what causes taste of metal or sulfur
Treatment side effects. A wide range of medication can cause a metallic taste in the mouth as a side effect. Examples are: 1  antibiotics (such as metronidazole). 2  antifungal medicine. 3  antihistamines. 4  chemotherapy. 5  diuretics. 6  steroid medication. 7  nicotine patches.
It's also fairly common to crave certain foods, or go off certain foods, and have a heightened sense of smell. Learn more about the signs and symptoms of pregnancy. A cold, sinus infection, runny nose from allergies (allergic rhinitis) or nasal polyps can all cause a metallic taste in the mouth.