Tramadol and its metabolite, O-desmethyltramadol (M1), are existing in human milk. There's no info on the results from the drug on the breastfed infant or the consequences from the drug on milk production. The M1 metabolite is much more potent than tramadol in mu opioid receptor binding [see Medical Pharmacology https://buyzopicloneonline60358.thekatyblog.com/35857222/about-sleeping-tablets-zopiclone-7-5mg