106351-79-5

Butyryltimolol, an effective precursor of Timolol, improves the corneal penetration of Timolol[1]. Butyryltimolol is a β-adrenergic blocker[2].

β adrenergic receptor

[1] Chang SC, et al. Relative effectiveness of prodrug and viscous solution approaches in maximizing the ratio of ocular to systemic absorption of topically applied timolol. Exp Eye Res. 1988 Jan;46(1):59-69. DOI:10.1016/s0014-4835(88)80093-9
[2] Potter DE, et al. Ocular and cardiac beta-antagonism by timolol prodrugs, timolol and levobunolol. Curr Eye Res. 1988 Aug;7(8):755-9. DOI:10.3109/02713688809033206