“In the mid-seventeenth century, Spain began to import the bitter bark of cinchona trees from Peru and Ecuador as an antidote for malaria.”

“Quinine is a natural extract of the cinchona tree, and was used to treat malaria.”

“There are still cinchona trees in the area, though modern medicine has rendered them useless.”

“The fitness test was a cinch for Drew as he had kept himself in superb physical condition.”

“He was a cinch to cast as the wicked wizard Jafar in Aladdin.”

“He found Andy morosely replacing some broken strands in his cinch.”

“The fitness test was a cinch for Drew as he had kept himself in superb physical condition.”

“He was a cinch to cast as the wicked wizard Jafar in Aladdin.”

“He found Andy morosely replacing some broken strands in his cinch.”

“Evidence of cinchonism, such as tinnitus, may occur occasionally in patients receiving 260-520 mg of quinine sulfate daily.”

“Mild cinchonism consists of ringing in the ears, headache, nausea and disturbed vision.”

“I gave it as my opinion that the man was suffering from chronic cinchonism, or quinin poisoning.”

“Dr de Vrij states that the substance known under this name is a mixture of hydrochlorate of cinchonidine and of cinchonine.”

“Tartrate of potash and soda indicate, under these circumstances, only the presence of cinchonidine.”

“If it is chemically pure, cinchonidine belongs to the non-fluorescent alkaloids.”

“We conclude that intravenous infusion of cinchonine might be started 12 hours before chemotherapy infusion.”

“Dr de Vrij states that the substance known under this name is a mixture of hydrochlorate of cinchonidine and of cinchonine.”

“When cinchonine is distilled with solid potassium hydrate, it yields pyrrol and bases of both the pyridine and quinoline series.”