Listeriosis is a disease caused by infection with a gram-positive, rod-shaped bacterium called Listeria monocytogenes. Listeria monocytogenes is ubiquitous, and it is usually found in soil, water, and decaying vegetation.
Common side effects of Plaquenil include. 1  nausea, 2  vomiting, 3  stomach pain or cramps,  loss of 1  appetite, weight loss, 2  diarrhea, dizziness,  spinning 1  sensation, headache,  ringing in 1  your ears, mood  changes, 1  nervousness, irritability,  skin rash, 1  itching,  or. hair loss.
To make sure Plaquenil is safe for you, tell your doctor if you have: 1  a history of vision changes or damage to your retina caused by an anti-malaria medication; 2  heart disease, heart rhythm disorder (such as long QT syndrome); 3  diabetes; 4  a stomach disorder; 5  an allergy to quinine; 6  liver or kidney disease; 7  psoriasis; 8  alcoholism; or.