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Care365 medication guide
Dutasteride
The referenced approved indication is enlarged prostate. Hair-loss use is off-label and needs prescriber assessment.
Drug information
Uses, directions and safety information for Dutasteride.
What it is used for
The referenced approved indication is enlarged prostate. Hair-loss use is off-label and needs prescriber assessment.
How to use it
Swallow whole; do not open or chew. Hair-loss dosing cannot be inferred from this prostate monograph.
Before use
Not for women or children under the referenced label. Keep damaged capsules away from anyone who could be pregnant.
Possible side effects
Reduced libido, erection and ejaculation changes.
When to get medical help
Report breast changes or persistent sexual symptoms; disclose use before PSA testing.
Medicines and interactions
Strong metabolic inhibitors can increase exposure.
Pregnancy and breastfeeding
Must not be used during pregnancy; avoid contact with leaking capsules.
Missed doses, storage and accidental exposure
Follow your own product’s missed-dose instructions. If you are unsure, ask a pharmacist before taking an extra dose. Contraceptives, injections and modified-release medicines may need a specific plan.
Keep the original packaging and follow its storage, expiry and disposal instructions. Keep medicines away from children and pets. Ask about refrigeration, after-opening limits and safe sharps disposal when relevant.
For suspected overdose or accidental swallowing, contact poison control or urgent medical care promptly. Call emergency services for breathing difficulty, collapse or a seizure.
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Related condition guides
Learn about concerns where this medication may be discussed. Treatment depends on your individual assessment.
Prescription renewal and medication review
For a review of Dutasteride, have your current dose, reason for treatment, remaining supply, benefits, side effects and pharmacy details ready. Ask your pharmacist or prescriber whether a renewal assessment is available and appropriate. A prescription or renewal is not guaranteed.
Questions about Dutasteride
What is Dutasteride used for?
The referenced approved indication is enlarged prostate. Hair-loss use is off-label and needs prescriber assessment.
How should I use Dutasteride?
Swallow whole; do not open or chew. Hair-loss dosing cannot be inferred from this prostate monograph.
What side effects can Dutasteride cause?
Reduced libido, erection and ejaculation changes.
When should I get medical help while using Dutasteride?
Report breast changes or persistent sexual symptoms; disclose use before PSA testing.
Can Dutasteride interact with other medicines?
Strong metabolic inhibitors can increase exposure.
What should I know about Dutasteride during pregnancy or breastfeeding?
Must not be used during pregnancy; avoid contact with leaking capsules.
Sources and product information
Sources checked 2026-09-08. Safety sections are highlights; consult the full product information for complete warnings and instructions.
Check the Canadian Drug Product Database by product name or DIN for current product information.
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