Naftopidil

Naftopidil

Naftopidil is a drug used in the treatment of benign prostatic hyperplasia (BPH). It belongs to the class of alpha-1 blockers, which work by relaxing the muscles in the prostate and bladder neck, making it easier to urinate.

Pharmacology

Naftopidil is an alpha-1 adrenergic receptor antagonist. It works by blocking the action of norepinephrine on the alpha-1 adrenergic receptors, which are found in high concentrations in the prostate and bladder neck. This causes relaxation of these muscles, reducing the symptoms of BPH.

Clinical Use

Naftopidil is primarily used in the treatment of BPH. It can help to reduce symptoms such as difficulty in beginning the flow of urine, weak stream, and the need to urinate frequently or urgently. It is usually prescribed when these symptoms are causing significant discomfort or complications, such as urinary tract infections or kidney problems.

Side Effects

Common side effects of Naftopidil include dizziness, headache, and postural hypotension. Less common side effects can include nasal congestion, fatigue, and sexual dysfunction. As with all medications, the benefits and risks should be discussed with a healthcare provider before starting treatment.

History

Naftopidil was first approved for use in Japan in 1999. It is currently available in several countries, including Japan, South Korea, and India.

See Also

• Alpha-1 blocker
• Benign prostatic hyperplasia
• Norepinephrine