Forteo Warnings and Precautions

Let your healthcare provider know if you have high blood calcium, bone cancer, or kidney disease before starting Forteo. Warnings and precautions also include being aware that the drug could cause dizziness or fainting during the first few doses, watching out for potential drug interactions, and avoiding Forteo if you are allergic to any components of the medication.

Forteo: What Should I Tell My Healthcare Provider?

You should talk with your healthcare provider prior to taking Forteo™ (teriparatide) if you have:
 
  • High blood calcium (hypercalcemia)
  • Unexplained high alkaline phosphate levels in the blood
  • Paget's disease of the bone
  • Undergone radiation treatments
  • Bone cancer (or have had bone cancer in the past)
  • Kidney disease, liver disease, or heart disease
  • Any allergies, including allergies to food, dyes, or preservatives.
     
Also, let your healthcare provider know if you are:
 
  • Pregnant or thinking of becoming pregnant
  • Breastfeeding.
     
Make sure to tell your healthcare provider about all medicines you are taking, including prescription and non-prescription medicines, vitamins, and herbal supplements.
 

Specific Forteo Warnings and Precautions

Warnings and precautions to be aware of prior to taking Forteo include the following:
 
  • Forteo increases the risk of bone cancer in rats. The risk increases with the dosage and the duration of use. It is not known whether Forteo increases the risk of bone cancer in humans. You may be more susceptible to bone cancer (and, therefore, should not take Forteo) if you:
 
    • Have Paget's disease of the bone
    • Have unexplained high alkaline phosphate levels in the blood
    • Are a child whose bones are still growing
    • Have had radiation therapy that affected your skeleton.
 
  • Forteo can increase the level of calcium in your blood. Therefore, you should not take the drug if you already have high blood calcium (known medically as hypercalcemia).
 
  • Forteo has not been studied for long-term use (more than two years). At this time, people are generally advised to take the drug for two years or less.
     
  • The medication can cause lightheadedness, dizziness, or fainting, usually during the first few doses. You should be sitting down for your first few Forteo doses, just in case you faint.
     
  • Forteo has not been adequately studied in people with kidney, liver, or heart disease. Talk to your healthcare provider before taking the drug if you have any of these problems.
     
  • Forteo can potentially interact with a few other medications (see Forteo Drug Interactions).
     
  • Forteo is considered a pregnancy Category C medication. This means that it may not be safe for use during pregnancy (see Forteo and Pregnancy).
     
  • It is not known whether Forteo passes through breast milk. Therefore, if you are breastfeeding or plan to start, discuss this with your healthcare provider prior to taking the drug (see Forteo and Breastfeeding).
     
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