Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. Serious side effects of plaquenil Plaquenil and trintellix interactions Splitting hydroxychloroquine Side effects which can occur in patients taking hydroxychloroquine Plaquenil or chloroquine Aralen include More common - diarrhoea, headache, loss of appetite, nausea or vomiting, stomach cramping or pain. Common side effects linked with hydroxychloroquine use include nausea, loss of appetite, and headache. Nausea, blurred vision, and vomiting are common side effects of chloroquine use. More serious side effects associated with using hydroxychloroquine and chloroquine include fast heartbeat, ringing in the ears, vision changes, and muscle weakness. Appetite decreased is found among people who take Plaquenil, especially for people who are female, 60+ old, have been taking the drug for 1 - 6 months, also take medication Enbrel, and have Pain. Taking hydroxychloroquine long-term or at high doses may cause irreversible damage to the retina of your eye. Hydroxychloroquine is also an antirheumatic medicine and is used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. Hydroxychloroquine loss of appetite Plaquenil and appetite Rheumatoid Arthritis Forums., What Is the Difference between Hydroxychloroquine and. Hydroxy chloroquine 200 mg SIDE EFFECTS Nausea, stomach cramps, loss of appetite, diarrhea, dizziness, or headache may occur. If any of these effects persist or worsen, notify your doctor or pharmacist promptly. Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. HYDROXYCHLOROQUINE - ORAL Plaquenil side effects.. Will you have Appetite decreased with Plaquenil - eHealthMe. Side Effects of Plaquenil Hydroxychloroquine, Warnings, Uses. HYDROXYCHLOROQUINE is used to treat rheumatoid arthritis and systemic lupus erythematosus. It is also used to treat malaria. The lowest GoodRx price for the most common version of hydroxychloroquine is around $18.60, 90% off the average retail price of $196.17. Loss of appetite, tiredness, weakness, or headache are uncommon side effects and typically go away over time. Rare complications The greatest concern people have when taking hydroxychloroquine is related to vision. In my case, the loss of appetite predates the meds. For me, I think I just found out that almost everything I enjoy eating caused some kind of physical misery. Everything seemed to make my mouth dryer and make it burn more, or create havoc with my stomach.