Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. Side effects of plaquenil 200 mg Allergic reaction to plaquenil I started on 400 mg of hydroxychloroquine 400 mg daily along with prednisone 10mg daily 9 weeks ago. The GI upset started after a short time and got progressively worse with explosive diarrhea. Find patient medical information for Plaquenil Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. Mg PO twice daily plus sulfasalazine 500 to 1000 mg PO twice daily and methotrexate 7.5 to 17.5 mg PO once weekly for 2 years led to an ACR20 in 78% of 58 patients with active disease and a disease duration of at least 6 months. 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 200 mg daily Plaquenil - FDA prescribing information, side effects and uses, Plaquenil Oral Uses, Side Effects, Interactions, Pictures. What happens if you just stop taking plaquenilSudden blurry vision with plaquenil have floatersPlaquenil and valium Hydroxychloroquine comes in an oral tablet. Adult dosing ranges from 200 mg or 400 mg per day 6.5mg/kg. In some cases, higher doses can be used. It is recommended one tablet twice daily if taking more than one tablet. It is recommended to be taken with food. Hydroxychloroquine Plaquenil. Plaquenil hydroxychloroquine sulfate dose, indications.. Taking Plaquenil for Various Conditions and Treatment Tips. The recommended adult dose for rheumatoid arthritis is 400-600 mg daily for 4-12 weeks followed by 200-400 mg daily. Systemic lupus erythematosus is treated with 400 mg once or twice daily for several weeks then 200-400 mg daily. Hydroxychloroquine should be The recommended initial dosage of hydroxychloroquine Plaquenil for the treatment of rheumatoid arthritis is 400 to 600 mg daily. The recommended maintenance dose range of hydroxychloroquine Plaquenil for the treatment of rheumatoid arthritis is 200 to 400 mg daily. The usual dosage is two 200mg tablets per day. This is generally a "safe" dose for patients having a lean body weight of at least 135 lbs. The generally-regarded safe dosage is 6.5mg/kg/qd, thus the 135 lb. safety threshold.