IRCT20221229056979N1 IRCT 2023-05-31 Shahid Beheshti University of Medical Sciences Investigating the effect of vitamin B1 oral tablets on the post covid-19 syndrome Investigating the effect of vitamin B1 oral tablets on the post covid-19 syndrome in comparison with the control group 2022-03-21 anticipated 60 Complete https://irct.ir/trial/67746 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: First, 60 patients who are eligible to enter the study (patients who have recovered from the disease of covid-19, but their symptoms are still more than usual, after three weeks of the onset of symptoms of covid-19, have symptoms such as fatigue, sleep disorders, loss of sense of taste and smell, chest pain, cough, joint pain, hair loss, skin rashes, etc.) are at the time of admission background information including sex, age, clinical and drug records, disease manifestations and laboratory findings as well as symptoms Vitality and severity of the disease, history of hospitalization and receiving corticosteroids will be collected from the patients and recorded in the study checklist. Then for the patients of the treatment group (30 people) who will be randomly selected. N/A Post covid-19 syndrome. Intervention 1: Control group: Control group receives only supportive therapy including vitamin C, Famotidine, and Zinc (one tablet for each supplement) orally for 8 weeks. Intervention 2: Intervention group: Intervention group receives vitamin B1 (600 mg daily for 8 weeks) in addition to supportive therapy (same as control group). Yes - There is a plan to make this available What will be shared: Part of the data, such as information related to the main outcome or similar, can be shared When: The beginning of the access period from 1402 To whom: The data will be available only to researchers working in academic and scientific institutions Conditions: Data for clinical use will be available Where to obtain: dr.elmira_1991@yahoo.com How to obtain: After the request, the data will reach the requester within a week. Comments: