Short answer: The Aromasin label has no missed-dose instructions, in either the prescribing information or the Patient Information. It describes one 25 mg tablet once a day after a meal. Exemestane has a mean terminal half-life of about 24 hours, shorter than letrozole or anastrozole. Ask your prescriber or pharmacist what to do after a missed tablet.
| Situation | What the label says |
|---|---|
| Schedule | One 25 mg tablet once daily after a meal (2.1) |
| Missed-dose rule | None in the prescribing information or Patient Information |
| Half-life | Mean terminal half-life about 24 hours (12.3) |
| With strong CYP3A4 inducers | 50 mg once daily after a meal (2.2) |
No. We checked the Aromasin prescribing information and Patient Information from Pfizer on DailyMed. Neither says what to do after a missed dose. The Patient Information says to take it 1 time each day after a meal, exactly as your doctor tells you.
Section 12.3 says exemestane levels decline with a mean terminal half-life of about 24 hours. The Femara (letrozole) label gives about 2 days, so exemestane levels fall faster after a missed tablet.
Aromasin is labeled for breast cancer in postmenopausal women (section 1). Use alongside testosterone is outside the label, so the label has no schedule or missed-dose rule for it. That schedule comes from your prescriber.
This page summarizes FDA labeling. It is not personalized medical advice; confirm what to do with your prescriber or pharmacist.