See physician always: chest pain, difficulty urinating, nightmares, ringing in the ears, rapid heart rate excessive sedation or uncoordinated movements while taking this medication
[psyweb.com]
Central nervous system: dizziness, drowsiness, confusion, seizures, headache, anxiety, tremors, stimulation, weakness, insomnia, nightmares, extrapyramidal symptoms in geriatric
[en.wikipedia.org]
Tell your doctor if any of these symptoms are severe or do not go away: nausea drowsiness weakness or tiredness excitement or anxiety nightmares dry mouth skin more sensitive
[medlineplus.gov]