Shock, anaphylaxis symptoms; leukopenia (rare), thrombocytopenia; liver dysfunction (rare), jaundice. Hypersensitivity; numbness, dizziness, drowsiness; dry mouth, constipation, rarely bloating, diarrhea, nausea, vomiting, heartburn, abdominal pain, belching, taste abnormalities; rise in AST, ALT, γ-GTP, ALP or fever, rash; leukocyte sequestration (sometimes), rise in lymphocytes, reduction of granulocytopenia; gynecomastia, galactorrhea, palpitations, facial flushing, numbness of the tongue, cough, shortness of breath, hair loss, menstrual disorders or elevated BUN (rare), swelling, foreign body sensation in the pharynx may occur.