On 4 April, the Government of India banned the export of hydroxychloroquine "without any exception", to stockpile supplies for domestic use. The United States, which imports half its supply of the drug from India and expects to use it for treating COVID-19 patients, grew concerned. The US President Donald Trump called Prime Minister Modi the next day, and hinted at possible retaliation in a press conference. India agreed to allow its export on "humanitarian grounds". Apart from the US, India had outstanding orders for hydroxychloroquine from some 30 countries, including Brazil, Spain, France, UK, Germany, Australia, the Gulf countries and the SAARC neighbours. The decision to partially lift the ban preceded President Trump's comment on possible retaliation.
