Dutasteride Capsule Side Effects in Pakistan

Dutasteride (Avodart) is generally well-tolerated but has some significant side effects that are important to be aware of. This guide covers common, uncommon, and serious side effects — and when it is necessary to see a doctor — in complete detail.

Compiled by the PakVita Editorial Team · AI-assisted drafting with editorial review · Sourced from DRAP, WHO, BNF · Last updated: 2026-06-17

Side Effects

Quick Answer

Common side effects of Dutasteride include decreased libido, erectile dysfunction, ejaculation disorders, and gynecomastia. CRITICAL WARNING for pregnant women — do not handle the capsule at all (teratogen). PSA blood test values are reduced by ~50% — multiply the measured value by 2 for a true estimate. See a doctor immediately for any serious side effect.

Side Effects at a Glance

Common

Decreased libido
Erectile dysfunction
Ejaculation disorders (decreased ejaculate volume)
Gynecomastia / breast tenderness
Dizziness

Serious — See a Doctor

Persistent sexual dysfunction after stopping therapy (Post-Dutasteride Syndrome — scientifically debated)
Allergic reaction / contact dermatitis (especially women handling capsules)
High-grade prostate cancer signal (Gleason 8-10 — REDUCE trial; clinical significance debated)

When to See a Doctor Immediately

Breast lump, nipple discharge, or severe gynecomastia
Persistent sexual dysfunction after stopping dutasteride
Urinary retention — complete inability to urinate
Severe allergic reaction (rash, face swelling, breathing difficulty)
PSA level unexpectedly rising despite dutasteride use

Dutasteride Capsule Side Effects (Nuksanat)

Dutasteride Capsule (Avodart) is generally safe at the correct dose, but it has some important side effects that are necessary to understand — particularly in the context of male sexual health and pregnancy safety.

CRITICAL WARNING — Pregnant Women

Pregnant women or those who may become pregnant must NOT HANDLE dutasteride capsules AT ALL — not a normal capsule, not a crushed or broken capsule. Dutasteride can inhibit the normal development of a male fetus's external genitalia (feminisation). Absorption through skin is also possible — therefore zero handling. If contact occurs, wash immediately with soap and water.

Common Side Effects (Aam Nuksanat)

Decreased libido — reduced sexual desire
Erectile dysfunction — difficulty achieving erection
Ejaculation disorders — reduced ejaculate volume
Gynecomastia / breast tenderness — growth or tenderness of breast tissue in men
Dizziness

These side effects are often mild. Inform your doctor if they continue.

Serious Side Effects (Sanjeedah Nuksanat)

Persistent sexual dysfunction post-therapy — Post-Dutasteride Syndrome (PDS) — scientifically debated; some men report continued problems after stopping treatment. See a doctor immediately.
Allergic reaction / contact dermatitis — rash and itching from capsule handling in women. See a doctor immediately.
High-grade prostate cancer signal — a slight increase in Gleason 8-10 prostate cancer was observed in the REDUCE trial. Ongoing specialist monitoring is necessary. Discuss with your urologist.

PSA Test Warning

Dutasteride reduces the measured PSA value by approximately 50%. If you are getting a PSA test for prostate cancer screening — multiply the measured value by 2 for a true estimate. This adjustment is critical — otherwise a cancer diagnosis could be missed. Inform every doctor and oncologist about this medication.

When to See a Doctor (Kab Doctor Se Milna Zaroori Hai)

Breast lump, nipple discharge, or severe gynecomastia — urgent
Complete inability to urinate (urinary retention) — urgent
Persistent sexual dysfunction after stopping dutasteride
Severe allergic reaction — rash, face swelling, difficulty breathing
PSA level unexpectedly rising despite dutasteride use

Side Effects Summary Table

Type	Side Effect	Action
Common	Decreased libido	Inform your doctor
Common	Erectile dysfunction	Inform your doctor
Common	Ejaculation disorders	Inform your doctor
Common	Gynecomastia/breast tenderness	Inform your doctor
Serious	Post-Dutasteride Syndrome	See a doctor immediately
Serious	Allergic reaction/contact dermatitis	See a doctor immediately
CRITICAL	Pregnant women — fetal harm	Do not handle the capsule at all

Reporting Side Effects

If you notice any unexpected side effect, report it on the DRAP pharmacovigilance portal: https://www.dra.gov.pk/pharmacovigilance

The information in this guide is for educational purposes only. If you notice any side effect, contact your doctor or pharmacist.

Frequently Asked Questions

Dutasteride ke sabse common side effects kya hain?

The most common side effects are decreased libido, erectile dysfunction, and ejaculation disorders. These effects are more frequent in the first year of treatment and often reduce over time.

Dutasteride lene ke baad sexual problems hamesha ke liye ho jaate hain?

In the majority of men, sexual side effects resolve after stopping treatment. However, some men report persistent sexual dysfunction (Post-Dutasteride Syndrome) — this is a scientifically debated topic. Always discuss with a doctor before stopping.

Dutasteride women ke liye kyun dangerous hai?

Dutasteride is a teratogen — it can disrupt the normal sexual development of a male fetus in pregnant women. Skin absorption of the capsule contents is also dangerous — therefore women (especially those who are pregnant) should not handle the capsule at all.

Dutasteride aur PSA test ka kya connection hai?

Dutasteride reduces PSA blood test values by approximately 50%. For prostate cancer screening, multiply the measured PSA by 2. Every doctor and oncologist must be informed that the patient is taking dutasteride.

Gynecomastia ki soorat mein kya karna chahiye?

If breast tenderness or enlargement appears, see a doctor immediately. A breast lump requires urgent evaluation — do not delay seeing a doctor.

Sources

DRAP Registered Products Database — Drug Regulatory Authority of Pakistan
WHO Model List of Essential Medicines, 23rd ed. (2023) — World Health Organization
British National Formulary (BNF) — BMJ Group & Pharmaceutical Press

Medical disclaimer

This page is for educational use only and does not replace professional medical advice. Always confirm diagnosis, dose, and interactions with a qualified doctor or pharmacist before starting or changing any medicine.