What does isotretinoin treatment mean in pregnancy?

Isotretinoin is a prescription retinoid used for severe acne and related skin problems. It can interfere with fetal development, including development of the face, ears, heart, and nervous system. This concern applies even when the medicine was prescribed appropriately for acne.

Pregnancy planning, contraception, and pregnancy testing are therefore part of treatment safety. The exact monitoring and timing depend on the local prescribing programme and your clinician. Do not assume that a missed period, a negative early test, or a small amount taken makes the situation safe.

If you are pregnant, think you may be pregnant, or had unprotected sex while taking isotretinoin, do not take another dose until you have spoken with the prescriber or an urgent medical service. Contact the clinician who prescribed it as soon as possible and tell them the date of your last dose, the start of your period if known, and any other medicines or supplements.

Do not donate blood while taking isotretinoin and for the interval your prescriber gives you afterward. Do not share capsules. Ask for an acne plan that is appropriate for pregnancy or pregnancy planning rather than choosing an over-the-counter retinoid yourself. See the Isotretinoin Treatment page for broader treatment information.

Seek urgent medical advice today for a positive pregnancy test or suspected pregnancy during treatment. Emergency help is needed for severe headache with vision changes, fainting, severe abdominal pain, heavy bleeding, or an acute allergic reaction. These symptoms need assessment regardless of the medicine.

When should I test for pregnancy? What should I do about the doses already taken? Which acne treatments are suitable while pregnant or trying to conceive? What contraception and follow-up plan applies to me? Do I need referral to an obstetric or fetal-medicine team?