| abstract |
A pharmaceutical composition contains, as the active ingredient, a dibenz [b,e] oxepin derivative represented by the following formula:n wherein R 1 represents an alkyl group having 1 to 5 carbon atoms or a halogen atom; R 2 and R 3 may be same or different group and each represent an alkyl group having 1 to 5 carbon atoms and the pharmaceutically acceptable acid addition salts thereof. |