Casodex is a brand-name medication that contains the active ingredient bicalutamide. It is a non-steroidal antiandrogen used as part of hormone-therapy regimens for certain prostate cancers. In Hong Kong, Casodex is available as a prescription pill in a single strength of 50 mg.
Bicalutamide blocks the androgen receptor, preventing the binding of testosterone and dihydrotestosterone. By inhibiting this receptor:
The drug is absorbed well after oral administration, reaching peak plasma concentrations within 2-4 hours. It is metabolized primarily by the liver (CYP3A4) and has an elimination half-life of about 6 days, allowing once-daily dosing.
Approved medical uses (Hong Kong/International):
These indications are approved by major regulatory agencies such as the US FDA, the European Medicines Agency (EMA), and are recognized by Hong Kong’s Department of Health.
Current peer-reviewed literature and clinical guidelines do not support routine off-label use of bicalutamide for conditions outside the approved prostate-cancer indications. Any experimental use should occur only within a controlled clinical-trial setting and under strict medical supervision.
Absolute contraindications
Relative contraindications / cautions
Special populations
This article provides educational information about Casodex and is not a substitute for professional medical advice. Treatment decisions, including use for unapproved indications, must be made under the guidance of a qualified healthcare provider. The content is intended for informational purposes and does not constitute medical recommendations. Always consult a physician before starting, stopping, or changing any medication regimen.
Casodex is designed to be combined with LHRH agonists or after surgical castration. Concurrent use with other anti-androgens is generally avoided because it can increase toxicity without added benefit. Always discuss medication combinations with your oncologist.
Breast tenderness or enlargement is a common side effect. Notify your healthcare provider; they may recommend monitoring, temporary dose adjustment, or supportive measures such as a well-fitting bra.
Bicalutamide is largely eliminated by the liver, so mild to moderate renal impairment does not usually require dose changes. However, individual health status should be evaluated by a clinician.
The duration is individualized based on cancer response and tolerability. Some patients remain on therapy for several years under continuous monitoring.
Taking the pill with a meal improves gastrointestinal tolerance and does not significantly alter overall absorption. Consistency with food intake is recommended.
Hormonal therapies can influence mood in some individuals. If you notice persistent sadness, anxiety, or suicidal thoughts, seek medical attention promptly.
Both contain 50 mg of bicalutamide in a round, white tablet. Brand-specific imprint codes may differ; Casodex tablets typically bear the word “CASODEX” on one side.
Casodex is a prescription medication. Carry the original prescription label and a copy of the prescribing doctor’s note when traveling, especially for international flights.
Both approaches aim to suppress androgen activity. Clinical studies show that combined therapy (Casodex + LHRH agonist) provides similar disease control to surgical castration, with the advantage of being reversible.
Coverage varies by individual health plans and public-sector schemes. Patients should verify benefit details with their insurer or the Hospital Authority’s pharmacy department.
