It is likely that propranolol was the cause of her headache, since it recurred when she was rechallenged with the drug. . However, in the case reported here, pro- pranolol appeared to precipitate vascular headaches. and placebo.

What are the most common side effects of propranolol?

The main side effects of propranolol are feeling dizzy or tired, cold hands or feet, difficulties sleeping and nightmares. These side effects are usually mild and short lived.

Do beta blockers cause headaches?

Effects on the central nervous system include headache, depression, confusion, dizziness, nightmares, and hallucinations. Beta blockers may cause shortness of breath in asthmatics. Sexual dysfunction may also occur.