Highlights World Health Organisation has warned against the use of Ivermectin drug Goa's Health Minister Vishwajit Rane had recommended the drug to all above 18 years of age The WHO had, in March, issued a similar warning against the use of ivermectin in treating Covid patients New Delhi: A day after Goa's Health Minister Vishwajit Rane recommended Ivermectin to all above 18 to combat Covid in the state, the World Health Organisation on Tuesday has warned against its use. `Safety and efficacy are important when using any drug for a new indication. @WHO recommends against the use of ivermectin for #COVID19 except within clinical trials,` Soumya Swaminathan, the global health body`s chief scientist, said in a tweet.