Diarrhea, nausea, vomiting, maculopapular rash, urticarial, eosinophilia, drug fever, slight decrease of neutrophil, reversible neutropenia (due to extended therapy), +ve result in Coomb's test, eosinophilia, temporary thrombocytopenia, hypoprothrombinemia, hemolytic anemia, headache, fever, inj pain, chills.