 [ Symptoms ] i took tablet metronidazole 5 hours after i had taken 20 ml of red wine what can i do now [ Disease ] hi metronidazole and alcohol interaction causes disulfiram like reaction this leads to nausea vomiting tachycardia increased heartbeat shortness of breath etc if you had consumed red wine 5 hours before the drug intake then it is all right there is nothing much to fear you may have nausea and vomiting but that would be minimal and temporary 5 hours is ample time for the wine to be metabolized in the body for further follow up consult a family physician online   > <link>