Tramadol and its metabolite, O-desmethyltramadol (M1), are existing in human milk. There's no info on the consequences of the drug to the breastfed infant or the effects from the drug on milk creation. The M1 metabolite is more powerful than tramadol in mu opioid receptor binding [see Clinical Pharmacology (12)]. https://dihydrocodeine-30mg16936.azzablog.com/37660737/facts-about-tramadol-100mg-tablet-price-revealed