Eulexin side effects: what to expect and how to stay safe

If you or a loved one has been prescribed Eulexin (flutamide), it helps to know the side effects you might see and which ones need quick action. Eulexin is used mainly for prostate cancer and can work well, but it comes with some predictable reactions and a rare but serious risk to the liver. Below is a straightforward guide so you can spot problems early and keep treatment on track.

Common side effects

Many people notice mild to moderate effects that don’t need stopping the drug. These include nausea, diarrhea, loss of appetite, and stomach discomfort. Hot flashes and tiredness are also common. Some men report reduced sexual desire or erectile problems, and breast tenderness or slight swelling can happen.

These symptoms often show up in the first weeks of treatment and may ease with time. If they bother you, ask your doctor about simple fixes—adjusting timing of the dose, taking medication with food, or using anti-nausea remedies.

Serious risks and what to do

The most important risk with Eulexin is liver injury. While most people won’t have severe problems, some can develop jaundice (yellowing of skin or eyes), very dark urine, severe nausea, belly pain, or unexplained tiredness. If you notice those signs, stop the medication and get medical help right away.

Your doctor should check liver function before you start and repeat tests while you take Eulexin. Be sure you know when your next blood test is and keep it. Don’t ignore symptoms that might look like a routine stomach bug—liver issues can start quietly.

Avoid drinking alcohol while on Eulexin. Alcohol can stress your liver and raise the chance of damage. Also tell your doctor about other medicines or supplements you use—some drugs can interact and make liver problems more likely or change how Eulexin works.

Other rare but serious reactions include allergic reactions, blood count changes, and, less commonly, urinary problems or severe breathlessness. If you experience rash, swelling of face or throat, sudden shortness of breath, fainting, or heavy bleeding, get emergency help.

Who should not take Eulexin? People with known severe liver disease or a history of major liver reactions should avoid it. Pregnant women should not handle crushed tablets—flutamide can harm a developing fetus.

Simple tips to stay safe: get baseline blood tests, keep scheduled liver checks, avoid alcohol, report any jaundice-like symptoms immediately, and share a full list of medicines with your doctor. If side effects become hard to tolerate, there are other treatment options for prostate cancer—ask your care team about alternatives.

Want help preparing questions for your doctor or tracking symptoms between visits? I can help you list the top things to tell your clinician and create a short symptom checklist to bring to appointments.