[{"from": "human", "value": "Describe this molecule. [C][N][C][=Branch2][Ring1][Branch1][=C][C][=Branch1][=Branch2][=N][C][=Branch1][Ring2][=N][Ring1][Branch1][Cl][N][Branch1][Branch1][C][Ring1][#Branch2][=O][C][O-1].[C][NH1+1][Branch1][C][C][C][C][O][C][Branch1][=Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=C][C][=C][C][=C][Ring1][=Branch1]"}, {"from": "gpt", "value": "The molecule is the diphenhydramine salt of 8-chlorotheophylline. Its effects are similar to those of diphenhydramine, but it is less potent. It was thought that by combining the antiemetic effects of diphenhydramine with the mild stimulant effects of 8-chlorotheophyline, the extreme drowsiness induced by the former would be mitigated. However, the sedation caused by diphenhydramine is considerably stronger than the stimulation caused by 8-chlorotheophylline. Dimenhydrinate is used mainly as an antiemetic in the prevention and treatment of motion sickness. It has a role as a H1-receptor antagonist and an antiemetic. It contains a diphenhydramine and an 8-chlorotheophylline(1-)."}]