Thiamine dose in patients with delirium tremens is about:

In patients who are undergoing inpatient detoxification, Parenteral thiamine 250 mg/ day should be given for 5 days followed by oral thiamine. As delirium tremens is complicated alcohol withdrawal that is always treated inpatient, the same dosage should be used. Thiamine is used to prevent development of Wernicke's encephalopathy.