen 10/25 mg — Generic: Baclofen
- Restobac 5/10/25 mg — Generic: Baclofen
- Skelofen 5/10 mg — Generic: Baclofen
MedEx Bangladesh baclofen brand list ও side effects হিসেবে drowsiness, weakness, hypotension ইত্যাদি উল্লেখ করে।
5. Limited Role / Not Definitive Emergency Treatment
১৩) Generic: Terbutaline Sulfate
- Therapeutic class: Beta-2 agonist
- Use কেন: Injection-induced prolonged erection-এ historical/limited use; established ischemic priapism ≥৪ ঘণ্টায় definitive treatment না।
- Dose:
- Older protocol: 5 mg orally once
- Side effects:
- Tremor
- Tachycardia
- Palpitation
- Hypokalemia
- Hyperglycemia
- Interaction / caution:
- Beta-blocker effect কমায়
- Diuretic/steroid/xanthine → hypokalemia risk
- Bangladesh brand examples:
- Terbulin syrup 1.5 mg/5 mL — Generic: Terbutaline Sulfate
- Tervent nebuliser solution 5 mg/2 mL — Generic: Terbutaline Sulfate
MedEx Bangladesh terbutaline sulfate available brands listed করে; EAU table terbutaline 5 mg oral only prolonged erection after vasoactive injection context-এ উল্লেখ করে।
১৪) Generic: Ephedrine Hydrochloride
- Therapeutic class: Alpha + beta adrenergic agonist / Sympathomimetic
- Use কেন: Stuttering priapism prevention-এ limited/off-label use studied হয়েছে; emergency ischemic priapism-এর main treatment না।
- Dose:
- Specialist selected case: 15–30 mg at bedtime
- Side effects:
- Palpitation
- Hypertension
- Insomnia
- Tremor
- Urinary retention
- Interaction / caution:
- MAOI/TCA/SNRI/sympathomimetic interaction
- HTN, arrhythmia, prostate obstruction caution
- Bangladesh brand examples:
- Asmaphen 30 mg tablet — Generic: Ephedrine Hydrochloride
- Asmaphen syrup 15 mg/5 mL — Generic: Ephedrine Hydrochloride
- Ephidin injection 25 mg/5 mL — Generic: Ephedrine Hydrochloride
- Epidron injection 25 mg/5 mL — Generic: Ephedrine Hydrochloride
- Fedrin injection 25 mg/5 mL — Generic: Ephedrine Hydrochloride
MedEx Bangladesh ephedrine hydrochloride brand list ও pharmacology as alpha/beta sympathomimetic দেখায়।
Shortcut: Generic-wise Final List
Emergency acute ischemic priapism
- Phenylephrine Hydrochloride — main intracavernosal emergency drug
- Lidocaine Hydrochloride — penile block/local anesthesia
- Normal Saline 0.9% — corporal irrigation support
Sickle cell-related prevention
- Hydroxyurea
Recurrent / stuttering prevention
- Sildenafil Citrate
- Tadalafil
- Finasteride
- Dutasteride
- Ketoconazole + Prednisolone/Prednisone
- Bicalutamide
- Leuprorelin Acetate
- Goserelin
- Baclofen
- Ephedrine Hydrochloride — limited/off-label
Not definitive emergency treatment
- Terbutaline Sulfate
Overview / Summary
Priapism drug list-এ generic name সবচেয়ে গুরুত্বপূর্ণ। Acute ischemic priapism-এর main generic হলো Phenylephrine Hydrochloride। Procedure pain control-এ Lidocaine Hydrochloride। Sickle cell-related recurrent priapism-এ Hydroxyurea। Stuttering/recurrent priapism prevention-এ Sildenafil, Tadalafil, Finasteride, Dutasteride, Ketoconazole + steroid, Bicalutamide, Leuprorelin, Goserelin, Baclofen selected specialist-supervised/off-label use হতে পারে।
Actionable Plan / Steps
- Painful hard erection ≥৪ ঘণ্টা → emergency urology referral.
- Acute ischemic priapism → aspiration/irrigation + Phenylephrine Hydrochloride intracavernosal.
- Brand লিখলে prescription-এ অবশ্যই generic name + strength লিখবেন।
- Recurrent case হলে cause-based prevention drug urologist/hematologist supervision-এ নির্বাচন করবেন।
- Bangladesh brand availability prescribe করার আগে current pharmacy/DGDA availability verify করবেন।
Reference List
- EAU Guidelines on Sexual and Reproductive Health — Priapism: phenylephrine dosing and priapism management.
- AUA/SMSNA Guideline — Diagnosis and Management of Priapism.
- MedEx Bangladesh drug brand listings for phenylephrine, lidocaine, hydroxyurea, sildenafil, tadalafil, finasteride, dutasteride, ketoconazole, bicalutamide, leuprorelin, goserelin, baclofen, terbutaline and ephedrine.
9. Prevention — কীভাবে prevent করবো?
- ৪ ঘণ্টা rule: erection ৪ ঘণ্টা বা তার বেশি হলে emergency department/urologist।
- ED injection ব্যবহার করলে patient education: dose, maximum frequency, emergency plan লিখে দিতে হবে।
- Sildenafil/tadalafil recreational overdose বা combination avoid.
- Trazodone, antipsychotic, alpha-blocker, anticoagulant, testosterone—culprit হলে prescriber-এর সাথে drug change/adjust।
- Sickle cell disease থাকলে:
- hematology follow-up
- dehydration avoid
- alcohol/cocaine avoid
- infection দ্রুত treat
- hydroxyurea indication থাকলে regular monitoring
- Previous priapism থাকলে patient card/medical alert রাখা।
- Hormonal/antiandrogen drug নিজে নিজে শুরু করা যাবে না—fertility/sexual function/liver/metabolic risk আছে।
Overview / Summary
Priapism হলো prolonged erection, usually ≥4 hours। Painful rigid erection হলে ischemic priapism ধরে emergency treatment করতে হবে: corporal aspiration + saline irrigation + intracavernosal phenylephrine। Non-ischemic priapism সাধারণত trauma-related, painless/partial rigidity, Doppler-confirmed, এবং conservative/embolization-based management লাগে। Recurrent/stuttering priapism prevention-এ PDE5 inhibitor, 5-alpha reductase inhibitor, hydroxyurea, hormonal suppression, alpha-agonist ইত্যাদি off-labelভাবে specialist supervision-এ ব্যবহার হয়।
Actionable Plan / Steps
- Painful erection ≥4h → urgent urology/ED referral.
- Bedside classify: ischemic vs non-ischemic.
- Do corporal blood gas + CBC + Doppler.
- Ischemic হলে: analgesia/local block → aspiration/irrigation → phenylephrine.
- Failed হলে surgical shunt/prosthesis planning.
- SCD হলে hematology involve, কিন্তু penile treatment delay নয়।
- Recurrent হলে cause remove + urology-supervised prevention plan.
Reference List
- EAU Guidelines on Sexual and Reproductive Health — Priapism, current online guideline section: classification, diagnosis, acute ischemic treatment, non-ischemic treatment, stuttering prevention.
- Bivalacqua TJ, Allen BK, Brock G, et al. Acute Ischemic Priapism: An AUA/SMSNA Guideline. J Urol. 2021;206(5):1114–1121. DOI: 10.1097/JU.0000000000002236.
- NHLBI. Evidence-Based Management of Sickle Cell Disease: Expert Panel Report, 2014 — Quick Guide. Priapism ≥4h supportive care and urgent urologic management.
- Harrison’s Principles of Internal Medicine, 21st ed. Chapters on sickle cell disease/hematologic causes of vaso-occlusion.
- Campbell-Walsh-Wein Urology, 12th ed. Priapism chapter: pathophysiology, emergency management, shunt/prosthesis approach.
- Cochrane Review: Drug treatments for preventing priapism in boys and men with sickle cell disease—evidence remains limited/low certainty.
Md.Rafiqul Islam Lipu,Date:-23-05-2026 Saturday Time:-12-34-54 Pm