<unk>  (INN), also known as<unk> ne, is an antihistamine sold under the trade names Covatine, Covatix, and Suvren which is used as a sedative and anxiolytic. The structure is related to diphenhydramine. A 2004 study suggested<unk>  may be helpful in preventing benzodiazepine withdrawal syndrome in people discontinuing benzodiazepine treatment. In addition to its actions as an antihistamine,<unk> ne has been found to act as a 5-HT2C receptor antagonist and σ1 receptor and D3 receptor agonist. It produces antidepressant-like effects in rats. However,<unk> ne is unique among antidepressant-like drugs in that it increases brain-derived neurotrophic factor (BDNF) levels in the hypothalamus but not in the frontal cortex or hippocampus. This unique action may be related to its ability to attenuate stress-induced anhedonia and corticotropin-releasing factor (CRF) signaling in the hypothalamus.
Captodiame
Haptocorrin
Renin
Aldrin
Vasopressin
Vasopressin 
Coricidin
Tetanospasmin