An excellent example of such confusion is the present day remembrance of George Washingtonâs Birthday. The third Monday of February has legally been designated by the United Statesâ Congress as a day to remember the birthday of George Washington and some calendars will accurately designate it so.
The text above is a follow-up to ... -----Question-----. after taking a 80mg dose of methodone how long does it take for the effects to reach there peak or there maximum effect. -----Answer-----. Dear Charles, It takes about 4 hours for methadone to reach its peak concentration following oral administration. Some relief of pain occurs after 30 to 60 minutes and the duration of action is initially 6 to 8 hours.
Rating Newest Oldest. Best Answer: Oral meds take longer than 15 minutes to start working (or rather, to FEEL them start working). More like at least a half hour, up to an hour, depending on your digestive system, what's in your stomach, etc. Onset is 20 minutes, peak is 30-60 minutes.Source(s): RN; Lippincott's Nursing Drug Guide.t takes longer if they have worn off to take effect. Usually about 30 mins or longer if the pain is severe. But once it kicks in be sure not to miss the next dose.