Medications for BPH (benign prostatic hyperplasia)

Need to know

• What happens icon plus

  What are alpha blockers?

  Alpha blockers are able to relax certain muscles in the bladder and prostate. In doing so, they reduce pressure on the urethra, which in turn improves urine flow. Alpha blockers are not a cure for BPH. But, within six weeks, they can help to improve symptoms by 29-50% and flow rates by 20-30%.

  What are five alpha reductase inhibitors?

  Five-alpha-reductase inhibitors shrink the size of the prostate and, as a result, help to relieve urine obstruction. They do this by stopping the production of DHT, the enzyme needed for the prostate to grow. Five-alpha-reductase inhibitors can take up to six months to be effective.

• How to prepare icon plus

  Your consultant will explain which drug is right for you. They'll also explain any risks or side effects involved.

  The possible side effects of alpha blockers include:

  • tiredness
  • dizziness
  • headaches
  • dry mouth
  • erection
  • ejaculation problems
  • low blood pressure
  • weakness
  • upset stomach
  • nasal congestion

  The possible side effects of five-alpha-reductase inhibitors include:

  • erection and ejaculation problems
  • reduced sex drive.

  You may be asked to attend regular check-ups every three-to-six months while taking the medication. This lets us assess kidney function, symptom scores and the size of your prostate.

• Afterwards icon plus

  Drug treatments for BPH are not a cure and may need to be taken long-term. They also do not guarantee that you won't need surgery at some time in the future.