Aid-V

Aid-V is a drug featured in the Alternative Universe and in GangstaTale.

Just like strength-enhancing drugs and painkillers in real life, they reduce the consumer's feeling of physical pain and boosts their strength. An unique feature of this drug, is that it also makes the consumer sterile for some time. However, it is highly addictive and can be dangerous for the consumer's health.

The Alternative Universe
Aid-V was created by Elle Rexford, in order to improve the consumer's strength. She experimented the drug by herself, to avoid conflict. Elle stated that the results were successful, but devastating because she felt like vomiting afterwards. The drug was sold anyway and legal for consumption.

GangstaTale
Aid-V was created by Alphys, a scientist of the Royal Guard. It was designed to be for the Royal Guard soldiers usage only. Successful but devastating, Aid-V became a legal drug and was sold in the Underground until gangsters began to consume it. Since then, Azgore banished Aid-V from the store shelves and made it become illegal for consumption. It can still be found in the Underground and be consumed by Frisk.

References/ Trivia

 * Aid-V is very similar to the chem called psycho from the Fallout game series.