Fareston Warnings and Precautions
By carefully reviewing the warnings and precautions for Fareston, you can help minimize your risk for potentially dangerous complications. For example, this prescription drug carries the risk of drug interactions, heart problems, and serious side effects, among other things. Your healthcare provider will need to know about your medical history, including any problems you might have with low blood cell counts, before beginning treatment.
You should talk with your healthcare provider prior to taking Fareston® (toremifene citrate) if you have:
- Heart rhythm problems, including a condition known as QT prolongation or long QT syndrome
- Been told you have an electrolyte imbalance, such as low blood potassium (hypokalemia) or magnesium (hypomagnesemia)
- Congestive heart failure
- Unexplained vaginal bleeding
- A history of a blood clot or stroke
- Had endometrial hyperplasia (unusual growth and thickening of the lining of the uterus)
- Cancer that has spread to your bone
- Liver disease, such as hepatitis, cirrhosis, or liver failure
- Low white blood cells or platelets
- Any allergies, including to foods, dyes, or preservatives.
Also, let your healthcare provider know if you are:
- Pregnant or thinking of becoming pregnant
Make sure to tell your healthcare provider about all other medications you are taking, including prescription and nonprescription medicines, vitamins, and herbal supplements.