As the result of the extensive use of quinacrine hydrochloride (atabrine) as an antimalarial drug during the war, its pharmacologic properties have become well known and have been discussed thoroughly in the literature. Temporary yellow discoloration of the skin and certain types of associated skin reaction, including bluish pigmentation of the nails and palate,1 due to the prolonged use of atabrine as an antimalarial prophylactic, have also been reported and observed by army physicians.
It is well known that atabrine when given orally accumulates in the tissues and is slowly excreted from the body. When its use is discontinued, excretion continues for long periods. Our present discussion shows that it is still present in the nails a year or more after regular oral ingestion of the drug has been stopped. The practical application in determining whether or not troops are taking or have taken atabrine prophylaxis or treatment will
GINSBERG JE, SHALLENBERGER PL. WOOD'S LIGHT FLUORESCENCE PHENOMENON IN QUINACRINE MEDICATION. JAMA. 1946;131(10):808-809. doi:10.1001/jama.1946.02870270008003