Quinine side effects include deafness, low blood platelets, and an irregular heartbeat. Use can make one more prone to sunburn. While it is unclear if use during pregnancy causes harm to the baby, use to treat malaria during pregnancy is still recommended. Quinine is an alkaloid, a naturally occurring chemical compound. How it works as a medicine is not entirely clear. Quinine was first isolated in 1820 from the bark of a cinchona tree. Bark extracts have been used to treat malaria since at least 1632. It is on the World Health Organization's List of Essential Medicines, the most effective and
USS Cinchona (AN-12) the States 27 July, she conducted net operations at Long Beach, California, and out of Mare Island Naval Shipyard until 24 August 1946 when she sailed for Astoria, Oregon. "Cinchona" was placed out of commission in reserve 6 November 1946 at Vancouver, Washington. "Cinchona" received two battle stars for World War II service. The first was for her performance at Pearl Harbor while under attack by Japanese planes. The second was for her operating under dangerous conditions during the Mariana Islands operation. USS Cinchona (AN-12) USS "Cinchona" (AN-12/YN-7) was an "Aloe"-class net laying ship which was assigned to serve the