Common side effects of Gilenya (fingolimod) may include:
- pain in your arms or legs;
- cough, stuffy nose, flu symptoms; or
- abnormal liver function tests.
The above side effects should not alarm you.
Serious side effects of Gilenya (fingolimod) may include:
- shiny nodules on your skin, sores that do not heal, unusual moles that change in color or size;
- blurred vision, eye pain, or a blind spot or shadows in the center of your vision (may occur 3 to 4 months after you start taking fingolimod);
- new or worsened breathing problems;
- sores in your mouth and throat, cold sores, sores on your genital or anal area;
If you have any of the above side effects, contact your doctor right away.
Signs to watch for:
blood vessel problems in the brain - headache, confusion, change in mental status, sudden vision loss, seizure (convulsions);
heart problems - chest pain, slow or irregular heartbeats, and feeling dizzy or tired;
liver problems -nausea, upper stomach pain, tiredness, loss of appetite, dark urine, jaundice (yellowing of the skin or eyes); or
signs of infection - fever, chills, body aches, tiredness, nausea and vomiting, neck stiffness, increased sensitivity to light.