Potentiation of vascular insufficiency; Severe cardiovascular disease; Contraindicated under age 2
Interactions
Antihypertensives / cardiac glycosides; CNS depressants; MAO inhibitors
Brand questions use only name pairings verified against the linked product source. Unverified pairings are withheld from these questions; the other study content remains available.
Label date: 20260909 · For learning, not clinical decisions. US label and brand information; always consult the current source.
Source snapshot checked: 2026-10-21. The source document and selected fields were compared. The complete card has not had an independent clinical review.
Mechanism: Non-selective beta1/beta2 adrenergic receptor blocker without significant intrinsic sympathomimetic or membrane-stabilizing activity.
On both cards: Used for — Open-angle glaucoma; Ocular hypertension
Only on the Timolol maleate (ophthalmic) card: Common side effects — Burning / stinging on instillation; Headache; Asthenia / fatigue; Bradycardia · Warnings — Contraindicated with bronchial asthma or its history, or severe COPD; Contraindicated with sinus bradycardia or second-/third-degree AV block; Overt cardiac failure and cardiogenic shock are contraindications · Interactions — Oral beta-blockers; Calcium antagonists; CYP2D6 inhibitors
Mechanism: Inhibits carbonic anhydrase (mainly CA-II) in the eye, lowering intraocular pressure.
On both cards: Used for — Open-angle glaucoma; Ocular hypertension
Only on the Dorzolamide card: Common side effects — Ocular burning / stinging; Bitter taste; Superficial punctate keratitis; Ocular allergic reaction · Warnings — Sulfonamide hypersensitivity; Bacterial keratitis; Corneal endothelium effects · Interactions — Oral carbonic anhydrase inhibitors
An item counts as shared only when both cards use the same wording. If a card does not list an item, that is not a statement that the effect never occurs.