Thanks for the query.
I understand your concern.
The half-life of Welbutrine and Prestiq ranges from 10 to 15 hours and the elimination time will be usually 5 times to the half life, so it may take around one week for complete elimination of the drug from the system.
Better option is, after stopping the drugs in present menstrual cycle, from next menstrual cycle on words you can plan for pregnancy.
But before stopping the drug, please take your doctor's suggestion.
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