Quinacrine S Isomer, also known as mefloquine, has been widely used as an antimalarial medication. However, for those researching or seeking alternatives, it is essential to explore synonymic options. Several synonyms for Quinacrine S Isomer include Lariam, Mephaquin, Mefloquin, and Plaquenil. These alternative terms are often used interchangeably in the medical field, allowing professionals to communicate effectively. Nevertheless, it is crucial to consult with a healthcare provider for proper guidance and dosage instructions when considering any substitute for Quinacrine S Isomer, as different brands or forms of the medication may vary in their composition or bioavailability.