"A new consumer-friendly form ( is now available for making reports to MedWatch, the Food and Drug Administration's (FDA) on-line system for collecting information about serious problems with drugs, medical devices and other FDA-"...
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:
Respiratory: Hiccups, pharyngitis
Skin/Appendages: Application site reaction, rash
Special Senses: Abnormal smell, speech/visual disturbances, transient blurred vision, roar in ear
Read the Antizol (fomepizole) Side Effects Center for a complete guide to possible side effects
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.
Additional Antizol Information
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.
Find out what women really need.