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Antizol

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Antizol

Antizol

SIDE EFFECTS

The most frequent adverse events reported as drug-related or unknown relationship to study drug in the 78 patients and 63 normal volunteers who received Antizol® (fomepizole) Injection were headache (14%), nausea (11%), and dizziness, increased drowsiness, and bad taste/metallic taste (6% each). All other adverse events in this population were reported in approximately 3% or fewer of those receiving Antizol (fomepizole) and were as follows:

Body as a Whole: Abdominal pain, fever, multiorgan system failure, pain during Antizol (fomepizole) injection, inflammation at injection site, lumbalgia/backache, hangover

Cardiovascular: Sinus bradycardia/bradycardia, phlebosclerosis, tachycardia, phlebitis, shock, hypotension

Gastrointestinal: Vomiting, diarrhea, dyspepsia, heartburn, decreased appetite, transient transaminitis

Hemic/Lymphatic: Eosinophilia/hypereosinophilia, lymphangitis, disseminated intravascular coagulation, anemia

Nervous: Lightheadedness, seizure, agitation, feeling drunk, facial flush, vertigo, nystagmus, anxiety, "felt strange", decreased environmental awareness

Respiratory: Hiccups, pharyngitis

Skin/Appendages: Application site reaction, rash

Special Senses: Abnormal smell, speech/visual disturbances, transient blurred vision, roar in ear

Urogenital: Anuria

Read the Antizol (fomepizole) Side Effects Center for a complete guide to possible side effects

DRUG INTERACTIONS

Oral doses of Antizol (fomepizole) (10-20 mg/kg), via alcohol dehydrogenase inhibition, significantly reduced the rate of elimination of ethanol (by approximately 40%) given to healthy volunteers in moderate doses. Similarly, ethanol decreased the rate of elimination of Antizol (fomepizole) (by approximately 50%) by the same mechanism.

Reciprocal interactions may occur with concomitant use of Antizol (fomepizole) and drugs that increase or inhibit the cytochrome P450 system (e.g., phenytoin, carbamazepine, cimetidine, ketoconazole), though this has not been studied.

Last reviewed on RxList: 11/6/2008
This monograph has been modified to include the generic and brand name in many instances.

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Report Problems to the Food and Drug Administration

 

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.


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