Dose of hydroxychloroquine to be taken prophylactilly against COVID 19?

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According to ICMR guidelines prophylactic dose of HCQ is as follows. 1-Asymptomatic pt come in contact with covid19 +pt. Tab HCQ 400mg bd-day 1. Tab HCQ 400mg /week ×3week. 2-Asymptomatic health worker working in covid19 ornoncovid19 wards as front line corona worrier. Tab HCQ 400mg bd -day1 Tab 400mg /week for 7weeks After meal.
I think.very less evidence based datas are awailable of profelaxtic role of HCQ in corona.. As its with out DNA, i doubt any thing could be belpful as prophalaxic..except vaccination. But as Sr.member Dr.Shivrajji has suggested could be useful in view of his long practicing experience.
Hydroxychloroquin in prophylaxis against COVID 19 is topic of research Correct dose is yet to be decided by research We are using a dose, which is based on expert opinion and not based on profound research Therefore, one need to be cautious and judicious
HCQ used as prophylaxis by health care provider to COVID patients as suggested by GOI or ICMR. 400 mg bd on dau one. Than 400mh of weekly for 7 weeks. Prolonged use avoided in cardiac cases .
Thanks Dr Vipin Bihari Jain
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HCQS 400 mg 12 hrly on day one. Then 400mg once weekly for 7 weeks at least. Can be continued there after in health care workers. Avoid in cases where cardiac illness or prolonged QTc.
Prophylactic dose 9f Hcq 400mg 1st day either single dose or 200mg 1bd Next dose is weekly 200mg for 7 weeks
Thanx dr Vipin Bihari Jain
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400 mg bd stat fb 400 mg once a week for 7 week
400 MG BD X ON FIRST DAY.. 400 MG WKLY X 7 WKS
Yes as per protocols of ICMR
200 mg BD

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