Finasteride - oral

Patient Medicine Information
Why do I need this medicine?
Finasteride is used on its own or together with other medicines to treat symptoms of an enlarged prostate gland in men. This enlargement of the prostate gland is called Benign Prostate Hypertrophy (BPH).

The enlarged prostate gland may cause problems when you pass urine. This medicine helps to shrink the prostate so as to improve symptoms such as difficulty in passing urine, slow or interrupted flow of urine, frequent urination, and dribbling after passing urine.

Finasteride is also used to treat early stages of male pattern hair loss or baldness.
How do I take this medicine?
Take Finasteride exactly as directed by your doctor or according to the instructions on the label. Do not take more or less than instructed by your doctor.

You may take this medicine with or without food. Try to take it at the same time each day.

Swallow the tablet whole with a glass of water. Do not divide, chew or crush the tablet.

The dose of this medicine will be decided by your doctor. Your doctor will advise you on the treatment timeframe depending on the type and severity of your condition.

Finasteride must be taken regularly for it to be effective. Continue taking this medicine even when you feel better. Do not stop taking it unless instructed by the doctor.
What should I do if I have forgotten to take this medicine?
Take the missed dose as soon as you remember. If it is almost time for your next dose, skip the missed dose and return to your normal dosing schedule.

DO NOT double a dose under any circumstances.

If you often forget to take your medicine, let your doctor and pharmacist know.
When should I not use this medicine?
Finasteride is not indicated for use in women and children.
What should I take note of while taking this medicine?
Inform your doctor if you have the following conditions:
  • prostate cancer
  • urinary problems e.g. difficulty passing urine or decreased urine output
  • liver disease
Finasteride can be absorbed through the skin. Pregnant women or women who may be pregnant must not handle and should avoid any contact with a broken or crushed tablet of this medicine. If accidental contact occurs, wash the affected area immediately with soap and water.

As Finasteride may be excreted in semen, you must use a condom or other effective birth control methods to prevent your partner from getting exposed to this medicine.

Keep your appointments with your doctor. Your doctor needs to monitor your condition and check your response to Finasteride regularly. You may also need to have routine blood tests (e.g. prostate-specific antigen test). Your doctor will advise you about how often you need to have these tests.
What side effects could I experience?
Finasteride may cause any of the following side effects: decreased libido, inability to have or maintain an erection, ejaculation problems, and breast enlargement or tenderness.

Some side effects may need immediate medical help. Alert your doctor quickly if you experience any of the following:
  • rashes, breathlessness, swelling of the face, eyes or mouth
  • changes in your breasts such as lumps, pain, or nipple discharge
  • unusual changes in mood or behaviour (being too depressed)
Inform your doctor if any of these side effects do not go away or are severe, or if you experience other side effects.
Can I take this with other medicines?
Always notify your doctor and pharmacist if you are taking any other medicines, including herbal tonics such as traditional Chinese medicines, supplements and medicines that you buy without a prescription.
What special dietary instructions should I follow?
Avoid alcohol.
How should I store this medicine?
Store in a cool, dry place away from the reach of children.

Medicines must not be used past the expiry date.
This information is independently developed by MIMS based on finasteride - oral and is provided for your reference only. It is not a replacement for and should only be used in conjunction with full consultation with a licensed healthcare professional, the information provided by your pharmacist and/or the manufacturer of the medication. It may not contain all the available information you require and cannot substitute professional medical care, nor does it take into account all individual circumstances. Although great effort has been made to ensure content accuracy, we shall not be held responsible or liable for any claims or damages arising from the use or misuse of the information contained herein, its contents or omissions, or otherwise. Copyright © 2021 MIMS. All rights reserved. Powered by
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