Pregnancy and GLP-1 Medications
GLP-1 drugs are not for use during pregnancy — and planning requires a washout period before conceiving.
Weight-management medications are contraindicated in pregnancy categorically — weight loss itself offers a fetus no benefit and poses risk — and GLP-1 safety data in human pregnancy is limited, with animal signals that justify caution. Labels advise stopping semaglutide at least two months before a planned pregnancy, reflecting its long half-life.
Two practical notes carry most of the weight. First, contraception: rapid weight loss can restore ovulation in people who assumed infertility (notably with PCOS), producing surprise pregnancies; oral contraceptive absorption also deserves a conversation given slowed gastric emptying with tirzepatide especially. Second, if pregnancy occurs on therapy, stop the drug and call your prescriber — promptly, not in panic.
This glossary entry is general information, not medical advice, and is written to be consistent with FDA prescribing information and primary trial publications as of its last review. Always consult a licensed healthcare provider for personal medical decisions.
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