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. Plaquenil weight Plaquenil ophthalmology retina specialist 2018 Vitamin B12 deficiency causes various neuropsychiatric problems ranging from neuropathy to dementia in the elderly. Vitamin B12 deficiency is found to cause neurological and psychiatric problems in adults between 40–90 years of age. It rarely affects people younger than this. I went to my Neurologist and saw the nurse, because my neurologist had to cancel all her appointments. The nurse went thru all my blood work, and said my B12 is way too low for someone with Neuropathy. She repeated that B12 test, and again it is low. Because it Plaquenil is the brand name for the prescription drug hydroxychloroquine. It's used to treat and prevent malaria infection, and to reduce symptoms and progression of autoimmune diseases such as. 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. Plaquenil and b12 HYDROXYCHLOROQUINE SULFATE Drug BNF content published by NICE, VITAMIN B12 and Neuropathy Mayo Clinic Connect Brazil nuts and plaquenilChloroquine phosphate dosageChloroquine tablet priceChloroquine fluoroquinolonesHydroxychloroquine couppn Saturday was a week since I stopped taking Plaquenil, aka Hydroxychloroquine, per my doctor's instructions, and I think I am going through some form of withdrawal. I took the drug as a treatment for sarcoidosis and one of the side effects is a reduction in white blood cells, which is what has happened to me. Plaquenil Withdrawal – Life As An Anomaly. Plaquenil Hydroxychloroquine - Side Effects, Dosage.. Plaquenil Side Effects Common, Severe, Long Term -. 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. Incidentally, I asked him why plaquenil causes hair loss, and he said no one knows why. It's just one of those drugs known to have that side effect. Nothing to really help it he said, other than taking folic acid, b12 and biotin. I asked him about methotrexate, and he said he was on it for years for his RA and never had any major side effects. Plaquenil hydroxychloroquine belongs to a group of medicines called quinolines. Plaquenil 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.