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Precautions and Warnings With Fesoterodine

There are numerous precautions and warnings with fesoterodine to be aware of before starting treatment, including information on who should not use this drug. You should not take fesoterodine if you have urinary retention, uncontrolled narrow-angle glaucoma, or a condition that slows the emptying of food from your stomach. Before starting fesoterodine, let your healthcare provider know about all other medical conditions you have.

What Should I Tell My Healthcare Provider Before Taking Fesoterodine?

You should talk with your healthcare provider prior to taking fesoterodine fumarate (Toviaz™) if you have:
 
  • Liver disease, including liver failure, cirrhosis, or hepatitis
  • Kidney disease, such as kidney failure (renal failure)
  • Glaucoma
  • Digestive problems (especially those than involve slow emptying of food from the stomach)
  • Myasthenia gravis
  • Difficulty passing urine
  • An enlarged prostate (also known as benign prostatic hyperplasia, or BPH)
  • 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 other medicines you are taking, including prescription and non-prescription medicines, vitamins, and herbal supplements.
 

Specific Fesoterodine Warnings and Precautions

Warnings and precautions to be aware of prior to taking this medication include the following:
 
  • In rare cases, this medication can cause life-threatening swelling of the face, lips, tongue, or throat. This can occur quickly, even after the first dose. Seek immediate medical attention if such swelling occurs.

 

  • Medications like fesoterodine can cause blurred vision, dizziness, and drowsiness. Be sure to see how fesoterodine affects you before driving or operating heavy machinery.
     
  • This medication may make glaucoma worse. If you have glaucoma and take fesoterodine, your healthcare provider may need to monitor you more closely.
     
  • Fesoterodine can slow the digestive system. This can cause problems, especially for people who already have a slow digestive system, due to myasthenia gravis, ulcerative colitis, or other problems.
     
  • The liver and kidneys help to remove fesoterodine from your body. If you have kidney disease, a lower fesoterodine dosage may be recommended. If you have liver disease, you may require extra monitoring by your healthcare provider. This medication is not recommended for people with severe liver problems.
     
  • Fesoterodine can decrease your ability to sweat, which may increase your risk of heat stroke. Be sure to stay well hydrated in the heat.
     
  • This medication may worsen myasthenia gravis. Check with your healthcare provider before taking fesoterodine if you have myasthenia gravis.
     
  • Fesoterodine may potentially interact with a number of other medications (see Drug Interactions With Fesoterodine).
     
  • Fesoterodine is considered a pregnancy Category C medication. This means that it may not be safe for use during pregnancy, although the full risks are not known (see Toviaz and Pregnancy).
     
  • It is not known whether fesoterodine 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 Toviaz and Breastfeeding).
     
5 Questions to Ask Your Doctor About ED

Fesoterodine Drug Information

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