Inderal and Low Blood Sugar

Side effects can occur with Inderal, and low blood sugar is one of them. This is more common in infants, children, and people with kidney disease or diabetes. Early symptoms include blurry vision, dizziness, and sweating. More severe symptoms include difficulty speaking, seizures, and confusion. If low blood sugar symptoms occur while taking Inderal, contact your healthcare provider.

Does Inderal Cause Low Blood Sugar?

Low blood sugar levels have been reported in people taking Inderal® (propranolol hydrochloride), as well as with other beta blockers. This side effect is more common in infants, children, and people with kidney disease or diabetes. It is also more common after prolonged exercise or while fasting (such as before surgery).
 

Symptoms of Low Blood Sugar With Inderal

Symptoms of low blood sugar can vary, depending on a number of factors, including how low the levels are.
 Examples of early symptoms may include:
 
  • Sweating
  • Shakiness
  • Extreme hunger
  • Dizziness
  • Cold sweats
  • Blurry vision.
     
More severe symptoms can include:
 
  • Changes in behavior, such as irritability
  • Loss of coordination
  • Difficulty speaking
  • Confusion
  • Seizures
  • Loss of consciousness
  • Coma
  • Loss of life.
     
Two other symptoms that can occur in people with low blood sugar are an increase in heart rate and an increase in blood pressure. However, in people taking Inderal, low blood sugar symptoms may not occur because of the effects of the medicine. Therefore, Inderal can "mask" these important symptoms, perhaps making low blood sugar less noticeable and, therefore, more dangerous.
 
(Inderal and Low Blood Sugar Continued: Page 2)
Written by/reviewed by: Kristi Monson, PharmD; Arthur Schoenstadt, MD
Last reviewed by: Kristi Monson, PharmD;
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