Drug Comparison

Citalopram vs. Timolol Maleate

Compare Citalopram and Timolol Maleate: mechanism of action, indications, side effects, cost, and which may be right for you.

Quick Comparison

CategoryCitalopramTimolol Maleate
Drug ClassSSRIs (Selective Serotonin Reuptake Inhibitors)Beta-Blockers
Rx StatusRxRx
Generic AvailableNoNo
Typical Cost$4–$25/month$50–$150/month

Citalopram Overview

Citalopram is a medication called a selective serotonin reuptake inhibitor (SSRI) used to treat major depressive disorder in adults. It works by helping to restore the balance of a natural substance called serotonin in the brain, which can improve mood and feelings of well-being.

Full Citalopram guide →

Timolol Maleate Overview

Timolol Maleate is an eye drop medication used to treat high pressure inside the eye. It works by helping to reduce the amount of fluid your eye produces, which in turn lowers the pressure. This medication is primarily prescribed for conditions like ocular hypertension and open-angle glaucoma to help protect your vision.

Full Timolol Maleate guide →

How Each Drug Works

Citalopram

The mechanism of action of citalopram is unclear, but is presumed to be related to potentiation of serotonergic activity in the central nervous system (CNS) resulting from its inhibition of CNS neuronal reuptake of serotonin (5-HT).

Timolol Maleate

Mechanism of Action Timolol maleate is a beta 1 and beta 2 (non-selective) adrenergic receptor blocking agent that does not have significant intrinsic sympathomimetic, direct myocardial depressant, or local anesthetic (membrane-stabilizing) activity. Timolol Maleate Ophthalmic Gel Forming Solution, when applied topically on the eye, has the action of reducing elevated, as well as normal intraocular pressure, whether or not accompanied by glaucoma. Elevated intraocular pressure is a major risk fa…

Approved Uses (Indications)

Citalopram

Citalopram is indicated for the treatment of major depressive disorder (MDD) in adults [see Clinical Studies ] . Citalopram is a selective serotonin reuptake inhibitor (SSRI) indicated for the treatment of major depressive disorder (MDD) in adults .

Timolol Maleate

INDICATIONS AND USAGE Timolol Maleate Ophthalmic Gel Forming Solution is indicated in the treatment of elevated intraocular pressure in patients with ocular hypertension or open-angle glaucoma.

Side Effects

Citalopram

Timolol Maleate

Cost Comparison

Citalopram

$4–$25/month

As a widely available generic, Citalopram is very affordable. Using discount cards like GoodRx can further reduce the cost to just a few dollars per month.

Timolol Maleate

$50–$150/month

While a generic version of Timolol Maleate eye drops is available, the brand name 'Timolol Maleate' (often referring to specific formulations or strengths) might be more expensive. Patients can often find significant savings by using discount cards or manufacturer coupons, especially if a specific brand formulation is prescribed.

Drug Interaction: Moderate

Citalopram can inhibit the metabolism of timolol, potentially increasing timolol plasma concentrations and enhancing its beta-blocking effects. This can lead to an increased risk of bradycardia, hypotension, and other systemic beta-blocker adverse effects, especially given timolol's systemic absorption even from ophthalmic administration.

Mechanism: Citalopram is a moderate inhibitor of CYP2D6, which is involved in the metabolism of timolol. Inhibition of timolol's metabolism by citalopram can lead to elevated plasma levels of timolol. Additionally, both drugs can independently cause bradycardia, leading to an additive pharmacodynamic effect.

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Medical Disclaimer

The information on RxGuide is intended for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician, pharmacist, or other qualified health provider with any questions you may have regarding a medical condition or medication. Never disregard professional medical advice or delay in seeking it because of something you have read on this website.