The drug is still available today, though not much used for alcoholism except in Denmark, where it's widely prescribed.
This is not quite true. Disulfiram is currently used in Russia (and other former USSR countries) to treat alcohol addiction. (Random clinic website that offers disulfiram implants for ~$200.)
Also in the 90s disulfiram apparently was used to treat alcohol addiction in a quite questionable form:
Coding (kodirovanie) is a catch-all term for various Russian alternative therapeutic methods used to treat addictions, in which the therapist attempts to scare patients into abstinence from a substance they are addicted to by convincing them that they will be harmed or killed if they use it again.