Leflunomide 20mg Tablet is used in the treatment of rheumatoid arthritis and psoriatic arthritis. It helps in slowing down the progression of the disease and provide relief from pain, swelling, and redness. Leflunomide 20mg Tablet can be taken with or without food. You should take it regularly and at the same time each day to get the maximum benefit from it. Keep taking it as recommended by your doctor and complete the dose even if you feel better. Using this medicine may cause some common side effects such as nausea, headache, dyspepsia, rash, diarrhea, increased liver enzymes, and respiratory tract infection. Consult with your doctor if any of these side effects do not go away with time or get worse. Your doctor may help with ways to reduce or prevent these symptoms. To make sure the medicine is safe for you, before taking this medicine, let your doctor know if you have any problems with your heart, kidneys, or liver. Also, tell your doctor of all the other medicines you are taking. Your doctor may recommend regular blood tests to check and make sure the medicine is not harming your liver or effecting your blood counts. Pregnant and breastfeeding mothers should consult with their doctors before taking the medicine.