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Drug Interactions

Propranolol can potentially interact with a number of medicines (see Drug Interactions With Propranolol).

What If I Take an Overdose?

People who take too much propranolol may have overdose symptoms that could include:
  • Extremely low blood pressure (hypotension)
  • A severe decrease in heart rate (bradycardia)
  • Difficulty breathing.


If you happen to take too much, seek immediate medical attention.
(Click Inderal Overdose for more information.)

How Should Propranolol Be Stored?

Propranolol should be stored at room temperature in a dry place. The tablets and oral solution should be kept in an airtight, light-resistant container.
Keep this and all medications out of the reach of children.

What Should I Do If I Miss a Dose?

If you do not take your propranolol as scheduled, take your missed dose as soon as you remember. If it is almost time for your next scheduled dose, skip the missed one and continue with normal dosing. Never take a double dose.

Who Makes It?

Brand-name propranolol (Inderal) was manufactured by Wyeth Pharmaceuticals but is no longer available. Generic versions are made by various manufacturers.

Available Strengths

Propranolol tablets come in a number of strengths, including:
  • Propranolol 10 mg
  • Propranolol 20 mg
  • Propranolol 40 mg
  • Propranolol 60 mg
  • Propranolol 80 mg.
Propranolol oral solution (liquid) is available in the following strengths:
  • Propranolol 20 mg per 5 mL
  • Propranolol 40 mg per 5 mL.
Propranolol injection comes in a 1 mg per mL strength. Propranolol is also available in a long-acting form (see Inderal LA).
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Propranolol Hydrochloride

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