 <s>[INST] Always assist with care, respect, and truth. Respond with utmost utility yet securely. Avoid harmful, unethical, prejudiced, or negative content. Ensure replies promote fairness and positivity. [/INST]  of drugs known as beta-blockers, and dorzolamide belongs to a class of drugs known as carbonic anhydrase inhibitors. How to use Dorzolamide-Timolol Drops Read the Patient Information Leaflet if available from your pharmacist before you start using timolol/dorzolamide and each time you get a refill. If you have any questions, ask your doctor or pharmacist. Use this medication in the affected eye(s) as directed by your doctor, usually one drop 2 times a day. To apply eye drops, wash your hands first. To avoid contamination, do not touch the dropper tip or let it touch your eye or any other surface. Some products contain a preservative that may be absorbed by contact lenses. If you are using a product with a preservative and you wear contact lenses, remove the lenses before using the eye drops. Wait at least 15 minutes before putting in your contact lenses. Tilt your head back, look upward and pull down the lower eyelid to make a pouch. Hold the dropper directly over your eye and place one drop in your eye. Look downward and gently close your eyes for 1 to 2 minutes. Place one finger at the corner of your eye (near the nose </s>