Do all medicines pass into breast milk?

Do infants' health and age affect how medicines in breast milk may affect them?

Should I stop breastfeeding while taking medicine?

What medicines are safe to take while breastfeeding?

Pain relievers

Antimicrobial medications

Nasal allergy medicines

Antihistamines

Decongestants

Birth control

Digestive medicines

Medicines for depression or anxiety

Constipation medicines

Do I need my health care provider's OK ahead of time?

What if my baby has a reaction?