A client is being treated with metronidazole (Flagyl) for an intestinal parasitic infection. When instructing the client about this drug, the nurse should caution about the possibility of which...

A client is being treated with metronidazole (Flagyl) for an intestinal parasitic infection. When instructing the client about this drug, the nurse should caution about the possibility of which adverse reaction?

1. Flatus and intestinal bloating

2. Halitosis

3. Unpleasant metallic taste

4. Alopecia