Can cause dizziness
somnolence
headache
ataxia
fatigue
vertigo
nervousness
amnesia
abnormal thinking
insomnia
speech disorder
agitation
confusion; vomiting
nausea
abdominal pain
diarrhoea
dyspepsia
constipation
gastritis
weight gain; abnormal gait
tremor
weakness
back pain
abnormal coordination
dysmetria
sprains/strains
muscle weakness; diplopia
nystagmus
abnormal vision and accommodation; hypotension
leg oedema; rash
acne; hyponatremia; rhinitis
chest infection
epistaxis
sinusitis.