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. What r the side effects of plaquenil How u stop plaquenil safely Hydroxychloroquine oral tablet is available as a brand-name drug and a generic drug. Brand name Plaquenil. Hydroxychloroquine comes only as a tablet you take by mouth. Hydroxychloroquine is used to treat malaria, lupus erythematosus, and rheumatoid arthritis. Do anti malaria drugs such as plaquenil hydroxychloroquine suppress the immune system and cause susceptibility more Do anti malaria drugs such as plaquenil hydroxychloroquine suppress the immune system and cause susceptibility to infections or no ? Hydroxychloroquine -- Teratogenic Agent Introduction. Hydroxychloroquine -- Teratogenic Agent There is evidence to indicate that exposure to Hydroxychloroquine an antimalarial drug during pregnancy may have a teratogenic effect on the fetus. A teratogen is a substance that can cause birth defects. 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 infertility Medicines for the Prevention of Malaria While Traveling., Can plaquenil hydroxychloroquine cause infertility. Can i take plaquenil if allergic to sulfaPlaquenil hemolytic anemia 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 unwanted effects. Plaquenil Side Effects Common, Severe, Long Term -. Hydroxychloroquine -- Teratogenic Agent Symptoms.. Hydroxychloroquine Side Effects Common, Severe, Long Term.. Hydroxychloroquine Plaquenil is a drug that is classified as an anti-malarial drug. Plaquenil is prescribed for the treatment or prevention of malaria. It is also prescribed for the treatment of rheumatoid arthritis, lupus, and the side effects of lupus such as hair loss, joint pain, and more. Hydroxychloroquine Does not impair fertility in males or females Sulfasalazine Females No inﬂuence on fertility Males Reversible oligospermia, asthenozoospermia, and teratozoospermia Stop 3 months before planning a pregnancy Cyclophosphamide Females Risk of infertility related to cumulative dose and age Hydroxychloroquine HCQ, sold under the brand name Plaquenil among others, is a medication used for the prevention and treatment of certain types of malaria. Specifically it is used for chloroquine-sensitive malaria. Other uses include treatment of rheumatoid arthritis, lupus, and porphyria cutanea tarda.