Yes, chloroquine is not a related compound of penicillin.

Chloroquine is often used for treating and preventing Malaria. You can learn more about this at the Wikipedia. Once on the page, type "Chloroquine" into the search field at the top of the page and press enter to bring up the information.

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Babies and children are especially sensitive to the antimalarial drug chloroquine. Not only are they more likely to have side effects from the medicine, but they are also at greater risk of being harmed by an overdose.