Short answer: The Avodart Patient Information says that if you miss a dose, you may take it later that day. Do not make up the missed dose by taking 2 doses the next day. Avodart is one 0.5 mg capsule a day, and dutasteride has a very long half-life of about 5 weeks.
| Situation | What the label says |
|---|---|
| Schedule | One 0.5 mg capsule once daily (2.1) |
| Missed a dose | May take it later that day (Patient Information) |
| Next day | Do not take 2 doses (Patient Information) |
| Half-life | About 5 weeks at steady state (12.3) |
The Patient Information says: if you miss a dose, you may take it later that day. Do not make up the missed dose by taking 2 doses the next day.
Example: you take Avodart with breakfast and remember at dinner. Under the label you may take it then. If you only remember the next day, take your usual single capsule.
Dutasteride has a terminal half-life of about 5 weeks at steady state (section 12.3). That is long enough that one missed capsule barely changes the level in your blood.
The Avodart label covers an enlarged prostate (BPH). Hair-loss use is outside the label. The missed-dose wording is about the 0.5 mg daily capsule, so ask your prescriber if your schedule is different.
This page summarizes FDA labeling. It is not personalized medical advice; confirm what to do with your prescriber or pharmacist.