Although not all of these side effects may occur, if they do occur they may need medical attention. Check with your doctor immediately if any of the following side effects occur while taking hydroxychloroquine: Incidence not known Some side effects of hydroxychloroquine may occur that usually do not need medical attention. Is generic plaquenil as good Plaquenil and c diff Plaquenil skin issues Her medical history revealed that she was taking quinine or a derivative in three different forms hydroxychloroquine, quinine sulfate for leg cramps, and her gin mixed with tonic water containing quinine. Oct 15, 2014 Scary, we know. But don't let that deter you from ordering a gin and tonic next time you're at the bar, because tonic water contains very low levels of quinine. A glass of tonic water holds roughly 20 mg of quinine, whereas a dose for the treatment of leg cramps would be in the 200 to 300 mg range. If you guys can't get it, buy traditional indian tonic water. Make sure it has Quinine in it. Before Chloroquine was made, Quinine was used for malaria. They realised the benefit and reacted it with different chemicals, trying to improve the medicinal benefit. Reacting it with chlorine increased its efficacy, and Chloroquine was born. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. These side effects may go away during treatment as your body adjusts to the medicine. Hydroxychloroquine and tonic water Stopping Plaquenil - General Discussion - Life With Lupus, There's Quinine In Your Tonic, But What The Heck Is It. Plaquenil bleedingStopping plaquenil beforesurgeryPlaquenil lupus mechanismChloroquine diphosphate use Note This document contains side effect information about hydroxychloroquine. Some of the dosage forms listed on this page may not apply to the brand name Plaquenil. For the Consumer. Applies to hydroxychloroquine oral tablet. Along with its needed effects, hydroxychloroquine the active ingredient contained in Plaquenil may cause some. Plaquenil Side Effects Common, Severe, Long Term -. Updates on chloroquine and hydroxychloroquine working quite.. Quinine toxicity.. Hydroxychloroquine sulfate is a colorless crystalline solid, soluble in water to at least 20 percent; chemically the drug is 2-4-7-Chloro-4-quinolylaminopentylethylamino ethanol sulfate 11. PLAQUENIL hydroxychloroquine sulfate tablets contain 200 mg hydroxychloroquine sulfate, equivalent to 155 mg base, and are for oral administration. May 12, 2016 Her medical history revealed that she was taking quinine or a derivative in three different forms hydroxychloroquine, quinine sulfate for leg cramps, and her gin mixed with tonic water containing quinine. Other Ingredients in Tonic Water. Since the very word “tonic” sounds like something beneficial for the health, many people wonder what the ingredients of this refreshing beverage are. Quinine is a major ingredient of tonic water that gives it its recognizable bitter aroma.