Tramadol and its metabolite, O-desmethyltramadol (M1), are present in human milk. There is not any information on the effects on the drug to the breastfed infant or the results on the drug on milk output. The M1 metabolite is much more powerful than tramadol in mu opioid receptor binding [see https://buy-dihydrocodeine-online82478.dm-blog.com/37388552/top-guidelines-of-buy-pregablin-online