ISTALOL vs METOPROLOL TARTRATE

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 17, 2026·How we rate

Possible drug interaction. ISTALOL and METOPROLOL TARTRATE are different prescription medicines. Combining or switching between them can cause interactions — talk to a pharmacist or prescriber before making changes. This page is not medical advice.

Attribute	ISTALOL	METOPROLOL TARTRATE
Rating	New	60/100
Pharmacy pays	$1.06 /mL	~$0.58 /30
Type	RX	RX
Active ingredient	TIMOLOL MALEATE	METOPROLOL TARTRATE
Manufacturer	Bausch and Lomb	Hospira
Dosage forms	Drops	Injectable, Solution, Tablet
Drug class	Beta-Adrenergic Blocker	Beta-Adrenergic Blocker
Boxed warning	None	None
Half-life	—	about 3 to 4 hours
Treats	Angina Pectoris, Open-Angle Glaucoma, Heart Failure	Angina Pectoris, Atrial Fibrillation, Atrial Flutter

istalol metoprolol tartrate

Rating

New

60/100

Pharmacy pays

$1.06 /mL

~$0.58 /30

Type

Active ingredient

TIMOLOL MALEATE

METOPROLOL TARTRATE

Manufacturer

Bausch and Lomb

Hospira

Dosage forms

Drops

Injectable, Solution, Tablet

Drug class

Beta-Adrenergic Blocker

Boxed warning

None

Half-life

—

about 3 to 4 hours

Treats

Angina Pectoris, Open-Angle Glaucoma, Heart Failure

Angina Pectoris, Atrial Fibrillation, Atrial Flutter

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Frequently asked questions

What is the difference between Istalol and Metoprolol Tartrate?

Istalol contains Timolol Maleate, while Metoprolol Tartrate contains Metoprolol Tartrate — they have different active ingredients.

Ratings are based on FDA regulatory (recall-safety) data. This comparison is for general reference only — not medical advice. Always consult a licensed professional before choosing or switching a medication.