If you experience side effects from finasteride, how long do they last? Clinical trial data provides reassuring answers for most men.
Resolution While Continuing Treatment
More than half of men who reported side effects found they went away even though they kept taking the medication. The body often adapts over the first few months.
Resolution After Stopping
For men who stop finasteride due to side effects:
- Finasteride half-life: 5-6 hours (drug clears system within days)
- DHT recovery: Returns to baseline within 2 weeks
- Most symptoms: Resolve within days to weeks of stopping
- Typical timeline: 1-4 weeks for full resolution
What the Timeline Looks Like
- Days 1-3: Drug largely cleared from system
- Week 1: DHT levels beginning to normalize
- Week 2: DHT at or near baseline
- Weeks 2-4: Most reported side effects resolve
When to Be Concerned
If symptoms persist beyond 4-6 weeks after stopping, consult a healthcare provider. Persistent symptoms are rare but warrant medical evaluation to rule out other causes.
Questions About Treatment?
Understanding what to expect helps you make informed decisions.
Compare OptionsThe Bottom Line
Finasteride side effects are typically reversible. Most resolve on their own even with continued use, and nearly all resolve within weeks of stopping. The drug doesn't stay in your system long-term.