Femara Dosage
Generic name: letrozole
Drug classes: Aromatase inhibitors, Hormones / antineoplastics
Medically reviewed by A Ras MD.
Recommended Adult Dosing
Dosage forms: TAB: 2.5 mg
Breast CA, postmenopausal
- [hormone receptor-positive early dz, adjuvant tx]
 - Dose: 2.5 mg PO qd; Info: also for extended adjuvant tx after 5y tamoxifen tx
 
- [locally advanced or metastatic dz]
 - Dose: 2.5 mg PO qd
 
- [advanced, progressive dz]
 - Dose: 2.5 mg PO qd
 
*Ovulation induction
- [2.5-5 mg PO qd x5 days]
 - Start: day 3 of menstrual cycle
 
Renal dosing
- CrCl >10: no adjustment; CrCl <10: not defined
 
- HD: no adjustment; no supplement; PD: not defined
 
Hepatic dosing
- [adjust dose frequency]
 - cirrhosis/Child-Pugh Class C: give q48h
 
Recommended Peds Dosing
- Dosage forms: TAB: 2.5 mg
 
Precocious puberty
- [2 yo and older]
 - Dose: 2.5 mg PO qd; Info: for female pts w/ McCune-Albright syndrome or male pts w/ testotoxicosis
 
Renal dosing
- [not defined]
 - renal impairment: consider adult renal dosing for guidance
 
- HD/PD: consider adult renal dosing for guidance
 
Hepatic dosing
- [not defined]
 - hepatic impairment: consider adult hepatic dosing for guidance
 
SRC: NLM .