Mounjaro has been shown to reduce the effectiveness of oral contraceptives, likely due to interference with the pill’s absorption in the digestive system.
If you are female and able to bear children, the use of contraception is recommended whilst taking this medication. If you are planning to become pregnant, please discuss it with our prescribers as you should stop using this medicine at least 1 month in advance.
If you are taking oral contraceptives, you should switch to a non-oral contraceptive method, or add a barrier method of contraception such as condoms, upon initiating Mounjaro (for 4 weeks) or after each dose escalation (for 4 weeks).