Mycophenolate Mofetil is also known as cellcept which becomes an active pharmacological agent by using mycophenolic acid which is an immuno-suppressant medication used to prevent rejection following organ transplantation of kidney, liver or heart and helps to protect them from any attack from immune system. Mycophenolate Mofetil can be used with other medications to weaken the defense system of body. It may lead to side effects such as constipation, nausea, headache, diarrhea, vomiting, stomach upset, gas, tremor, dizziness and drowsiness. Kindly contact your doctor if you suffer any serious bad effects like irregular heartbeat, easy bleeding, swelling of the feet and ankles.