Medication·Interactions·Reviewed June 9, 2026
Timolol Ophthalmic interactions.
Timolol Ophthalmic has 5 documented interactions in the NutriStack database. The full interaction list is below. None of this is a substitute for your prescriber's advice.
Timolol Ophthalmic at a glance.
A quick, data-grounded summary. The full tables are below.
Timolol Ophthalmic has 5 documented interactions in the NutriStack database. The full interaction list is below. None of this is a substitute for your prescriber's advice.
Substances that interact with timolol ophthalmic.
Every supplement and medication in the NutriStack database with a documented interaction with this drug, highest-severity first. Open any pair for the mechanism and sources.
| Substance | Interaction | What happens |
|---|---|---|
| Alcohol | Caution | Timolol eye drops can be systemically absorbed and produce beta-blocker effects such as slower heart rate, lower blood pressure, dizziness, or... details → |
| L-Arginine | Caution | L-Arginine can modestly lower blood pressure through nitric-oxide-mediated vasodilation. Timolol eye drops can be systemically absorbed and lower... details → |
| L-Citrulline | Caution | L-Citrulline increases arginine availability and can modestly lower blood pressure. Timolol eye drops can reach systemic circulation and produce... details → |
| Melatonin | Caution | Systemic absorption of timolol eye drops can blunt nocturnal melatonin production by blocking beta1 receptors on the pineal gland, similar to oral... |
| Coenzyme Q10 | Synergy | Timolol eye drops can produce systemic beta-blockade through nasolacrimal absorption, especially in older adults. Like systemic beta-blockers,... |
The full timolol ophthalmic profile.
Uses, typical dosing, side effects, and the cited evidence for this medication.
Common timolol ophthalmic questions.
Quick answers drawn from the tables above.
What interacts with Timolol Ophthalmic?
In the NutriStack database, Timolol Ophthalmic has 5 documented interactions. The most notable include Alcohol, L-Arginine, L-Citrulline, Melatonin, and Coenzyme Q10. Check any specific combination before taking it and confirm with your prescriber.
Is it safe to take Alcohol with Timolol Ophthalmic?
NutriStack classifies the Alcohol and Timolol Ophthalmic pairing as caution: Timolol eye drops can be systemically absorbed and produce beta-blocker effects such as slower heart rate, lower blood pressure, dizziness, or syncope. Alcohol can... Limit alcohol when starting timolol eye drops and avoid drinking if you have dizziness, fainting, or a very low pulse. Use punctal occlusion after... Always confirm with your prescriber.
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