Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. Mthfr and plaquenil Dosage for plaquenil A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including rash, itching/swelling especially of the face/tongue/throat, dizziness, trouble breathing. This is not a complete list of possible side effects. The phlegm is not as bad as it was the last time, yet I wasn't on the Plaquenil as long this time and called the doctor sooner. After being off the Plaquenil for a little more than 24 hours, the phlegm seems to have already started to subside, and is no longer as thick but I continue to cough up white phlegm, yet it is not as thick. Since hydroxychloroquine may increase the effects of antidiabetic drugs or insulin, a decrease in the doses of these drugs may be required while taking hydroxychloroquine. In literature, cases of human pregnancy while taking hydroxychloroquine have occurred and no increase in the rate of birth defects has been noted. Hydroxychloroquine may also be used for purposes not listed in this medication guide. Hydroxychloroquine is also used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. Plaquenil birth control effects Contraception-what's safe? - Lupus International, Plaquenil Side Effects, User Reviews and Expert Help Good rx cost hydroxychloroquine Plaquenil hydroxychloroquine is an effective medication for autoimmune conditions and malaria that comes with less side effects than other DMARDs. Effectively prevents and treats malaria, and treats a certain type of intestinal infection but can cause serious side effects in certain people. Compare Plaquenil vs Chloroquine -. Hydroxychloroquine Plaquenil Success, Reviews and Side Effects. Plaquenil effects durring pregnancy Anti-Inflammatories.. Plaquenil. Uses. Hydroxychloroquine is used to prevent or treat malaria infections caused by mosquito bites. It does not work against certain types of. Side Effects. Precautions. Interactions. Melasma is common and annoying and often chronic skin condition. It is more common in people with darker skin types, and those who have extensive sun exposure. It is particularly common when a woman becomes pregnant "the mask of pregnancy", and less so when taking the birth control pill. I'm not aware of plaquenil as a cause for melasma. If side effects do occur, they are usually minor and last only for a short period of time. Potential side effects of anti-malarial drugs include Skin rashes and pigment change. Atabrine, specifically, can cause yellow pigmentation of skin. Sometimes Plaquenil can also deposit in the tissues of the body and cause the skin to take on a greenish tone.