| abstract |
(±) -6-chloro-3,4-dihydro-4-methyl-3-oxo-N-3-quinuclidinyl-2H-1, characterized in that the present invention is formulated with a stabilizer against light. A stabilized injectable agent and a stabilizing method comprising 4-benzoxazine-8-carboxamide monohydrochloride as an active ingredient.n n n One or two or more light stabilizers selected from sulfites, sulfites, ascorbic acids, L-cysteine or acid addition salts thereof, thioglycolic acid or metal salts thereof, ethylenediamine, salicylic acid or metal salts thereof, or phenols or derivatives thereof Coloring prevention appears by compounding. |