| abstract |
[PROBLEMS] To provide a method for stably maintaining the viscosity of an ophthalmic composition containing a cellulose derivative, a polyvinyl compound or a salt thereof. Another object of the present invention is to provide an ophthalmic composition in which a viscosity is stably maintained by blending xanthines with a cellulose derivative, a polyvinyl compound or a salt thereof. An ophthalmic composition containing a xanthine (caffeine, theophylline, theobromine, proxyphyrin, pentoxifylline, etc.) and aspartic acid or a salt thereof to contain a cellulose derivative, a polyvinyl compound or a salt thereof. Can be stably maintained. |