Enzalutamide Capsules 80 Mg

Q1: What is Enzalutamide 80mg used for?

Enzalutamide 80mg capsules provide the same indication as 40mg — treating metastatic castration-resistant prostate cancer, non-metastatic CRPC, and metastatic castration-sensitive prostate cancer — with the advantage of fewer capsules per dose.

Q2: What is the advantage of 80mg over 40mg capsules?

Two 80mg capsules provide the full 160mg daily dose versus four 40mg capsules. This reduces the daily pill burden from 4 to 2 capsules, improving convenience and adherence.

Q3: How is Enzalutamide 80mg taken?

Take two 80mg capsules (160mg total) once daily, with or without food. Swallow capsules whole — do not crush, chew, or open them.

Q4: How does Enzalutamide work against prostate cancer?

Enzalutamide blocks androgen receptor (AR) signaling at three steps: preventing androgen binding to the receptor, blocking nuclear translocation of the AR, and inhibiting AR-driven gene transcription — a more complete block than older anti-androgens.

Q5: Does the 80mg dose have different side effects?

The side effect profile is the same as the 40mg strength since the total daily dose (160mg) is identical. Common effects include fatigue, hot flashes, hypertension, diarrhea, and dizziness.

Q6: Is the seizure risk the same at 80mg?

Yes. The seizure risk (~1%) applies regardless of capsule strength since both deliver the same total 160mg daily dose. Patients with history of seizures should not use this medicine.

Q7: What drug interactions apply to Enzalutamide 80mg?

All interactions are the same as 40mg. Enzalutamide is a strong CYP3A4 and moderate CYP2C19 inducer that can reduce levels of many concurrent medications significantly. Review all medications with your oncologist.

Q8: What is the treatment duration?

Treatment continues until disease progression or intolerable side effects. Your oncologist will monitor PSA, imaging, and tolerability to assess ongoing benefit.

Q9: What serious side effects require emergency care?

Seek immediate care for seizures, falls causing fractures, posterior reversible encephalopathy syndrome (PRES), or cardiovascular events. Cognitive changes should also be reported to your doctor.

Q10: Is Enzalutamide 80mg safe for elderly patients?

Falls and fractures are more common in older patients on enzalutamide. Bone density monitoring, fall risk assessment, and calcium/vitamin D supplementation are commonly recommended in this population.

Q11: What monitoring is required?

Regular PSA, imaging assessments, blood pressure monitoring, liver function, and bone density checks are needed. Any new neurological symptoms should prompt immediate evaluation.

Q12: Is a prescription required?

Yes. Enzalutamide 80mg is a prescription-only specialist oncology drug requiring an oncologist's evaluation, treatment staging, and ongoing monitoring.