[{"from": "human", "value": "Please give me some details about this molecule. [C][N][Branch1][C][C][C][C][C][Branch1][N][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][Cl][C][=C][C][=C][C][=N][Ring1][=Branch1]"}, {"from": "gpt", "value": "The molecule is a histamine H1 antagonist used in allergic reactions, hay fever, rhinitis, urticaria, and asthma. It has also been used in veterinary applications. One of the most widely used of the classical antihistaminics, it generally causes less drowsiness and sedation than Promethazine. -- Pubchem; Chlorphenamine or chlorpheniramine, commonly marketed as its salt chlorphenamine maleate (Chlor- Trimeton, Piriton, Chlor- Tripolon), is a first generation antihistamine used in the prevention of the symptoms of allergic conditions such as rhinitis and urticaria.- wikipedia."}]