GI disturbances, mild neutropenia, abnormal liver function, allergic reactions, hearing impairment. Frequently in HIV patients: Diarrhea, abdominal pain, nausea, loose stools, flatulence, vomiting, dyspepsia, rash, pruritus & arthralgia. Asthenia, severe cutaneous adverse reactions including Stevens-Johnson syndrome, toxic epidermal necrolysis, drug reaction w/ eosinophilia & systemic symptoms & acute generalized exanthematous pustulosis.