brimonidine/timolol vs timolol
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Side-by-side comparison of brimonidine/timolol and timolol. Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.
minor Known Drug Interaction
7.7 CYP2D6 Inhibitors Potentiated systemic beta-blockade (e.g., decreased heart rate, depression) has been reported during combined treatment with CYP2D6 inhibitors (e.g., quinidine, SSRIs) and timolol.
Combigan
Timoptic
Combigan eye drops contain two medicines that lower pressure in the eye. It is used to treat glaucoma or high pressure in the eye.
No summary available.
Combigan is used to lower high pressure in your eyes. This medicine is for people with glaucoma or ocular hypertension. It is for those who need more help than one medicine can provide. Combigan helps lower the pressure in your eye.
Information not available.
Combigan has two drugs that work together to lower eye pressure. Brimonidine lowers fluid production in the eye and increases fluid drainage. Timolol reduces fluid production.
Information not available.
- • Allergic conjunctivitis (eye allergy)
- • Conjunctival folliculosis (bumps on the eye)
- • Conjunctival hyperemia (redness of the eye)
- • Eye itching
- • Eye burning
- • Bitter, sour, or unusual taste
- • Eye burning or stinging
- • Redness of the eye
- • Blurred vision
- • Eye itching
- The medicine is not working 2,756
- Allergic reaction 440
- Tiredness 240
- Eye pressure increased 224
- Feeling dizzy 183
- Treatment Failure 3,042
- Fatigue 470
- Hypersensitivity 456
- Dizziness 401
- Diarrhoea 396
Combigan contains timolol, which can cause serious heart and breathing problems. These problems can be more likely if you have asthma, COPD, or heart failure. Tell your doctor if you have any of these conditions.
No specific warnings noted.
Animal studies suggest possible risk to the fetus. Tell your doctor if you are pregnant or plan to become pregnant. Timolol can pass into breast milk, so talk to your doctor about breastfeeding while using Combigan.
No pregnancy information available.
How to Read This brimonidine/timolol vs timolol Comparison
brimonidine/timolol is classified in the Alpha-2 Agonist / Beta-Blocker Combination drug class, while timolol sits within the Beta-Blocker (Ophthalmic) class. Drugs from different classes work through distinct mechanisms, so a head-to-head comparison illustrates trade-offs rather than equivalence. Both drugs are prescription-only, so a licensed provider must authorize use.
Adverse event totals above are pulled from the FDA's Adverse Event Reporting System (FAERS). For these top-ranked reactions alone, brimonidine/timolol has 3,843 submissions while timolol has 4,765. Those figures reflect cumulative reporting volume, not per-patient risk, so older, widely dispensed drugs typically look worse on count alone. These two drugs have a known minor interaction flagged in FDA labeling, attributed to certain medicines can block the body from breaking down timolol. this can lead to higher levels of the drug in your system, which may cause a slow heart rate or feelings of depression.. Serious warnings, pregnancy guidance, and contraindications can differ even when indications overlap.
A table cannot represent individual circumstances. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This registry does not provide medical, treatment, substitution, or medication-change directions for brimonidine/timolol or timolol.
Registry boundary: This comparison displays source-record fields and does not provide individualized medical direction.