Regardless of the problem, we'd like to help you find what you're looking for. Plaquenil is the brand name for the prescription drug hydroxychloroquine. Plaquenil and hair growth Hydroxychloroquine fatigue Hydroxychloroquine erectile dysfunction If you forget to take Plaquenil. If you are being given Plaquenil for rheumatoid arthritis, SLE or DLE, do not take a double dose to make up for the dose missed. Just continue with the appropriate dose on the next day. If you are being given Plaquenil for suppression or treatment of malaria. 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. The way I understand it the plaquenil causes some CNS irritability. I think I have a little of it but I will just hang in there cause I had my dosage increased from 200 to 400 and saw results starting after 1 month. For me the relief of some of the symptoms has been very slight improvement that has increased slowly over time. Malaria is spread by mosquitoes, which transmit the parasites that cause the infection, usually in tropical and subtropical parts of the world. It's used to treat and prevent malaria infection, and to reduce symptoms and progression of autoimmune diseases such as lupus, rheumatoid arthritis, and others. Plaquenil irritability Hydroxychloroquine Plaquenil Side Effects & Dosage for., Hydroxychloroquine Plaquenil Side Effects & Dosage for Malaria Calcium chloroquinePlaquenil eye dosageDoes hydroxychloroquine help with psoriatic arthritisIs hydroxychloroquine safe during pregnancyChloroquine ph 500 mg tablet I did experience the GI side effects but they have mostly passed. I do have horrible constipation though and I am not sure if this is due to the plaquenil or to the disease itself. All I know is its a new symptom for me. For the past couple of weeks I am noticing increased irritability, mood swings, anxiety and depression. Plaquenil causing mood changes and depression?. Irritability and increased hot flashes with Plaquenil. Hydroxychloroquine Plaquenil. According to Drugs.com, Plaquenil given for a long term can cause retinal disorders after a few months or years of daily use--especially if the dose exceeds 400mg per day. The risk of retinal damage increases at doses of 600mg to 700mg. Find information about common, infrequent and rare side effects of Plaquenil Oral. Hydroxychloroquine is used to treat or prevent malaria, a disease caused by parasites that enter the body through the bite of a mosquito. Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria.