Side effects of Propranolol include:
- Slowing heart rate
 - Diarrhea
 - Dry eyes
 - Hair loss
 - Nausea
 - Weakness or tiredness
 
More serious and potentially life-threatening side effects may include:
- Allergic reactions (skin rash; itching; hives; swelling of your face, lips or tongue)
 - Breathing problems
 - Changes in blood sugar
 - Cold hands or feet
 - Nightmares or trouble sleeping
 - Dry, peeling skin
 - Hallucinations
 - Muscle cramps or weakness
 - Slow heart rate
 - Swelling of your legs or ankles
 - Sudden weight gain
 - Vomiting
 - Dizziness, light-headedness, or loss of consciousness
 
If you experience any of these serious side effects call 911 or seek immediate in person care.
 
This is not a substitute for medical advice.  Always talk to you doctor before starting any new medication or supplement.