What are the Side Effects of Propecia? | Hair Loss & Hair Transplant Surgery Guide


For many people, Propecia does not cause any side effects that affect their daily life. However, there are a number of side effects that may occur from taking this drug. The most worrying is an allergic reaction to Finasteride and it is important that you seek medical attention if this happens. If an allergic reaction has occurred, you might experience swelling in your tongue or mouth, hives or rashes on the skin.

Another side effect that most men worry about is side effects of a sexual nature. These may include erectile dysfunction, a low libido or simply a decreased amount of ejaculation. Although the majority of Propecia users will not experience a change in their sexual function, it has been a reported side effect. If you are worried, then by all means consult a doctor who may prescribe erectile dysfunction drugs or prescribe an alternative treatment for your hair loss.

One important side effect to look out for is tenderness in the breasts. There has been a possible link between Propecia and breast cancer so it is important to check your breasts regularly in case you experience any of the following symptoms:

  • Breast enlargement
  • Breast tenderness
  • Any unusual lumps
  • Nipple discharge

If you are experiencing any of these symptoms then consult your doctor immediately.

There are a few other side effects you may experience from using Propecia. These include:

  • Dizziness – sometimes you may feel like you might pass out, especially if you stand up to quickly. The best way to resolve this is simply avoid standing up too fast from certain positions so that you do not experience a head rush and dizziness.
  • Swelling in extremities such as the hands and the feet.
  • Headaches
  • Rash
  • Cold sweats or chills
  • Depression – It is unknown whether Propecia has an association with depression but if you do experience depression, it may be because of the side effects that Propecia can cause and you should speak to your doctor for more information.

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