FORTEO may cause serious side effects, including:
- Bone cancer (osteosarcoma): Tell your healthcare provider right away if you have pain in your bones, pain in any areas of your body that does not go away, or any new or unusual lumps or swelling under your skin that is tender to touch.
- Increased calcium in your blood. Tell your healthcare provider if you have nausea, vomiting, constipation, low energy, or muscle weakness. These may be signs there is too much calcium in your blood.
- Worsening of your kidney stones. If you have or have had kidney stones, your healthcare provider may check the calcium levels in your urine while you use FORTEO to see if there is worsening of this condition.
- Decrease in blood pressure when you change positions. Some people may feel dizzy, get a fast heartbeat, or feel light-headed right after the first few doses of FORTEO. This usually happens within 4 hours of taking FORTEO and goes away within a few hours. For the first few doses, give your injections of FORTEO in a place where you can sit or lie down right away if you get these symptoms. If your symptoms get worse or do not go away, contact your healthcare provider before you continue using FORTEO.
The most common side effects of FORTEO include: pain, nausea, and joint aches.
These are not all the possible side effects of FORTEO. For more information, ask your healthcare provider or pharmacist. Call your doctor for medical advice about side effects. You are encouraged to report side effects of prescription drugs to the Food and Drug Administration (FDA). Visit www.fda.gov/medwatch or call 1-800-FDA-1088.