Hydroxychloroquine is widely used in the treatment of post-Lyme arthritis. It may have both an anti-spirochaete activity and an anti-inflammatory activity, similar to the treatment of rheumatoid arthritis. Hydroxychloroquine dangers Plaquenil and lung cancer Medicines that may cause Plaquenil interactions include digoxin, cyclosporine, and mefloquine. This eMedTV resource contains a more detailed list of drugs that may interact with Plaquenil and describes the potential effects of these interactions. Doxycycline. A drug used to treat many types of bacterial infections. It stops the growth of bacteria by keeping them from making proteins. It is a type of antibiotic. hydroxychloroquine. A substance that decreases immune responses in the body. Hydroxychloroquine belongs to the family of drugs called antiprotozoals. Mar 27, 2013 My doctor started me on plaquenil in combination with minocycline for my first round of treatment. I know minocycline is an antibiotic related to doxycycline, yet I looked plaquenil up and found that it is a DMARD, used to treat malaria, rheumatoid arthritis and lupus. The most common adverse effects are a mild nausea and occasional stomach cramps with mild diarrhea. For short-term treatment of acute malaria, adverse effects can include abdominal cramps, diarrhea, heart problems, reduced appetite, headache, nausea and vomiting. And caution is required if patients have certain heart conditions, diabetes, psoriasis etc. Hydroxychloroquine and doxycycline Doxycycline and plaquenil, doxycycline and plaquenil Pill shop., Antibiotics and Hydroxychloroquine in Crohn's Smart Patients Chloroquine in typhoid What is Hydroxychloroquine sulfate? Hydroxychloroquine sulfate has active ingredients of hydroxychloroquine sulfate. It is often used in rheumatoid arthritis. Check the latest outcomes from 12,441 Hydroxychloroquine sulfate users, or browse all drugs. What is Doxycycline? Doxycycline has active ingredients of doxycycline hyclate. It is often used in acne. Hydroxychloroquine sulfate and Doxycycline drug interactions.. Plaquenil -. Antibiotics and Hydroxychloroquine in Crohn's - Full Text.. Summary Drug interactions are reported among people who take Plaquenil and Doxycycline hyclate together. This study is created by eHealthMe based on reports of 84 people who take Plaquenil and Doxycycline hyclate from Food and Drug Administration FDA, and is updated regularly. eHealthMe has been monitoring drugs and supplements since 2008. May 24, 2019 Use hydroxychloroquine as ordered by your doctor. Read all information given to you. Follow all instructions closely. Take hydroxychloroquine with food or milk. Swallow whole. Do not chew, break, or crush. Keep taking hydroxychloroquine as you have been told by your doctor or other health care provider, even if you feel well. Does Plaquenil Interact with other Medications? Severe Interactions. These medications are not usually taken together. Consult your healthcare professional e.g. doctor or pharmacist for more in.