Mitotane (Lysodren®)

Author: Marisa Healy, BSN, RN
Content Contributor: Christina Bach, MBE, LCSW, OSW-C
Last Reviewed: January 25, 2026

Pronounce: MY-toe-TANE

Classification: Adrenal cytotoxic agent

About Mitotane (Lysodren®)

This medication has toxic effects on a certain part of adrenal cortical cells, causing these cells to die. This also lowers how much cortisol your body makes and changes how steroids are metabolized (processed) in your body. You may need to take a steroid (such as hydrocortisone) by mouth to make up for this loss. Your oncology team will monitor you for this side effect. The exact mechanism of action is unknown.

How to Take Mitotane

Mitotane comes as a tablet to take by mouth. It is usually taken three to four times a day. Take mitotane at around the same time every day. The pill should be swallowed whole with a glass of water. Do not crush, chew, or break. Mitotane should be taken with meals that have fat-rich foods, such as milk, chocolate, and oil.

Your care provider will determine your dose, which may change based on the levels in your blood and the side effects you may have. If you miss a dose, take the next dose as scheduled. Do not take two doses to make up for a missed dose. You may need to take a steroid while you are taking mitotane.

It is important to make sure you are taking the correct amount of medication every time. Before every dose, check that what you are taking matches what you have been prescribed.

The blood levels of this medication can be affected by certain foods and medications, so they should be avoided. These include: anti-epileptics, rifabutin, rifampicin, griseofulvin, St. John’s wort, sunitinib, spironolactone, itraconazole, nimodipine, ranolazine, rivaroxaban, tofacitinib, aripiprazole, corticosteroids, linagliptin, quetiapine, among others. This medication can affect the level in your blood of warfarin or other anticoagulants that are used to treat and prevent blood clots. Be sure to tell your healthcare provider about all medications and supplements you take.

Storage and Handling

Store your medication in the original, labeled container at room temperature and in a dry location (unless otherwise directed by your healthcare provider or pharmacist). This medication should not be stored in a pillbox. Keep containers out of reach of children and pets.

If a caregiver prepares your dose for you, they should consider wearing gloves or pour the pills directly from their container into the cap, a small cup, or directly into your hand. They should avoid touching the pills. They should always wash their hands before and after giving you the medication. Pregnant or nursing women should not prepare the dose for you. Ask your oncology team where to return any unused medication for disposal. Do not flush down the toilet or throw in the trash.

Where Do I Get This Medication?

Some cancer medications are only available through specialty pharmacies. Your provider or pharmacist will start this process. Your insurance plan may also affect where you can get your medication. Call your prescription plan provider to find out which specialty pharmacies are in-network.

Insurance Information

This medication may be covered by your prescription plan. If you qualify, you may be able to get financial help through patient assistance programs (PAP). Co-pay cards may also be available to lower your out-of-pocket cost if you have commercial (not Medicare/Medicaid/Tricare) insurance. Your pharmacist, social worker, or navigator can help find resources for financial support.

Possible Side Effects

These are some of the most common or most serious side effects of this medication. Talk with your provider about the side effects you are having and how they can be managed.

Adrenal Changes

This medication can cause adrenal insufficiency or can make existing adrenal insufficiency worse in some patients. Tell your provider if you have any history of adrenal disease. 

If you have any type of severe trauma (like an accident or fall), have an infection, or experience shock while taking mitotane, the medication will need to be stopped. Your body will not respond as it should because of the effect of mitotane on your adrenal glands. Steroids will be given until your adrenal gland works normally again. Tell your care team right away if you suffer any type of injury, have signs of infection (such as fever, chills, cough) or illness, or signs of shock after a traumatic event (such as cold, sweaty skin, shortness of breath, or a fast heartbeat). 

Nausea and/or Vomiting

Talk to your providers if you have nausea and/or vomiting. They can prescribe medications to help you. Making changes to your diet can also help. Avoid things that make your symptoms worse, like heavy or greasy/fatty foods and spicy or acidic foods, like tomatoes, lemons, and oranges. Try saltines or ginger ale to help your symptoms.  

Call your providers if you cannot keep fluids down for more than 12 hours or if you feel lightheaded or dizzy.

Decrease in Appetite or Taste Changes

Nutrition is an important part of your care. Cancer treatment can affect your appetite and make it hard to eat. Ask your provider about nutrition counseling services. Some tips you can follow are:

  • Try to eat five or six small meals or snacks during the day, instead of 3 larger meals.
  • Nutritional supplements may help if you are not eating enough.
  • You may have a metallic taste or find that food has no taste. You may dislike foods or beverages that you liked before cancer treatment. These symptoms can last for months or longer after treatment ends.
  • Avoid any food that you think smells or tastes bad. If red meat is a problem, eat chicken, turkey, eggs, dairy products, and fish without a strong smell. Sometimes cold food has less of an odor.
  • Add extra flavor to meat or fish by marinating it in sweet juices, sweet and sour sauce, or dressing.
  • Use seasonings like basil, oregano, or rosemary to add flavor.

Diarrhea

Diarrhea is when you pass three or more stools in a day. Your providers can suggest medications to relieve diarrhea. Do not take any medications to manage your diarrhea without talking to your provider first, as your stool may need to be tested. To manage it, try eating foods that are low in fiber and bland, like white rice and boiled or baked chicken. Try not to eat raw fruits, vegetables, whole grain breads, cereals, and seeds. Soluble fiber is a type of fiber found in some foods that helps absorb (soak up) fluid. Foods high in soluble fiber are applesauce, bananas (ripe), canned fruit, oranges, boiled potatoes, white rice, foods made with white flour, oatmeal, cream of rice, cream of wheat, and farina. Stay hydrated by drinking 8 to 10 glasses of non-alcoholic, non-caffeinated fluid each day.

Rash

Some people may get a rash, scaly skin, or red, itchy bumps from this medication. Tell your provider if you notice any of these changes in your skin, since it could be a reaction. Your provider may suggest:

  • Using an alcohol-free moisturizer on your skin and lips, and do not use moisturizers with perfumes or scents. 
  • Keep the area clean to avoid infection, especially if it cracks or bleeds.
  • Using a topical medication (applied to the skin) if the itching bothers you.

Be sure to talk with your provider about how to care for your skin.

Reproductive Concerns

Exposure of an unborn child to this medication could cause birth defects, so you should not become pregnant or father a child while on this medication. Effective birth control is necessary during treatment and until mitotane is not able to be found in your blood. This medication can make hormonal contraceptives not work as well. Even if your menstrual cycle stops or you believe you are not producing sperm, you could still be fertile and conceive. You should not breastfeed while receiving this medication and until mitotane is not detectable in your blood.

Important but Less Common Side Effects

Central Nervous System Toxicity

Prolonged use (greater than 2 years) of mitotane can lead to neurotoxic side effects, including brain damage and functional impairment. The levels of mitotane in your blood will be closely monitored to prevent these problems, and your neurological status will be closely monitored. Do not operate heavy machinery or drive if you have neurologic changes.

Ovarian Macrocysts

These cysts have been reported in premenopausal women taking this medication. Report any gynecologic symptoms, like vaginal bleeding and/or pelvic pain, to your provider.

Liver Toxicity

This medication can cause liver toxicity, or liver problems, which your provider may monitor for with blood tests called liver function tests. Symptoms may be:

  • Yellowing of your skin or eyes.
  • Dark or brown urine.
  • Pain in your abdomen (belly).

Tell your provider if you have any of these symptoms.

Low White Blood Cell Count (Leukopenia or Neutropenia)

White blood cells (WBC) help your body fight infection. While you are having treatment for cancer, your WBC count can drop, putting you at a higher risk of an infection. Tell your provider right away if you have a fever (temperature greater than 100.4°F or 38°C), sore throat or cold, shortness of breath, cough, burning with urination, or a sore that doesn't heal.

Tips for preventing infection:
•    Hand washing: both yours and your visitors is the best way to prevent the spread of infection.a disease
•    Avoid large crowds and people who are sick (those who have a cold, fever, or cough, or live with someone with these symptoms).
•    When working outside, wear clothes that protect you, like long pants and gloves.
•    Do not handle pet waste.
•    Keep all cuts and scratches clean.
•    Shower or bathe daily.
•    Brush your teeth at least twice a day.
•    Do not cut cuticles or ingrown nails. You may wear nail polish, but not fake nails.
•    Ask your providers before scheduling dental appointments or procedures.
•    Ask your providers before you or someone you live with has any vaccines

Low Red Blood Cell Count (Amemia)

Anemia is when your red blood cell count is lower than normal. Red blood cells carry oxygen to the tissues in your body. When your red cell count is low, you may feel tired or weak. Tell your providers if you have shortness of breath, trouble breathing, or pain in your chest. If your count gets too low, you may receive a blood transfusion.

Low Platelet Count (Thrombocytopenia)

Platelets are blood cells that help your blood clot. Thrombocytopenia is when your platelet count is lower than normal, and you are at a higher risk of bleeding. Tell your providers if you have any bruising or bleeding, including nose bleeds, bleeding gums, or blood in your urine or stool. If your count gets too low, you may receive platelets from a donor. 

  • Do not use a razor (an electric razor is fine).
  • Do not do activities that can cause injury or bleeding.
  • Talk to your provider before taking any non-steroidal, anti-inflammatory medications (NSAIDs) like Motrin/Advil (ibuprofen), Aleve (naproxen), Celebrex (celecoxib), and others. These can raise the risk of bleeding. 
  • Use a soft-bristle toothbrush to brush your teeth. Ask your provider about flossing or using toothpicks.