Avodart is the original GlaxoSmithKline preparation containing dutasteride, a dual 5-alpha-reductase inhibitor. The product is supplied as soft gelatin capsules for oral use and is widely used in urological practice as part of benign prostatic hyperplasia (BPH) management under medical supervision.
Dutasteride blocks both isoforms of the 5-alpha-reductase enzyme (type 1 and type 2), which converts testosterone to dihydrotestosterone (DHT). DHT is the main hormonal driver of prostate growth — reducing its levels shrinks the enlarged prostate and improves urinary symptoms over time.
Unlike finasteride (which blocks only the type 2 isoform), dutasteride provides near-complete suppression of DHT — this is the pharmacological reason urologists choose it in specific clinical scenarios.
Avodart is prescribed by urologists as part of comprehensive therapy in cases of:
The medication is prescription-only and should be used under urologist supervision with periodic monitoring.
The most commonly reported adverse reactions include:
Most effects are dose-related and reversible after discontinuation. Medical attention should be sought if side effects persist or worsen.
Important: dutasteride remains detectable in blood for 4–6 months after discontinuation — a blood donation should be avoided for at least 6 months after the last dose.
Both reduce DHT, but via different mechanisms: finasteride blocks only type 2 5-alpha-reductase, while dutasteride blocks both type 1 and type 2 — resulting in deeper DHT suppression. The choice between them is made by the urologist based on the clinical scenario.
Urinary symptoms improve gradually. Prostate volume reduction becomes measurable after 3–6 months of continuous therapy. Full effect may take up to 12 months.
Therapy is long-term: 30 capsules cover about one month, 90 capsules about three months. Patients on stable maintenance therapy typically benefit from the larger pack. The starting period is usually covered by 30-capsule packs until the dose is confirmed.
Dutasteride is not approved for androgenetic alopecia in most jurisdictions; finasteride has the formal indication. Any off-label use must be discussed with a physician — this product page describes approved urological indications only.
Yes. Avodart is a prescription medication. Regular monitoring (PSA, prostate assessment) during therapy is standard urological practice.
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