Tab: Anaphylaxis, angioedema, pruritus, rash, serum sickness-like reaction, urticaria, pseudomembranous colitis; hemolytic anemia, leukopenia, pancytopenia, thrombocytopenia, increased prothrombin time, hepatic impairment including hepatitis & cholestasis, jaundice, seizure, erythema multiforme, Stevens-Johnson syndrome, toxic epidermal necrolysis, renal dysfunction; diarrhea/loose, nausea/vomiting, transient elevation in AST, ALT & lactate dehydrogenase, eosinophilia, abdominal pain & cramps, flatulence, indigestion, headache, vaginitis, vulvar itch, hives, itch, dysuria, chills, chest pain, shortness of breath, mouth ulcers, swollen tongue, sleepiness, thirst, anorexia, +ve Coombs' test & mild to moderate hearing loss. Powd for inj: Glossitis, nausea, vomiting, gastric pyrosis, abdominal pain & diarrhea.