CNS: dizziness, drowsiness, lethargy, hangover, headache, ataxia, slurred speech, forgetfulness, confusion, mental depression, rhythmic myoclonic jerking in pre-term infants, paradoxical excitation.

EENT: blurred vision.

Resp: respiratory depression.

CV: rapid IV use only—APNEA, CARDIAC ARREST, bradycardia, hypotension.

GI: constipation, diarrhea, nausea, vomiting, weight gain (unusual).

Derm: rashes.

Misc: physical dependence, psychological dependence, tolerance.

*CAPITALS indicates life-threatening.
*italic indicates most frequent.