Can cause anorexia
nausea
vomiting
constipation
diarrhea
alterations in liver function
peripheral neuritis
optic neuritis
headache
drowsiness
convulsions
vertigo
blood disorders aplastic anemia
eosinophilia
flushing
urticarial
rash
puerperal
pancreatitis
edema
interstitial pneumonitis
hyperreflexia
hyperglycemia
adrenal insufficiency
gynaecomastia and menstrual disturbances.