Generic Name: finasteride, Oral tablet

Proscar

All Brands

  • Proscar
SECTION 1 of 4

Highlights for finasteride

Oral tablet
1
FINASTERIDE (fi NAS teer ide) is used to treat benign prostatic hyperplasia (BPH) in men. This is a condition that causes you to have an enlarged prostate. This medicine helps to control your symptoms, decrease urinary retention, and reduces your risk of needing surgery. When used in combination with certain other medicines, this drug can slow down the progression of your disease.
2 3 4
Talk to your healthcare provider if you have any of these conditions.
5
Know what to watch for and get tips for reducing your risks while taking this drug.
SECTION 2 of 4

finasteride Side Effects

Oral tablet

Side effects that you should report to your doctor or health care professional as soon as possible:

  • any signs of an allergic reaction like rash, itching, hives or swelling of the lips or face
  • changes in breast like lumps, pain or fluids leaking from the nipple
  • pain in the testicles

Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):

  • sexual difficulties like decreased sexual desire or ability to get an erection
  • small amount of semen released during sex
SECTION 3 of 4

finasteride May Interact with Other Medications

Oral tablet
  • male hormones like testosterone
Disclaimer: Our goal is to provide you with the most relevant and current information. However, because drugs interact differently in each person, we cannot guarantee that this information includes all possible interactions. This information is not a substitute for medical advice. Always speak with your healthcare provider about possible interactions with all prescription drugs, vitamins, herbs and supplements, and over-the-counter drugs that you are taking.
SECTION 4 of 4

How to Use finasteride

Oral tablet

Take this medicine by mouth with a glass of water. Follow the directions on the prescription label. You can take this medicine with or without food. Take your doses at regular intervals. Do not take your medicine more often than directed. Do not stop taking except on the advice of your doctor or health care professional.

Talk to your pediatrician regarding the use of this medicine in children. Special care may be needed.

What should I tell my health care provider before I take this medicine?

They need to know if you have any of these conditions:

  • liver disease
  • an unusual or allergic reaction to finasteride, other medicines, foods, dyes, or preservatives
  • pregnant or trying to get pregnant
  • breast-feeding
What if I miss a dose?

If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses.

What should I watch for while using this medicine?

Do not donate blood while you are taking this medicine. This will prevent giving this medicine to a pregnant female through a blood transfusion. Ask your doctor or health care professional when it is safe to donate blood after you stop taking this medicine.

Women who are pregnant or may get pregnant must not handle broken or crushed finasteride tablets. The active ingredient could harm the unborn baby. If a pregnant woman comes into contact with broken or crushed tablets she should check with her doctor or health care professional. Exposure to whole tablets is not expected to cause harm as long as they are not swallowed.

Contact your doctor or health care professional if your symptoms do not start to get better. You may need to take this medicine for 6 to 12 months to get the best results.

This medicine can interfere with PSA laboratory tests for prostate cancer. If you are scheduled to have a lab test for prostate cancer, tell your doctor or health care professional that you are taking this medicine.

This medicine may increase your risk of getting some cancers, like breast cancer. Talk with your doctor.

Where should I keep my medicine?

Keep out of the reach of children.

Store at room temperature below 30 degrees C (86 degrees F). Protect from light. Keep container tightly closed. Throw away any unused medicine after the expiration date.

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Last Updated: October 13, 2010

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