<prompt> Thiamine dose in patients with delirium tremens is about:100-200 mg per oralParenteral daily250 mg per oralParenteral daily for first 3-5 days400 mg per oralParenteral daily500 mg per oralParenteral daily  <response>: 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 Wernickes encephalopathy. 