Prescription items are NON-RETURNABLE and NON REFUNDABLE Timolol 0.5 percent 10 ml Timolol Maleate Opthalmic Solution 0.5% may be used in the treatment of glaucoma. Ingredients Each ml of Timolol Maleate Opthalmic Solution 0.5% contains 6.8 mg Timolol Maleate. Dosage Recommended dosage may be 1 drop in the eye every 12 hours. 012TIM-5X10