Pending review by a pediatrician or lactation consultant.
This is what moms told each other, not medical advice. If you're worried about your baby or yourself, call your pediatrician or doctor.
Mom Hack
Sudafed for drying up milk
Moms who are weaning or switching to formula mention it a lot.
86moms who mentioned Sudafed to dry up milk
Most often in r/breastfeeding (57) and r/FormulaFeeders (22).
Source: distinct authors, Reddit Oct 2025 to Oct 2026, plus What to Expect and BabyCenter forums. From the 2AM Finds research set (theme_counts_final.tsv).
What moms do
- 1
Moms weaning, or formula feeding from day one, use the Sudafed kept behind the pharmacy counter (pseudoephedrine). Several say their OB suggested it.
- 2
They pair it with the rest of the drying-up kit: a snug sports bra day and night, cold packs or cabbage leaves, and expressing only enough to ease the pressure.
- 3
Results vary a lot. Some say they were dry in a few days. Others saw little change after a week.
- 4
It doesn't sit well with everyone. Moms mention nausea, anxiety and trouble sleeping, and some can't take it because they're pregnant or have a health condition. Ask your doctor or pharmacist first.
- 5
Still nursing and fighting a cold? This is why moms warn each other to check cold medicine labels for pseudoephedrine.
Why moms swear by it
When milk comes in and you aren't nursing, or you're done, engorgement hurts. Moms reach for it because it's easy to get and works alongside the other tricks. It's a medication, so it's a conversation with your doctor, not something to try blind.
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