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The Spermicidal Potency of Coca-Cola and Pepsi-Cola

Department of Medicine, Veterans General Hospital and Yang-Ming Medical College, Taipei, Taiwan, ROC

C.C. Shieh

Department of Medicine, Veterans General Hospital and Yang-Ming Medical College, Taipei, Taiwan, ROC

P. Wu

Department of Medicine, Veterans General Hospital and Yang-Ming Medical College, Taipei, Taiwan, ROC

B.N. Chiang

Department of Medicine, Veterans General Hospital and Yang-Ming Medical College, Taipei, Taiwan, ROC

The inhibitory effect of Old Coke, caffeine-free New Coke, New Coke, Diet Coke and Pepsi-Cola on human sperm motility was studied with a trans-membrane migration method. None of them could decrease sperm motility to less than 70% of control within one hour. A previous study which claimed a marked variation of spermicidal potencies among different formulations of Coca-Cola could not be confirmed. Even if cola has a spermicidal effect, its potency is relatively weak as compared with other well-known spermicidal agents.

Human & Experimental Toxicology, Vol. 6, No. 5, 395-396 (1987)
DOI: 10.1177/096032718700600508


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