At first, the surges began in the evening, with pounding heartbeat, shakiness, breaking out in sweat, anxious feeling, and the need to have a bowel movement. Sometimes this would continue until I had fully evacuated my bowel, waking me again and again for up to four hours, and then would subside. Toddler ate plaquenil Chloroquine omeprazole Plaquenil causes lowcalcium levels Plaquenil arthritis treatment Find information about common, infrequent and rare side effects of Plaquenil Oral. Side effects of corticosteroids can include mood swings, weight gain, high blood sugar, increased blood pressure, weakened bones and cataracts. Antimalarial drugs. Hydroxychloroquine Plaquenil can treat mild mixed connective tissue disease and might prevent flare-ups. Calcium channel blockers. Plaquenil and Hypotension - from FDA reports Summary Hypotension is found among people who take Plaquenil, especially for people who are female, 60+ old, have been taking the drug for 1 month, also take medication Methotrexate, and have High blood pressure. I lost my appetite, could barely eat due to nausea (no vomiting), began losing weight, diarrhea. I was already taking Atenolol (beta blocker) for many years for intermittent palpitations from mitral valve prolapse and migraines, so he increased my dosage to twice a day to help with the symptoms. Then, the frequency continued until these surges were almost constant. Plaquenil and blood pressure How Does Lupus Affect the Cardiovascular System Johns., Mixed connective tissue disease - Diagnosis and treatment. Can plaquenil cause hivesPlaquenil dental concernsDoes chloroquine increase or decrease cell viability Aug 14, 2017 According to the New Zealand Dermatological Society, Plaquenil can cause abnormalities in blood counts. An abnormally low number of white blood cells can lead to infection, because white blood cells defend the body against bacteria. Low platelet count thrombocytopenia can lead to easy bleeding and bruising. Long-Term Side Effects of Plaquenil for Rheumatoid Arthritis.. Will you have Hypotension with Plaquenil - eHealthMe. Can I have high blood pressure from Plaquenil?. Hydroxychloroquine Plaquenil is used to treat malaria, lupus, and rheumatoid arthritis. Learn about side effects, warnings, dosage, and more. blood tests. Hidden costs. Find patient medical information for Plaquenil Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. Hydroxychloroquine HCQ, a common anti-rheumatic medication, can be cardiotoxic and cause systolic or diastolic heart failure HF. A 65 year old man presented with acute decompensated HF. He had a history of rheumatoid arthritis, and had been treated with hydroxychloroquine for the last 8 years.