Inderal (propranolol): what it does and what to watch for

Did you know the same drug used for high blood pressure can also calm stage fright? Inderal (generic: propranolol) is a beta-blocker that slows your heart and eases physical stress reactions. People take it for high blood pressure, angina, certain irregular heartbeats, essential tremor, migraine prevention, and short-term performance anxiety.

Here’s the straightforward part: it works by blocking adrenaline’s effect on the heart and blood vessels. That lowers heart rate and blood pressure, and it reduces the tremor and pounding feelings that make anxiety worse.

How much? Typical daily doses vary by reason: for high blood pressure and heart issues doctors often start low and work up—40–160 mg divided through the day. For migraines, doses often sit around 80–160 mg daily. For stage fright, people commonly use 10–40 mg an hour before the event. Never change dose on your own—talk to your prescriber first.

Common side effects and important warnings

Common effects include tiredness, dizziness, cold hands or feet, and slower pulse. Serious risks to watch for: breathing trouble if you have asthma or COPD, very slow heart rate, fainting, or signs of low blood sugar being masked if you have diabetes. Don’t stop Inderal suddenly—doing that can make chest pain or heart rhythm problems worse. Pregnant or breastfeeding? Ask your doctor—this drug needs extra care during pregnancy.

Drug interactions matter. Combining Inderal with other blood-pressure meds, certain calcium-channel blockers (like verapamil), or strong sedatives can drop heart rate or pressure too much. It can also hide low-blood-sugar symptoms if you use insulin or sulfonylureas. Carry a complete list of your meds to every clinic visit.

Practical tips: check your pulse and blood pressure at home when you start or change dose. If you feel dizzy, stand up slowly. If you have asthma, tell your doctor—propranolol can trigger wheeze. If you miss a dose, take it as soon as you remember unless it’s almost time for the next one—don’t double up.

Quick safety checklist

• Tell your doctor if you have asthma, diabetes, or severe circulation problems.
• Start with a low dose if you’re older or sensitive to medications.
• Don’t stop suddenly—ask how to taper safely.
• Watch for lightheadedness; avoid driving until you know how it affects you.
• Keep a current medication list and a blood-pressure log.

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If you have specific questions about Inderal—like dose for your condition, or mixing it with another drug—ask your prescriber or pharmacist. Small checks now prevent big problems later.