BLOCADREN vs ISTALOL

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 23, 2026·How we rate

Attribute	BLOCADREN	ISTALOL
Rating	70/100	New
Pharmacy pays	$1.06 /mL	$1.06 /mL
Type	RX	RX
Active ingredient	TIMOLOL MALEATE	TIMOLOL MALEATE
Manufacturer	Merck	Bausch and Lomb
Dosage forms	Tablet	Drops
Drug class	Beta-Adrenergic Blocker	Beta-Adrenergic Blocker
Boxed warning	None	None
Treats	Angina Pectoris, Open-Angle Glaucoma, Heart Failure	Angina Pectoris, Open-Angle Glaucoma, Heart Failure

blocadren istalol

Rating

70/100

New

Pharmacy pays

$1.06 /mL

Type

Active ingredient

TIMOLOL MALEATE

Manufacturer

Merck

Bausch and Lomb

Dosage forms

Tablet

Drops

Drug class

Beta-Adrenergic Blocker

Boxed warning

None

Treats

Angina Pectoris, Open-Angle Glaucoma, Heart Failure

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Frequently asked questions

Which is cheaper, Blocadren or Istalol?

Pharmacies pay about the same to acquire either one — roughly $1.06 per ml, per the CMS NADAC survey. That is not what you will be charged: your price is set by your insurer and the pharmacy, not by what the drug cost them.

What is the difference between Blocadren and Istalol?

Both Blocadren and Istalol share the active ingredient Timolol Maleate.

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.