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A member asked:
How many days after sulfametazol antibiotic will my birth control be effective again?
A doctor has provided 1 answer
Give it a few days: I would wait about 3 days or so just to make sure the medication is completely out of your system. This all really depends on what your dosage is and how long you have been taking it. The half-life of this medication in your blood stream is about 9 hours so it would probably be a good idea to wait.
Answered 7/2/2013
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