>10%
Drowsiness, transient (10-63%),Dizziness (5-15%),Nausea (4-12%),Confusion (1-11%)
1-10%
Headache (4-8%),Insomnia (2-7%),Constipation (2-6%),Urinary frequency (2-6%),Fatigue (2-4%)
<1%
Abdominal pain,Ankle edema,Anorexia,Ataxia,Blurred vision,Chest pain,Coordination disorder,Depression,Diarrhea,Dry mouth,Diplopia,Dysarthria,Dyspnea,Dystonia,Enuresis,Euphoria,Excitement,Hallucinations,Hematuria,Hypotension,Impotence,Miosis,Muscle pain,Mydriasis,Nasal congestion,Nocturia,Nystagmus,Palpitation,Paresthesia,Excessive perspiration,Pruritus,Rash,Rigidity,Seizure,Strabismus,Slurred speech,Syncope,Tinnitus,Tremor,Urinary retention,Vomiting,Weight gain
Potentially Fatal: Respiratory or CV depression, seizures.