- Nervous tension.
- Fast or fluttering heartbeat.
- Disturbed sleep.
- Behaviour changes in children.
- Muscle cramps.
- Hypersensitivity to the drug.
- Acute asthma.
- Impaired renal function.
- Impaired liver function.
- Severe thyrotoxicosis.
- Severe cardiovascular disorders.
Interaction: Succinylcholine (suxamethonium): Prolonged muscle relaxing effect. b-blockers: May inhibit the effect of b-stimultants. Xanthine derivatives, steroids & diuretic: Hypokalemia may be caused.
Servings: Adult: Initial recommended dose is 10 mg; which may be increased to 20 mg after 1-2 weeks depending on the clinical effect. Children: 6 to 12 years: Initial dose 5 mg; which may be increased to 10 mg after 1-2 weeks depending on the effect. 2 to 5 years: Recommended normal dose is 5 mg. Dose above 10 mg are not recommended in children. All doses are taken at once daily before bed time