Emend Capsules

DRUG DESCRIPTION

EMEND (aprepitant) is a substance P/neurokinin 1 (NK1) receptor antagonist, chemically described as 5-[[(2R,3S)-2-[(1R)-1-[3,5-bis(trifluoromethyl)phenyl]ethoxy]-3-(4-fluorophenyl)-4-morpholinyl]methyl]-1,2dihydro-3H-1,2,4-triazol-3-one.

Its empirical formula is C23H21F7N4O3, and its structural formula is:

EMEND (aprepitant)  Structural Formula Illustration

Aprepitant is a white to off-white crystalline solid, with a molecular weight of 534.43. It is practically insoluble in water. Aprepitant is sparingly soluble in ethanol and isopropyl acetate and slightly soluble in acetonitrile.

Each capsule of EMEND (aprepitant capsules) for oral administration contains either 40 mg, 80 mg, or 125 mg of aprepitant and the following inactive ingredients: sucrose, microcrystalline cellulose, hydroxypropyl cellulose and sodium lauryl sulfate. The capsule shell excipients are gelatin, titanium dioxide, and may contain sodium lauryl sulfate and silicon dioxide. The 40-mg capsule shell also contains yellow ferric oxide, and the 125-mg capsule also contains red ferric oxide and yellow ferric oxide.

What are the possible side effects of aprepitant (Emend, Emend 3-Day)?

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Call your doctor at once if you have any of these serious side effects:

  • feeling light-headed, fainting;
  • slow heart rate;
  • pale skin, easy bruising or bleeding; or
  • pain or burning when you urinate.

Less serious side effects may include:

  • nausea, vomiting, heartburn, stomach pain;
  • ...

Read All Potential Side Effects and See Pictures of Emend Capsules

What are the precautions when taking aprepitant capsules (Emend Capsules)?

Before using aprepitant, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

Before using this medication, tell your doctor or pharmacist your medical history, especially of: liver problems.

During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor.

It is not known if this drug passes into breast milk. Consult your doctor before...

Read All Potential Precautions of Emend Capsules


Emend Capsules Consumer (continued)

SIDE EFFECTS: Tiredness and hiccups may occur. If either of these effects persist or worsen, tell your doctor or pharmacist promptly.

Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any of the following symptoms of a serious allergic reaction: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

In the US -

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

PRECAUTIONS: Before using aprepitant, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

Before using this medication, tell your doctor or pharmacist your medical history, especially of: liver problems.

During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor.

It is not known if this drug passes into breast milk. Consult your doctor before breast-feeding.


Emend Capsules Patient Information Including Side Effects

Brand Names: Emend, Emend 3-Day

Generic Name: aprepitant (Pronunciation: a PREP i tant)

  • What is aprepitant (Emend Capsules)?
  • What are the possible side effects of aprepitant (Emend Capsules)?
  • What is the most important information I should know about aprepitant (Emend Capsules)?
  • What should I discuss with my health care provider before taking aprepitant (Emend Capsules)?
  • How should I take aprepitant (Emend Capsules)?
  • What happens if I miss a dose (Emend Capsules)?
  • What happens if I overdose (Emend Capsules)?
  • What should I avoid while taking aprepitant (Emend Capsules)?
  • What other drugs will affect aprepitant (Emend Capsules)?
  • Where can I get more information?

What is aprepitant (Emend Capsules)?

Aprepitant blocks the actions of chemicals in the body that trigger nausea and vomiting.

Aprepitant is used together with other medications to prevent nausea and vomiting that may be caused by surgery or cancer chemotherapy.

Aprepitant is given ahead of time and will not treat nausea or vomiting that you already have.

Aprepitant may also be used for other purposes not listed in this medication guide.

What are the possible side effects of aprepitant (Emend Capsules)?

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Call your doctor at once if you have any of these serious side effects:

  • feeling light-headed, fainting;
  • slow heart rate;
  • pale skin, easy bruising or bleeding; or
  • pain or burning when you urinate.

Less serious side effects may include:

  • nausea, vomiting, heartburn, stomach pain;
  • diarrhea or constipation;
  • loss of appetite;
  • hiccups;
  • increased thirst or hot, dry skin;
  • weakness, dizziness, tired feeling;
  • headache;
  • ringing in your ears;
  • fever, chills, body aches, flu symptoms; or
  • sleep problems (insomnia).

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

What is the most important information I should know about aprepitant (Emend Capsules)?

Do not take aprepitant if you are taking any of the following drugs: cisapride (Propulsid) or pimozide (Orap). These drugs may cause life-threatening interactions when taken together with aprepitant.

Before taking aprepitant, tell your doctor if you have liver disease. You may need a dose adjustment or special tests to safely use this medication.

Aprepitant can make birth control pills less effective, resulting in pregnancy. This effect can last for up to 28 days after your last dose of this medication. Talk to your doctor about the use of a non-hormonal back-up form of birth control (such as condoms, a diaphragm, or spermicides) during treatment with aprepitant and for at least 1 month after your treatment ends.

There are many other medicines that can interact with aprepitant. Tell your doctor about all the prescription and over-the-counter medications you use. This includes vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start using a new medication without telling your doctor. Keep a list with you of all the medicines you use and show this list to any doctor or other healthcare provider who treats you.

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