Zydus Cadila on Wednesday launched Ramelteon tablets, used to treat insomnia, in the US market. In a BSE filing, Zydus Cadila announced the "launch of Ramelteon tablets, 8 mg upon receiving the final approval from the USFDA. Ramelteon is a sedative, also called a hypnotic". Ramelteon is used to treat insomnia that is associated with having trouble falling asleep. Zydus Cadila said the drug will be manufactured at the groups formulations manufacturing facility at SEZ, Ahmedabad.