Answer
May 19, 2026 - 11:17 AM
Serious side effects include permanent teeth discoloration (especially in children), hyperpigmentation of skin or other tissues, signs of Clostridium difficile infection (such as diarrhea or bloody stools), immune reactions (joint pain, fever, rash, weakness), benign intracranial hypertension (blurred vision, vision loss, headaches), and allergic reactions (difficulty breathing, hives, swelling). Being aware of these risks ensures users can act quickly if they experience severe symptoms, improving safety.
