India fully lifted an export ban on hydroxychloroquine, a drug favored by US President Donald Trump as a treatment against coronavirus, as questions remain over the malaria medicine's effectiveness against Covid-19, AFP reported.

The Directorate General of Foreign Trade said in a notice that “hydroxychloroquine and its formulations” were now “free” to be exported.

India accounts for 70 per cent of global production of hydroxychloroquine, which is also used to treat lupus and rheumatoid arthritis.