Coronil, a medicine that claims to boost immunity against COVID-19, developed by yoga guru Ramdev-promoted Patanjali Ayurved has run into a controversy over claims of certification. At the launch event on February 19 where Health Minister Harsh Vardhan and Union Minister Nitin Gadkari were also in attendance, the Patanjali product was billed by the company as the "first evidence-based medicine for COVID-19".