A member asked:

Doctor said i have a perianal fistula, he gave sulfamethoxazole and metronidazole to see if itd heal but pharmacy paper says not to take them together?

A doctor has provided 1 answer
Dr. Charles Gordon answered

Specializes in Adolescent Medicine

Not so!: There is no listed drug interaction between the 2 drugs you mentioned. The major drug interaction for metronidazole is ethyl alcohol. Don't even think of of taking a whif of alcohol while your on it. You will start pickling your liver in formaldehyde (embalming fluid).

Answered 7/10/2016

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