Avoid Sudafed (pseudoephedrine) in the first trimester: ACOG recommends against it in the first 3 months. After that, some OBs allow brief use, but it is a provider call because it constricts blood vessels, raises blood pressure, and can reduce placental blood flow.
Anyone with hypertension or preeclampsia risk gets a firmer no. Two traps: shelf "Sudafed PE" is phenylephrine, a different drug with the same caution logic, and combo products bundle extra ingredients, so read the active-ingredient list, never the brand. The pregnancy-safe congestion toolkit: saline spray or rinse, humidifier, honey and warm fluids, rest, head elevation at night, and acetaminophen for headache or fever. Brutal, persistent congestion deserves a direct OB ask: they may approve pseudoephedrine after week 12, or steer you to a pregnancy-compatible antihistamine or nasal steroid spray instead.
What to do
Common questions
Can I take Sudafed while pregnant?
Pseudoephedrine (the active ingredient in regular Sudafed) is one of the few over-the-counter cold medicines with a specific pregnancy caution: ACOG does not recommend it in the first 3 months of pregnancy, per MotherToBaby's summary, because of a possible small increase in certain abdominal-wall birth defects with early use. After the first trimester, many OBs allow occasional short-term use, but that is a call your own provider should make, because pseudoephedrine also constricts blood vessels, raises blood pressure, and can reduce blood flow to the placenta, so anyone with high blood pressure, preeclampsia risk, or placental concerns gets a firmer no. Two practical traps: "Sudafed" on the shelf is often Sudafed PE, which is phenylephrine, a different decongestant with its own thin evidence base and the same first-trimester-caution logic; and combination cold products (Sudafed plus antihistamine, or multi-symptom formulas) bundle ingredients you may not want, so read the active-ingredient list, not the brand name. The safer congestion toolkit in pregnancy: saline nasal spray or rinse, a humidifier, honey and warm fluids (pasteurized), rest, and elevating your head at night; acetaminophen covers the headache or fever piece. If congestion is brutal and persistent, ask your OB directly; there are situations where they will green-light pseudoephedrine after week 12, and situations (rhinitis of pregnancy, allergies) where they would rather switch you to a pregnancy-compatible antihistamine or nasal steroid spray instead.