Study Exclusion reasons Remarks Reference(s)
Thakar, 2021 randomized controlled trial no clinically relevant endpoint

Thakar A Indian J Med Res 2021 Jan 21. 10.4103/ijmr.IJMR_3665_20

 
Thakar, 2021 randomized controlled trial other chloroquine nasal drops

Thakar A Indian J Med Res 2021 Jan & Feb;153(1 & 2):151-158. 10.4103/ijmr.IJMR_3665_20