>10%: Cardiovascular: Hypotension accompanied by flushing.
Dermatologic: Erythematous rash on face and upper body (red neck or red man syndrome).
1% to 10%: Central nervous system: Chills, drug fever.
Hematologic: Eosinophilia.
<1% (limited to important or life-threatening): Ototoxicity, renal failure, thrombocytopenia.