It may have both an anti-spirochaete activity and an anti-inflammatory activity, similar to the treatment of rheumatoid arthritis. And caution is required if patients have certain heart conditions, diabetes, psoriasis etc. Plaquenil and feeling sick Hydroxychloroquine sulfate oral tablet 200 mg The following interactions have been observed on treatment with the structurally related substance chloroquine phosphate, and therefore cannot be ruled out for hydroxychloroquine. Praziquantel. Chloroquine has been reported to reduce the bioavailability of praziquantel. Antacids And Kaolin Hydroxychloroquine is also used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. Hydroxychloroquine may also be used for purposes not listed in this medication guide. What are the possible side effects of hydroxychloroquine Plaquenil, Plaquenil Sulfate, Quineprox? Two days now I've taken the Pepcid, then an hour later took the Plaquenil and it's working great. I didn't even eat this morning and didn't have a problem. BTW I talked to two pharmacists and both said that it's okay to take with the plaquenil. The most serious adverse effects affect the eye, with dose-related retinopathy as a concern even after hydroxychloroquine use is discontinued. The most common adverse effects are a mild nausea and occasional stomach cramps with mild diarrhea. Plaquenil and tums Hydroxychloroquine Oral Route Side Effects - Mayo Clinic, Plaquenil Hydroxychloroquine Side effects, Images, Uses. Plaquenil sunburnTingling arms plaquenil Hi As far as I know the advice is to make sure that antacids and Plaquenil are taken at least 4 hours apart. If they are taken together - effectiveness decreases but 4 hours apart is OK. Plaquenil and antacids? - Sjogren's World. Plaquenil and Pepcid -. Plaquenil hydroxychloroquine – New Warnings. The molecular weight of hydroxychloroquine sulfate is 433.95, and molecular formula is C 18 H 26 ClN 3 O. H 2 SO 4. PLAQUENIL hydroxychloroquine sulfate tablets contain 200 mg hydroxychloroquine sulfate, equivalent to 155 mg base, and are for oral administration. Avoid taking an antacid or Kaopectate kaolin-pectin within 4 hours before or after you take hydroxychloroquine. Some antacids can make it harder for your body to absorb hydroxychloroquine. Someone else told me that plaquenil could take up to a year to work. Others have told me that it only took a few months for them to feel the effects. Everyone is different. I can tell you that plaquenil is the safest of all of the DMARDs. If you're going to stay on a DMARD for a long time, plaquenil is the one to be on. Best of luck on the.