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Inderal LA is a brand-name version of Propranolol ER S.R.—a beta-blocker and oral high blood pressure (hypertension) medicine. The extended-release capsule can help lower blood pressure by decreasing heart activity and relaxing blood vessels.
Please note: At this time, this medication is only prescribed as a refill at Dr. B.
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How Dr. B treats high blood pressure
Tell us about your condition with a $15 online consultation—no video call necessary.
A medical provider will review your information and prescribe treatment, if appropriate.
Pick up and pay for the medication at the pharmacy of your choice. Or, get it delivered.
About Inderal LA (Propranolol ER S.R.)
How does it work?
Inderal LA works by blocking specific receptors in the heart and blood vessels. This action slows down the heart rate and reduces the force of its contractions, which helps to lower blood pressure and decrease the heart's workload, making it easier for the heart to pump blood efficiently.
What does it treat?
Inderal LA is primarily used to treat conditions like high blood pressure (hypertension), which occurs when the force of blood against the artery walls is too high. It can also be prescribed to manage certain heart rhythm problems and prevent migraines.
What forms does it come in?
Inderal LA comes in the form of extended-release capsules you take by mouth. These capsules are designed to release the medication slowly over time, allowing for once-a-day dosing to help control conditions like high blood pressure or prevent migraines over the long term.
Inderal LA vs. Propranolol ER S.R.
Both medications contain the active ingredient Propranolol and treat conditions like high blood pressure and migraines in the same way. Inderal LA and Propranolol ER S.R. are different brand names and may come in slightly different formulations.
How much will it cost?
Dr. B offers online consultations for $15—which is less than most copays. If a high blood pressure prescription is appropriate, your out-of-pocket medication cost will depend on your insurance and where you decide to get your prescription filled. With a drug discount card, prices for Propranolol ER 24 hr 80 mg (30 capsules) start at $12.46.
* Prices shown with drug discount card applied. Price may differ depending on location.
Propranolol ER 24 hr 80 mg (30 capsules)*
More High Blood Pressure (Hypertension) Prescription Refills
Looking for a different hypertension medication? Here are some options.
Inderal LA (Propranolol ER S.R.) prescription FAQ
What are the benefits of taking Inderal LA (Propranolol ER S.R.)?
- Lowers blood pressure
- Reduces the risk of stroke and heart attack
- Prevents kidney problems
- Prevents chest pain
- Treats heart rhythm problems
- Prevents migraine headaches
- Treats shaking (tremors)
Who should not take this medication?
- People who are allergic to Inderal LA
- People with a known allergy or severe reaction to beta-blockers.
- People with diabetes
- Those who have kidney or liver disease
- People with severe circulation problems
- People with pheochromocytoma tumor
- People who have untreated hyperthyroidism
- Those with myasthenia gravis (muscle disorder)
- People who have slow heart rate (bradycardia)
- Those with low blood pressure (hypotension)
- People with severe heart conditions or heart failure
- People with sick sinus syndrome (a heart rhythm problem)
- Those who have second- or third-degree atrioventricular block (a heart rhythm problem)
- People with asthma, other breathing problems or history of serious lung diseases
- Individuals with a history of severe depression or certain mental health conditions
- Those with Raynaud's syndrome (a condition that causes the fingers and toes to become numb and cold)
- Pregnant women, breastfeeding or those planning to become pregnant
Many medications—including MAOIs—may interact poorly with Inderal LA and increase the risk of drug interactions or other complications. Tell your licensed provider about all prior medical conditions and medications before starting this hypertension treatment.
How do you take this medication?
You take Inderal LA by mouth with or without food, usually once a day, following your health provider’s dosing instructions. The medication is designed for extended release and works best when you take it at the same time each day.
High blood pressure is a long-term (chronic) condition that can harm your organs. Medications for blood pressure are not a one-time cure. This medicine doesn't provide a complete cure for high blood pressure, so it's important to continue taking it, even if you start feeling better. If you stop taking it suddenly, this could cause dangerous problems, like heart attack or stroke. Follow your medical provider's instructions carefully.
What happens if I miss a dose?
Take the missed dose as soon as you remember—unless it's almost time for your next dose. If that’s the case, wait and take your next scheduled dose. Don't take extra medicine to make up for the dose you missed.
What happens if I take too much?
Taking too much Inderal LA may cause severe dizziness, fainting, hypoglycemia (low blood sugar), shallow or slow breathing or an unusually slow heartbeat.
If you experience these as severe symptoms, immediately seek emergency help. If they’re present but mild, call your licensed medical provider or local poison control center (800-222-1222).
Can I get Inderal LA (Propranolol ER S.R.) online?
Dr. B can’t help you get a new hypertension medication prescription right now. But if you’ve been diagnosed with hypertension and prescribed relief, we can help you refill your current medications. Dr. B offers both Inderal LA and Propranolol ER S.R. refills through a $15 online consultation—and you can have a refill prescription sent to the pharmacy of your choice!
Medical information reviewed by Dr. Sudip Bose
Sudip Bose, MD is a world-leading emergency medicine physician, combat veteran, professor, and entrepreneur. With a wide variety of experience, Dr. Bose is focused on endeavors with large-scale health and educational impact. He founded The Battle Continues, a nonprofit assisting veterans with healthcare needs. Dr. Bose is also a clinical professor at Texas Tech and University of Illinois College of Medicine. He is a graduate of the honors program at Northwestern University, where he continued his medical school education at The Feinberg School of Medicine.
Not everyone experiences side effects while on this medication. When they do happen, common side effects are often mild. They include:
- Cold hands or feet
- Mental/mood changes or depression
- Decreased libido
- Erectile dysfunction
Call your health provider immediately if you experience rare but serious side effects. These include fainting, blue fingers or toes, numbness or tingling in your limbs, mood changes, a very slow heart rate, increased thirst, aching joints, easy bruising or bleeding and decreased sexual ability. Also, report new or worsening cardiac symptoms like shortness of breath, swelling in your ankles or feet, unusual weight gain or a very slow heartbeat.
Don’t drive until you know how this medicine affects you. Be extra careful in the first hours after taking your pill because of the risk of dizziness or lightheadedness.
Getting your blood tested regularly is important to monitor your overall health. It's a good idea to have your bloodwork checked, which may include tests for renal function, glucose levels or potassium levels in your blood. These routine checks help ensure you are in good health and catch any potential issues early.