home > drugs a-z list > revex (nalmefene hydrochloride) drug center > revex (nalmefene hydrochloride) drug - overdosage and contraindications

Intravenous doses of up to 24 mg of nalmefene, administered to healthy volunteers in the absence of opioid agonists, produced no serious adverse reactions, severe signs or symptoms, or clinically significant laboratory abnormalities. As with all opioid antagonists, use in patients physically dependent on opioids can result in precipitated withdrawal reactions that may result in symptoms that require medical attention. Treatment of such cases should be symptomatic and supportive. Administration of large amounts of opioids to patients receiving opioid antagonists in an attempt to overcome a full blockade has resulted in adverse respiratory and circulatory reactions.

REVEX (nalmefene hydrochloride) is contraindicated in patients with a known hypersensitivity to the product.

Last reviewed on RxList: 5/11/2006
This monograph has been modified to include the generic and brand name in many instances.