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What is Apalutamide: Uses, Dosage, Side Effects and More
What is Apalutamide: Uses, Dosage, Side Effects and More

Health Library

What is Apalutamide: Uses, Dosage, Side Effects and More

October 10, 2025


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Apalutamide is a prescription medication that helps treat advanced prostate cancer by blocking the effects of testosterone and other male hormones. Your doctor might recommend this medicine when prostate cancer has spread to other parts of your body or when there's a high risk it might spread soon.

This medication belongs to a class of drugs called androgen receptor inhibitors. Think of it as putting up a strong barrier that prevents hormones from fueling cancer cell growth. Many men find it helps slow down their cancer's progression while maintaining their quality of life.

What is Apalutamide?

Apalutamide is an oral cancer medication that specifically targets hormone-sensitive prostate cancer cells. It works by blocking androgen receptors, which are like doorways that male hormones use to enter and activate cancer cells.

The medication comes as tablets that you take by mouth once daily. It's designed to be a long-term treatment that works alongside your body's natural processes to fight cancer growth. Your oncologist will monitor how well it's working through regular blood tests and imaging studies.

Unlike some cancer treatments, apalutamide is considered a targeted therapy rather than traditional chemotherapy. This means it's designed to attack cancer cells more precisely while causing fewer side effects to healthy cells.

What is Apalutamide Used For?

Apalutamide treats two main types of advanced prostate cancer situations. First, it helps men with metastatic castration-resistant prostate cancer, which means the cancer has spread despite other hormone treatments.

Second, doctors prescribe it for non-metastatic castration-resistant prostate cancer when there's a high risk the cancer might spread. In this case, it acts as a preventive measure to delay the cancer's progression to other parts of your body.

Your doctor might also recommend apalutamide alongside other treatments like hormone therapy or radiation. The goal is always to slow cancer growth, reduce symptoms, and help you maintain the best possible quality of life.

How Does Apalutamide Work?

Apalutamide works by blocking testosterone and other male hormones from reaching prostate cancer cells. These hormones normally act like fuel for many prostate cancers, helping them grow and spread throughout your body.

The medication binds to androgen receptors on cancer cells, essentially locking the door so hormones can't get in. Without this hormonal fuel, cancer cells struggle to multiply and spread as aggressively as they would otherwise.

This is considered a moderately strong cancer medication that's quite effective for hormone-sensitive prostate cancers. Most men see measurable improvements in their cancer markers within the first few months of treatment, though individual results can vary.

How Should I Take Apalutamide?

Take apalutamide exactly as your doctor prescribes, usually once daily at the same time each day. You can take it with or without food, but try to be consistent with your choice to help your body absorb it predictably.

Swallow the tablets whole with a full glass of water. Don't crush, chew, or break them, as this can affect how the medication is released in your body. If you have trouble swallowing pills, talk to your doctor about strategies that might help.

It's perfectly fine to take apalutamide with milk, juice, or other beverages if that makes it easier for you. Some men find taking it with breakfast helps them remember their daily dose and reduces any stomach upset.

How Long Should I Take Apalutamide For?

Most men take apalutamide for months or years, depending on how well their cancer responds to treatment. Your doctor will monitor your progress through regular blood tests and scans to determine the best duration for your specific situation.

You'll typically continue taking the medication as long as it's helping control your cancer without causing unbearable side effects. Some men take it for several years, while others might need to switch to different treatments if their cancer develops resistance.

Never stop taking apalutamide suddenly without talking to your doctor first. Even if you're feeling well, the medication is likely working behind the scenes to keep your cancer under control.

What Are the Side Effects of Apalutamide?

Like all cancer medications, apalutamide can cause side effects, though not everyone experiences them. The good news is that most side effects are manageable with proper support from your healthcare team.

Here are the most common side effects you might experience while taking apalutamide:

  • Fatigue and feeling more tired than usual
  • Joint and muscle pain or stiffness
  • Hot flashes and night sweats
  • Loss of appetite and weight loss
  • Skin rashes or dry skin
  • Diarrhea or changes in bowel movements
  • High blood pressure

Most of these side effects are mild to moderate and often improve as your body adjusts to the medication. Your doctor can suggest ways to manage them effectively.

Some less common but more serious side effects require immediate medical attention. While these are rare, it's important to be aware of them:

  • Seizures or unusual changes in brain function
  • Severe falls or balance problems
  • Signs of heart problems like chest pain or shortness of breath
  • Severe skin reactions or widespread rashes
  • Significant changes in mood or mental state

If you experience any of these serious symptoms, contact your doctor immediately or seek emergency medical care. Remember, your healthcare team is there to help you navigate any challenges that come up.

Who Should Not Take Apalutamide?

Apalutamide isn't suitable for everyone, and your doctor will carefully review your medical history before prescribing it. Women who are pregnant or might become pregnant should never take this medication, as it can cause serious harm to developing babies.

People with certain medical conditions need special consideration before starting apalutamide. Your doctor will evaluate your overall health to make sure it's safe for you:

  • History of seizures or brain disorders
  • Severe heart problems or recent heart attacks
  • Liver disease or significantly elevated liver enzymes
  • Severe kidney problems
  • History of falls or significant balance issues

Additionally, some medications can interact with apalutamide, potentially making it less effective or increasing side effects. Always tell your doctor about all medications, supplements, and herbal products you're taking.

Apalutamide Brand Names

Apalutamide is most commonly known by its brand name Erleada. This is the version you'll typically receive from your pharmacy, manufactured by Janssen Pharmaceuticals.

Currently, Erleada is the primary brand available in most countries, though generic versions may become available in the future. Your insurance coverage and pharmacy may affect which specific version you receive.

Apalutamide Alternatives

Several other medications work similarly to apalutamide for treating advanced prostate cancer. Your doctor might consider these alternatives if apalutamide isn't right for you or stops working effectively.

The main alternatives include enzalutamide (Xtandi), darolutamide (Nubeqa), and bicalutamide (Casodex). Each has slightly different benefits and side effect profiles, so your doctor will help you choose the best option for your specific situation.

Other treatment approaches might include chemotherapy, immunotherapy, or newer targeted therapies. The best choice depends on your cancer's characteristics, your overall health, and your personal preferences.

Is Apalutamide Better Than Enzalutamide?

Both apalutamide and enzalutamide are highly effective medications for advanced prostate cancer, and neither is definitively "better" than the other. They work in similar ways but have some differences in their side effect profiles and specific uses.

Apalutamide may cause fewer cognitive side effects like memory problems or confusion compared to enzalutamide. However, enzalutamide has been studied longer and has more extensive research data supporting its use in various prostate cancer scenarios.

Your doctor will consider factors like your specific type of prostate cancer, other health conditions, current medications, and personal preferences when choosing between these options. Both medications have helped many men live longer, healthier lives with advanced prostate cancer.

Frequently asked questions about Apalutamide (oral route)

Apalutamide can be used in people with heart disease, but it requires careful monitoring. The medication can sometimes raise blood pressure and may increase the risk of heart rhythm problems in some individuals.

Your doctor will likely want to monitor your heart function more closely if you have existing heart problems. They might recommend regular blood pressure checks, heart rhythm monitoring, or periodic heart function tests while you're taking apalutamide.

If you accidentally take more than your prescribed dose, contact your doctor or poison control center immediately. Taking too much apalutamide can increase your risk of serious side effects, particularly seizures.

Don't wait to see if you feel okay. Even if you're not experiencing symptoms, it's important to get medical advice right away. Your doctor can monitor you and provide appropriate care if needed.

If you miss a dose and it's been less than 12 hours since your usual time, take it as soon as you remember. If it's been more than 12 hours, skip the missed dose and take your next dose at the regular time.

Never take two doses at the same time to make up for a missed dose. This can increase your risk of side effects without providing additional benefit. If you frequently forget doses, consider setting phone reminders or using a pill organizer.

You should only stop taking apalutamide when your doctor tells you it's appropriate. This usually happens if the medication is no longer controlling your cancer effectively, if you're experiencing intolerable side effects, or if your cancer has responded so well that a treatment break is possible.

Some men take apalutamide for years, while others might need to switch treatments sooner. Your doctor will use blood tests, scans, and how you're feeling to determine the best time to stop or change your treatment.

Moderate alcohol consumption is generally okay while taking apalutamide, but it's best to discuss this with your doctor. Alcohol can potentially increase some side effects like dizziness or fatigue, and it might interfere with how well your body processes the medication.

If you choose to drink alcohol, do so in moderation and pay attention to how you feel. Some men find that alcohol affects them differently while on cancer treatment, so it's important to listen to your body and adjust accordingly.

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