Related Experiment Videos
Timolol maleate: efficacy and safety
Archives of Ophthalmology (Chicago, Ill. : 1960)
|April 1, 1979
Summary
Timolol maleate ophthalmic solution effectively lowers intraocular pressure (IOP) at various concentrations. Lower concentrations, such as 0.1% to 0.5% timolol, are safe and effective for reducing IOP.
Area of Science:
- Ophthalmology
- Pharmacology
Background:
- Elevated intraocular pressure (IOP) is a significant risk factor for glaucoma.
- Effective hypotensive agents are crucial for managing IOP and preventing optic nerve damage.
Purpose of the Study:
- To evaluate the efficacy and safety of different concentrations of timolol maleate ophthalmic solution in lowering IOP.
- To compare the IOP-lowering effects of timolol maleate with placebo.
Main Methods:
- A randomized, double-masked clinical trial was conducted.
- Participants received various concentrations of timolol maleate ophthalmic solution (0.1%, 0.25%, 0.5%, 1.0%) or a placebo.
- Intraocular pressure, blood pressure, visual acuity, pupillary diameter, and pulse rate were monitored.
Main Results:
- All tested concentrations of timolol maleate effectively reduced intraocular pressure compared to placebo.
- Timolol maleate 0.5% demonstrated comparable IOP reduction to the 1.0% concentration.
- No significant changes in blood pressure, visual acuity, or pupillary diameter were observed.
- A dose-dependent decrease in resting pulse rate was noted with increasing timolol concentrations.
Conclusions:
- Topical timolol maleate at concentrations of 0.1% to 0.5%, administered twice daily, is an effective and safe agent for reducing intraocular pressure.
- Timolol maleate presents a favorable safety profile with no significant ocular or systemic side effects reported at the tested concentrations.