Proscar vs. Avodart

Are Proscar and Avodart the Same Thing?

Proscar(finasteride) andAvodart(dutasteride) are used to treat symptoms ofbenign prostatic hyperplasia(BPH) in men with an enlargedprostate.

Both Proscar and Avodart are 5-alpha reductase inhibitors, but Proscar is an inhibitor of only the type II 5a-reductase, while Avodart is an inhibitor of both type I and type II 5a-reductase.

What Are Possible Side Effects of Proscar?

Common side effects of Proscar include:

  • impotence,
  • loss of interest in sex,
  • trouble having anorgasm,
  • abnormalejaculation,
  • swelling in your hands or feet,
  • swelling or tenderness in your breasts,
  • dizziness,
  • weakness,
  • feeling faint,
  • headache,
  • 流鼻涕, or
  • skin rash.

有些男人,Proscar can decrease the amount of semen released during sex. This is harmless. Proscar may also increase hair growth. The sexual side effects of Proscar may continue after you stop taking it. Talk to your doctor if you have concerns about these side effects.

What Are Possible Side Effects of Avodart?

Common side effects of Avodart include:

  • sexual problems (such as decreased sexual interest/ability, decrease in the amount of semen/spermreleased during sex),
  • impotence (trouble getting or keeping an erection),
  • testicle pain or swelling,
  • increased breast size, or
  • breast tenderness.

What Is Proscar?

Proscar (finasteride) is an inhibitor ofsteroidType II 5a-reductase, that works by decreasing the amount of a natural body hormone二氢睾酮(DHT) that causes growth of the prostate, and is used to treat symptoms ofbenignprostatichyperplasia(BPH) in men with an enlarged prostate. Proscar is available ingenericform.

What Is Avodart?

适(dutasteride)是合成4-azasteroidcompound that is a selective inhibitor of both the type 1 and type 2 isoforms of steroid 5 alpha-reductase used to treat benign prostatic hyperplasia (BPH) in men with an enlarged prostate. Avodart helps improve urinary flow and may also reduce the need for prostate surgery later. Avodart is sometimes given with another medication calledtamsulosin(Flomax). Avodart prevents the conversion oftestosteroneto dihydrotestosterone (DHT) in the body. Avodart may be available in generic form.

What Drugs Interact With Proscar?

Proscar may interact with other drugs.

What Drugs Interact With Avodart?

may interact with conivaptan, imatinib,isoniazid, antibiotics,antifungalmedications,antidepressants, heart or blood pressure medications, orHIV/AIDSmedicine.

How Should Proscar Be Taken?

The recommended dose of Proscar is one tablet (5 mg) taken once a day.

How Should Avodart Be Taken?

The recommended dose of Avodart is 1 capsule (0.5 mg) taken once daily.

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References
Medical Editor:John P. Cunha, DO, FACOEP

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