Usually, Metronidazole starts working within 1 hour of its ingestion. However, it may take around 2-3 days to make you feel better while taking Metronidazole. If you do not experience any significant reduction in your symptoms, consult your doctor.

No, avoid drinking alcohol while taking Metronidazole. Moreover, you should avoid alcohol even after 3 days of finishing the complete course. Drinking alcohol can cause an unpleasant reaction (disulfiram like reaction) with symptoms such as stomach pain, nausea, vomiting, headache, flushing or redness of the face.

Yes, Metronidazole may cause a temporary metallic taste. This metallic taste can be reduced by staying hydrated, brushing teeth after the meals and chewing sugar-free gum or mints.

If you have taken Metronidazole in excess (more than the recommended dose), immediately contact your doctor or report to the nearest hospital. Overdose of Metronidazole may cause loss of appetite, metallic taste, headache, dizziness, insomnia or drowsiness.

No, do not stop taking Metronidazole and complete the full course of treatment even if you feel better. Your symptoms may improve before the infection is completely cured. Hence, if you stop taking the medicine before completing the course, your infection may come back. Consult your doctor before you stop taking Metronidazole and follow their advice.

Inform your doctor if you did not feel better after completing the full course of treatment. Also, inform him/her if your symptoms are getting worse during the treatment.