Tramadol
Relative Infant Dose (RID)
3.1%
✓ Verified
Milk-to-Plasma Ratio (M:P)
2.40
✓ Verified
What This Means
Tramadol transfers about 3.1% of the maternal dose through breast milk. This is generally considered acceptable, but discussing timing of doses with your healthcare provider may be helpful. The M:P ratio of 2.40 means the drug concentrates more in breast milk than in blood, meaning more may reach your baby. Consider discussing timing (e.g., taking after a feeding) with your healthcare provider.
Important: This information is for educational purposes only. Always consult your healthcare provider before taking any medication while breastfeeding. Do not stop prescribed medications without medical advice.
Data source: LactMed NBK501260 (Dec 2025): RID 3.1% (average for both poor and ultrarapid metabolizers). • LactCheck by Benevolence Labs