What are the possible side effects of bismuth subsalicylate, metronidazole, and tetracycline (Helidac)?
If you experience any of the following serious side effects, stop taking bismuth subsalicylate, metronidazole, and tetracycline and seek emergency medical attention: • an allergic reaction (difficulty breathing; closing of your throat; swelling of your lips, tongue, or face; or hives); • a severe headache; • vision changes; • confusion; • liver damage (yellowing of the skin or eyes, nausea, abdominal pain or discomfort, unusual bleeding or bruising, severe fatigue); • blood problems (fever, fatigue, easy bruising or bleeding); • severe diarrhea; or • seizures. If you experience any of the following less serious side effects, continue to take your medication and talk your doctor. • nausea, vomiting, or diarrhea; • metallic taste in mouth; • sensitivity to the sun; • dark “furry”; tongue, black tongue, or swollen tongue; • vaginal yeast infection; • numbness or tingling; • dizziness or decreased co-ordination; • decreased appetite; or • dark stools. Side effects other than those listed h
