Norethindrone and Tirzepatide interaction
Norethindrone and Tirzepatide: the Tirzepatide prescribing label describes an interaction that usually calls for monitoring, a dose change, or spacing the doses.
Usually manageable with monitoring or a dose change. Tell your pharmacist you take both.
What the FDA labels say
From the Tirzepatide (Zepbound) label · effective 2026-08-28
Advise patients using oral hormonal contraceptives to switch to a non-oral contraceptive method, or add a barrier method of contraception for 4 weeks after initiation with ZEPBOUND and for 4 weeks after each dose escalation.
Hormonal contraceptives that are not administered orally should not be affected [see Use in Specific Populations ( 8.3 ) and Clinical Pharmacology ( 12.2 , 12.3 )] .
Taking more than these two? Interactions stack. Check your whole list at once; it stays in your browser.
Open in the checkerNot medical advice. Interaction Checker quotes FDA label text and NIH fact sheets. Whether an interaction matters for you depends on doses, timing, kidney and liver function, and other conditions. Confirm with a pharmacist or prescriber.