Marked rise in BP.
Adrenaline should not be given to patients receiving β blockers.
Source: KDT 7e · p133
Beta Blocker · Ocular Hypotensive Agent
Carteolol is a non-selective beta-adrenergic receptor antagonist, blocking both "β1" and "β2" receptors. In ophthalmic use, its mechanism of action involves reducing aqueous humor secretion. This blockade leads to a decrease in intraocular pressure.
Marked rise in BP.
Adrenaline should not be given to patients receiving β blockers.
Source: KDT 7e · p133
Hyperkalaemia more likely.
Source: KDT 7e
Severe bradycardia.
Extreme caution advised if amiodarone is co-administered with sofosbuvir and a beta blocker.
Source: Harrison 22e · unknown
Drug interaction classified as: antagonism
Source: DDInter
Drug interaction classified as: antagonism
Source: DDInter
Drug interaction classified as: synergy
Source: DDInter
Drug interaction classified as: synergy
Source: DDInter
Drug interaction classified as: synergy
Source: DDInter
Increased propensity for AV block, severe bradycardia, and decreased left ventricular function.
Avoid concurrent administration. The concurrent administration of diltiazem with a beta blocker is contraindicated.
Source: DDInter
Drug interaction classified as: synergy
Source: DDInter
Drug interaction classified as: synergy
Source: DDInter
Drug interaction classified as: antagonism
Source: DDInter
Continue into a citation-backed clinical answer with the drug context already attached.
Sources: KD Tripathi 7e, Goodman & Gilman 14e, Katzung·Verified: 2026-05-10 · House clinical team