It was developed as an appetite suppressant by McNeil Laboratories in the 1950s.

McNeil Laboratories began with the purchase of a pharmacy in the area in 1879 by the company's namesake.

Roth was also principal consultant to McNeil Laboratories.

In 1955, McNeil Laboratories introduced Tylenol Elixir for children, which contained paracetamol as its sole active ingredient.

After completing college in 1938, he joined McNeil Laboratories full-time, coming on board to what had been the family business for three generations having been founded in 1879.

It was developed by Johnson & Johnson's McNeil Laboratories.

In 1953 McNeil Laboratories introduced Algoson, a preparation containing acetaminophen together with sodium butabarbital, a sedative.

In 1955, McNeil Laboratories introduced Tylenol Elixir for children, containing only acetaminophen.

Fenobam is an imidazole derivative developed by McNeil Laboratories in the late 1970s as a novel anxiolytic drug with an at-the-time-unidentified molecular target in the brain.

It was developed by a team at McNeil Laboratories in the 1970s.