Calcium carbimide, sold as the citrate salt under the trade name Temposil, is an alcohol sensitizing agent. Its effects are similar to the drug disulfiram (Antabuse) in that it interferes with the normal metabolism of alcohol by preventing the breakdown of the metabolic byproduct acetaldehyde. The result is that when alcohol is consumed by users of calcium carbimide, they experience severe reactions which include symptoms such as sweating, difficulty breathing, rapid heartbeat, rash, nausea and vomiting, and headache.
A recent 9-year study found that incorporation of supervised carbimide and the similar drug, disulfiram, into a comprehensive treatment program resulted in an abstinence rate of over 50%.