Taking ibuprofen in less than 24h can not breastfeeding.
Ibuprofen is a non-steroidal antipyretic and anti-inflammatory drug, the mechanism of action is to inhibit the synthesis of prostaglandins, so as to play the role of antipyretic, analgesic and other effects, used to alleviate mild to moderate pain, such as headache, arthralgia and other symptoms.
Ibuprofen can be secreted through breast milk, at the same time the instructions also clearly pointed out that breastfeeding women prohibited ibuprofen capsules, which is metabolized in the liver, half-life of 1.8 ~ 2 hours, usually within 24 hours all excreted, so breastfeeding women taking ibuprofen capsules can not be breast-feeding immediately after taking at least not within 24h.
The use of medication during lactation is recommended under the guidance of a doctor to avoid adverse consequences.