Antidotes are one of the most commonly seen medicines within a clinic, hospital or medikit. Each antidote unit is composed of an individually-packaged sterile hypodermic needle and syringe filled with a pre-measured amount of the specific anti-toxin, serum or other counteracting agent, each designed for a single use.

Mass-produced in the laboratories of medical supply corporations, each batch contains twenty antidote units, all with the same type of counteractive drug. While some companies focus on the production of specialized antidotes for the more rare cases, most suppliers offer the same list of antidote agents. Therefore, each hospital or medical bay often stock multiple batches of various antidote types. The stock on hand at each clinic varies, depending on the risk and possibility of needing to treat certain conditions.

Throughout the galaxy, millions of antidotes exist and are tracked by the "Galactic Counteractive and Anti-Toxin Drug Database" or "G-CATDD". This organization is responsible for keeping up-to-date information and usage specifications for all antidotes that are commercially produced. This highly advanced database is split into categories based on galactic location, type of antigen, and rarity. Thus allowing medical centers across the galaxy to properly prepare and stock for only the most relevant of illnesses and poisons. The G-CATDD is also responsible for keeping an active stock of antidotes for the rarest of agents and are able to distribute these from several regional centers.