What Is Propranolol XR?

Propranolol XR is the extended-release form of Propranolol, one of the most widely prescribed beta-blockers in the world. It belongs to a class of drugs called non-selective beta-adrenergic blockers, which means it blocks both beta-1 and beta-2 receptors in the body.

The "XR" stands for extended-release, meaning the capsule is designed to release the medication slowly throughout the day. This allows you to take it once daily instead of multiple times a day, which is more convenient and helps maintain steady drug levels in your bloodstream.

Brand-name versions include Inderal LA and InnoPran XL, though most patients take a generic version manufactured by companies like Teva, Ani Pharmaceuticals, Mylan (Viatris), Heritage Pharmaceuticals, and Par Pharmaceutical.

What Is Propranolol XR Used For?

Propranolol XR is FDA-approved for several conditions:

High Blood Pressure (Hypertension)

Propranolol XR lowers blood pressure by slowing the heart rate and reducing the force of each heartbeat. It's often used alone or in combination with other blood pressure medications.

Migraine Prevention

Propranolol XR is one of the most commonly prescribed medications for preventing migraines. It doesn't treat a migraine once it starts, but regular use can significantly reduce how often migraines occur. It's typically prescribed for people who experience frequent or severe migraines.

Essential Tremor

Essential tremor is a condition that causes involuntary shaking, most commonly in the hands. Propranolol XR can reduce the severity of tremors and improve daily functioning.

Angina (Chest Pain)

By reducing the heart's workload and oxygen demand, Propranolol XR helps prevent episodes of angina — chest pain caused by reduced blood flow to the heart.

Hypertrophic Subaortic Stenosis

This is a condition where the heart muscle becomes abnormally thick, making it harder for the heart to pump blood. Propranolol XR can help manage symptoms.

Off-Label Uses

Doctors also prescribe Propranolol XR off-label for:

• Performance anxiety — reducing physical symptoms like rapid heartbeat and trembling before public speaking or performances
• PTSD — helping manage certain symptoms of post-traumatic stress disorder
• Anxiety disorders — addressing physical manifestations of anxiety
• Portal hypertension — preventing variceal bleeding in patients with liver disease
• Thyrotoxicosis — managing symptoms of an overactive thyroid

To understand the science behind these uses, read our article on how Propranolol XR works.

Available Dosages

Propranolol XR comes in extended-release capsules in the following strengths:

• Inderal LA: 60 mg, 80 mg, 120 mg, 160 mg
• InnoPran XL: 80 mg, 120 mg

Your doctor will determine the right dose for you based on your condition, how you respond to the medication, and any other medications you're taking.

Typical Starting Doses

• Hypertension: 80 mg once daily, may increase up to 120–160 mg
• Migraine prevention: 80 mg once daily, may increase up to 160–240 mg
• Essential tremor: 80 mg once daily, may increase as needed
• Angina: 80 mg once daily, may increase to 160–320 mg

Important: Never change your dose without talking to your doctor first.

How to Take Propranolol XR

• Take it once daily at the same time each day
• Swallow the capsule whole — do not crush, chew, or open it
• You can take it with or without food, but be consistent
• If you miss a dose, take it as soon as you remember — unless it's almost time for your next dose. In that case, skip the missed dose and take your next dose as scheduled. Never take two doses at once.

Who Should NOT Take Propranolol XR?

Propranolol XR is not safe for everyone. It is contraindicated in people with:

• Asthma or severe COPD — Propranolol can cause bronchospasm (airway tightening)
• Sinus bradycardia or heart block greater than first degree — the medication can slow heart rate too much
• Cardiogenic shock
• Decompensated heart failure
• Known allergy to Propranolol

Always tell your doctor about your complete medical history before starting Propranolol XR. Be sure to mention if you have diabetes, as Propranolol can mask symptoms of low blood sugar.

Side Effects

Like all medications, Propranolol XR can cause side effects. Common ones include fatigue, dizziness, cold extremities, nausea, sleep disturbances, weight gain, and mood changes. Serious side effects are less common but include severe bradycardia, heart failure symptoms, and bronchospasm.

For a detailed breakdown, read our full guide: Propranolol XR Side Effects: What to Expect.

Drug Interactions

Propranolol XR interacts with several other medications, including calcium channel blockers (like Verapamil and Diltiazem), NSAIDs, diabetes medications, MAO inhibitors, and Clonidine. Always give your doctor a complete list of everything you take.

Learn more: Propranolol XR Drug Interactions: What to Avoid.

Cost and Availability

The typical cash price for generic Propranolol XR ranges from $15 to $60 for 30 capsules, depending on the strength and pharmacy. However, prices vary widely, and using a coupon or discount card can help you save. Check out our guide to saving money on Propranolol XR.

In 2026, some patients have had difficulty finding Propranolol XR due to a supply shortage. If your pharmacy is out of stock, use MedFinder to check availability near you.

The Bottom Line

Propranolol XR is a well-established, effective beta-blocker used to treat high blood pressure, migraines, essential tremor, angina, and more. It's taken once daily as an extended-release capsule and is available as an affordable generic. If you need help finding Propranolol XR or a doctor who prescribes it, visit MedFinder or read our guide on finding a prescriber near you.