 These symptoms may be severe enough to warrant hospitalisation . Treatment is supportive ; antispasmodic medicines may lessen colicky abdominal cramps , and activated charcoal may be administered early on to bind residual toxin . Intravenous fluids may be required if dehydration has been extensive , especially with children and the elderly . Once gastric contents are emptied , metoclopramide may be used in cases of recurrent vomiting . 
