Yes, metoprolol does appear to cause insomnia in some people.
Nervous system side effects have included general fatigue in 1% to 10%, dizziness in 1% to 10%, headache in 0.3% to 4.0%, insomnia in 2%, nightmares in 1%, mental confusion, short-term memory loss, and somnolence. Anxiety, nervousness, hallucinations, headache, tinnitus, and paresthesias have been associated with extended release preparations of metoprolol in postmarketing use.
- Metoprolol Information for Consumers
- Metoprolol Information for Healthcare Professionals (includes dosage details)
- Side Effects of Metoprolol (detailed)
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