List of adverse effects of valproate semisodium
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Adverse effects by frequency for use of valproate semisodium.[1][2][3]
- Nausea
- Tremor
Common (1-10% frequency)
- Liver injury
- Gastralgia
- Diarrhoea
- Extrapyramidal (movement) disorder
- Stupor[a]
- Somnolence
- Convulsion[a]
- Memory impairment
- Headache
- Nystagmus
- Confusional state
- Aggression[b]
- Agitation[b]
- Impaired attention[b]
- Hyponatraemia
- Anaemia
- Thrombocytopaenia
- Hypersensitivity
- Transient and/or dose-related hair loss
- Dysmenorrhea
- Haemorrhage (bleeding)
- Weight gain[c]
Uncommon (0.01-0.1% frequency)
- Pancreatitis (sometimes lethal)
- Coma[a]
- Lethargy[a]
- SIADH
- Pancytopenia
- Leucopenia
- Rash
- Angioedema
- Amenorrhoea (absence of menstrual cycle)
- Vasculitis
- Peripheral oedema
- Reduced bone mineral density
- Osteopaenia
- Osteoporosis
- Pleural effusions
- Gingival enlargement