Bicalutamide 50mg

Bicalutamide 50mg – Quick Overview

Bicalutamide 50mg is a prescription oral androgen receptor inhibitor used together with an LHRH analog to treat metastatic prostate cancer in men. CASODEX 50 mg is an androgen receptor inhibitor indicated for use in combination therapy with a luteinizing hormone-releasing hormone (LHRH) analog for the treatment of Stage D2 metastatic carcinoma of the prostate. Bicalutamide 50mg works by blocking testosterone’s effects on prostate cancer cells. Bicalutamide 50mg is taken as prescribed, once daily, and requires periodic liver monitoring by a doctor.

Medical Supervision & Regulatory Status

Bicalutamide 50mg is a prescription-only medication in the United States and is not available over the counter. Bicalutamide 50mg carries the pharmacologic classification of Androgen Receptor Antagonist and Androgen Receptor Inhibitor. Because Bicalutamide 50mg has been associated with serious liver injury in rare cases, treatment should be started and monitored by a physician experienced in prostate cancer care, with regular liver function testing.

Clinical Context

Metastatic prostate cancer is a condition in which cancer cells have spread beyond the prostate and rely on testosterone to continue growing. Left uncontrolled, this hormone-driven growth can accelerate disease progression and worsen symptoms and outcomes.

Bicalutamide 50mg is prescribed specifically alongside LHRH analog therapy, which reduces the body’s testosterone production, while Bicalutamide 50mg blocks any remaining androgen activity at the receptor level. CASODEX is a non-steroidal androgen receptor inhibitor that competitively inhibits the action of androgens by binding to cytosol androgen receptors in the target tissue; prostatic carcinoma is known to be androgen sensitive and responds to this blockade.

Within combination hormone therapy, Bicalutamide 50mg plays a specific role: providing more complete androgen blockade and helping prevent a temporary testosterone flare that can occur when LHRH therapy is first initiated.

How Bicalutamide 50mg Works

Bicalutamide 50mg belongs to a drug class called nonsteroidal androgen receptor inhibitors (antiandrogens). Bicalutamide acts by binding to intracellular androgen receptors and competitively inhibiting the action of endogenous androgens on sensitive tissue, including testes, prostate, breast, skin, and hypothalamus.

In simple terms, Bicalutamide 50mg attaches to the same receptors that testosterone would normally use, stopping testosterone from signaling prostate cancer cells to grow. Its antiandrogenic activity is almost exclusively exhibited by the R-enantiomer of bicalutamide, while the S-enantiomer is essentially inactive.

What is Bicalutamide 50mg?

• Drug Class: Nonsteroidal androgen receptor inhibitor (antiandrogen)
• Active Ingredient: Bicalutamide
• Mechanism: Competitively blocks androgen receptor binding, preventing testosterone from stimulating prostate cancer cell growth
• Form: White, film-coated oral tablet
• Dosing Frequency: Once daily
• Regulatory Status: FDA-approved; prescription-only

Uses / Indications

• Stage D2 metastatic prostate cancer — used in combination with an LHRH analog to block testosterone’s effect on cancer cell growth. Bicalutamide 150 mg daily is not approved for use alone or with other treatments.

This is the only FDA-approved use for Bicalutamide 50mg. Any other use of Bicalutamide 50mg should only be considered under a physician’s explicit guidance.

How to Use / Dosage

Your doctor determines your exact Bicalutamide 50mg dosing plan — do not adjust it yourself. The recommended dose for bicalutamide therapy in combination with an LHRH analog is one 50 mg tablet once daily (morning or evening), with or without food, and it is recommended that bicalutamide tablets be taken at the same time each day.

• Timing: Take Bicalutamide 50mg once daily, at the same time each morning or evening, with or without food
• Missed dose: If you miss a dose of Bicalutamide 50mg, take it as soon as you remember unless it’s close to your next scheduled dose — do not double up; contact your doctor if unsure
• Do not stop suddenly: Treatment with Bicalutamide 50mg should continue alongside your LHRH analog as directed; do not stop without consulting your physician

Side Effects

Most patients tolerate Bicalutamide 50mg reasonably well, though side effects are common and should be discussed with your prescriber.

Common side effects include hot flashes, general or back/pelvic/abdominal pain, weakness, constipation, nausea, and diarrhea. Adverse reactions that occurred in more than 10% of patients receiving bicalutamide plus an LHRH-A were hot flashes, pain (including general, back, pelvic and abdominal), asthenia, constipation, infection, nausea, peripheral edema, dyspnea, diarrhea, hematuria, nocturia and anemia.

Serious side effects can include liver injury, severe allergic reactions, and blood sugar changes. Severe hepatic injury and fatal hepatic failure have been observed with bicalutamide.

Emergency Warning Signs — seek medical care immediately if you experience:

• Yellowing of the skin or eyes (jaundice)
• Signs of severe allergic reaction, including swelling of the face or throat (angioedema) or hives
• Unusual bruising or bleeding, especially if taking blood thinners
• Increased thirst, hunger, or urination (possible high blood sugar)
• Severe shortness of breath
• Blood in the urine

Warnings & Precautions

Bicalutamide 50mg is contraindicated in patients with a known hypersensitivity to bicalutamide or any tablet component, and in women, including those who are or may become pregnant. CASODEX is contraindicated in any patient who has shown a hypersensitivity reaction to the drug or any of the tablet’s components, and hypersensitivity reactions including angioneurotic edema and urticaria have been reported; CASODEX has no indication for women and should not be used in this population, and is contraindicated in women, including those who are or may become pregnant.

Regarding drug interactions, Bicalutamide 50mg can increase the effects of warfarin and other coumarin anticoagulants, so PT/INR should be closely monitored in patients already on these medications. R-bicalutamide is an inhibitor of CYP 3A4; therefore, caution should be used when bicalutamide is co-administered with CYP 3A4 substrates, and PT/INR should be closely monitored in patients already receiving coumarin anticoagulants who are started on bicalutamide.

Bicalutamide 50mg is not intended for use in women and should not be taken during pregnancy. Special populations requiring caution include patients with severe hepatic impairment, where the half-life of the active form of Bicalutamide 50mg increases, though no dose adjustment is typically required; no dosage adjustment is necessary for patients with mild to moderate hepatic impairment, and although there is a 76% increase in the half-life of the active enantiomer of bicalutamide in patients with severe liver impairment, no dosage adjustment is generally necessary. Ongoing monitoring includes periodic liver function tests and PSA level checks to assess treatment response.

Who Should Not Use This Medication

• Patients with a known allergy or hypersensitivity to bicalutamide or any tablet ingredient
• Women, particularly those who are or may become pregnant
• Patients with a history of severe hepatic dysfunction, without close medical supervision
• Patients on coumarin anticoagulants who cannot commit to closer monitoring
• Anyone not concurrently receiving appropriate LHRH analog therapy as prescribed

Storage Instructions

• Store bicalutamide tablets between 20°C to 25°C (68°F to 77°F)
• Keep in original packaging, away from excess moisture and light
• Keep bicalutamide tablets and all medicines out of the reach of children
• Do not use past the expiration date printed on the packaging

Frequently Asked Questions

Is Bicalutamide 50mg available over the counter?

No, Bicalutamide 50mg is not available over the counter in most countries, including the United States. It requires a valid prescription and ongoing physician supervision.

Does Bicalutamide 50mg require a prescription?

Yes, Bicalutamide 50mg requires a prescription in the U.S. and most countries. A doctor must evaluate your condition and prescribe it alongside appropriate LHRH analog therapy.

How long does Bicalutamide 50mg take to work?

Bicalutamide 50mg begins acting within the body relatively quickly, but meaningful cancer response, such as changes in PSA levels, is typically assessed over weeks to months of combined therapy.

Is it safe to stop taking Bicalutamide 50mg suddenly?

No, Bicalutamide 50mg should not be stopped without consulting your physician, since it works together with LHRH therapy to control prostate cancer growth.

What happens if I miss a dose of Bicalutamide 50mg?

Take the missed dose as soon as you remember, unless it’s close to your next scheduled dose — in that case, skip it and resume your regular schedule without doubling up.

How can I order Bicalutamide 50mg online?

A valid prescription is required to order Bicalutamide 50mg. Typically, you upload your prescription or have your doctor send it directly to a licensed pharmacy, which then ships the medication to your home; always verify the pharmacy is licensed before ordering.

What is the cost of Bicalutamide 50mg without insurance?

The cost without insurance depends on the seller, brand availability, and pack size, and may also vary by location and available discounts. Generic Bicalutamide 50mg is generally more affordable than brand-name Casodex.

Resources

• DailyMed (NIH) – BICALUTAMIDE Tablet Label: https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=7c295b64-ec39-42ec-9f02-da5b42e775e1
• MedlinePlus – Bicalutamide: https://medlineplus.gov/druginfo/meds/a695008.html
• FDA – CASODEX (Bicalutamide) Prescribing Information: https://www.accessdata.fda.gov/drugsatfda_docs/label/2009/079089s000lbl.pdf

Medical Disclaimer:

This content is for informational purposes only and does not constitute medical advice, diagnosis, or treatment. Consult a qualified specialist or physician before using Bicalutamide 50mg.