https://bnf.nice.org.uk/drug/chloroquine.html https://bnf.nice.org.uk/drug/chloroquine.html > Side-effects > Rare or very rare > Cardiomyopathy; hallucinatio

https://bnf.nice.org.uk/drug/chloroquine.html https://bnf.nice.org.uk/drug/chloroquine.html > Side-effects > Rare or very rare > Cardiomyopathy; hallucination; hepatitis >Frequency not known > Abdominal pain; agranulocytosis; alopecia; anxiety; atrioventricular block; bone marrow disorders; confusion; corneal deposits; depression; diarrhoea; eye disorders; gastrointestinal disorder; headache; hearing impairment; hypoglycaemia; hypotension; insomnia; interstitial lung disease; movement disorders; myopathy; nausea; neuromyopathy; neutropenia; personality change; photosensitivity reaction; psychotic disorder; QT interval prolongation; seizure; severe cutaneous adverse reactions (SCARs); skin reactions; thrombocytopenia; tinnitus; tongue protrusion; vision disorders; vomiting This "frequency not known" is listed alphabetically. There's some potentially fatal things in that list.