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.
Potential side effects of anti-malarial drugs include: 1  Skin rashes and pigment change. 2  Dry skin. 3  Loss of appetite.  Abdominal 1  bloating. Upset stomach.  Stomach 1  cramps. Retinal damage â There is a small chance that retinal damage will occur while taking hydroxychloroquine (Plaquenil) or chloroquine (Aralen).  Less common side effects: Headaches.