International guidelines on alcohol withdrawal and vitamin C replacement
| Country | Organisation | Recommendation | ||||
| Alerts to hypovitaminosis | Vitamin C replacement | Route | Dose | Time period | ||
| International | WHO30 | + | – | – | – | – |
| World Federation of Societies of Biological Psychiatry31 | + | – | – | – | – | |
| USA | American Psychiatric Association32 | − | – | – | – | – |
| Substance Abuse and Mental Health Services33 | + | Multivitamin | Intravenous | NS | NS | |
| Australia | Australian Government, Department of Health and Ageing34 | + | Multivitamin | Oral | Daily | NS |
| Government of South Australia, SA Health35 | + | Multivitamin | NS | NS | NS | |
| UK | National Institute for Health and Care Excellence36 | − | – | – | – | – |
| Southern Health, NHS Foundation Trust37 | + | Vitamins B and C* | Intramuscular | 1 Amp daily | 5 days | |
| Multivitamin | Oral | 1 Tab daily | 6 weeks | |||
| Guy’s and St Thomas’, NHS Foundation Trust38 | + | Vitamins B and C* | Intravenous | 1–2 Amp three times a day | 7 days | |
| NHS Grampian39 | + | Vitamins B and C* | Intravenous | 1–2 Amp three times a day | 5 days | |
| Oral | 500 mg | NS | ||||
*Given as Pabrinex injection.
(+), present; (-), absent;Amp, ampoule (5 mL each); NS, not specified; Tab, tablet.