1.2 Safety Profile of HCQ
The data on assessment of HCQ prophylaxis among 1323 HCWs indicated mild adverse effects
such as nausea (8.9%), abdominal pain (7.3%), vomiting (1.5%), hypoglycemia (1.7%) and
cardio-vascular effects (1.9%).However, as per the data from the Pharmacovigilance program of
India, there have been 214 reported instances of adverse drug reactions associated with
prophylactic HCQ use. Of these, 7 were serious individual case safety reports with prolongation
of QT interval on ECG in 3 cases.