aprepitant

Aprepitant is used with other medications to help prevent nausea and vomiting caused by cancer drug treatment (chemotherapy). This medication is also used to prevent nausea and vomiting after surgery. Aprepitant works by blocking one of the body's natural substances (substance P/neurokinin 1) that causes vomiting. This medication will not treat nausea or vomiting if you already have it. Contact your doctor for further instructions if you are experiencing nausea or vomiting.

It is important that you take each dose according to the prescribed schedule. If you miss a dose, contact your doctor or pharmacist immediately to establish a new dosing schedule.

Read the Patient Information Leaflet available from your pharmacist before you start taking this medication and each time you get a refill. If you have any questions, consult your doctor or pharmacist. Take this medication by mouth, with or without food. To prevent nausea and vomiting caused by cancer chemotherapy, you will usually take the first dose 1 hour before treatment. On the following 2 days, you will usually take the dose once daily in the morning or as directed by your doctor. If you are taking this medication to prevent nausea and vomiting after surgery, you will usually take one dose of 40 milligrams before surgery. Dosage is based on your medical condition (depending on whether you are taking this medication before cancer chemotherapy or surgery) and response to treatment. It is important to follow your doctor's instructions for when to take each dose, how long to keep taking it, and the strength (number of milligrams) of each dose. If you have any questions, consult your doctor or pharmacist. Tell your doctor if you develop nausea or vomiting.

Your doctor or pharmacist may already be aware of any possible drug interactions and may be monitoring you for them. Do not start, stop, or change the dosage of any medicine before checking with your doctor or pharmacist first. This drug should not be used with the following medications because very serious (possibly fatal) interactions may occur: cisapride, pimozide. If you are currently using either of these medications listed above, tell your doctor or pharmacist before starting aprepitant. Before using this medication, tell your doctor or pharmacist of all prescription and nonprescription/herbal products you may use, especially of: drugs affecting liver enzymes that remove aprepitant from your body (such as azole antifungals including itraconazole, macrolide antibiotics including erythromycin, cimetidine, rifamycins including rifabutin, St. John's wort, certain anti-seizure medicines including carbamazepine/phenytoin, certain cancer chemotherapy drugs including ifosfamide/vinblastine/vincristine). Aprepitant can both speed up and slow down the removal of other drugs from your body, thereby affecting how they work. These affected drugs include (not a complete list): benzodiazepines (e.g., alprazolam, midazolam, triazolam), simvastatin, drugs to treat male sexual function problems (e.g., sildenafil). If you take warfarin, this drug may affect how well warfarin works in your body. Therefore, your doctor should test your blood during the 2 weeks after your aprepitant treatment to measure how well warfarin is working. This medication may decrease the effectiveness of hormonal birth control (e.g., pill, patch, ring). This effect can result in pregnancy. Ask your doctor or pharmacist for details. Discuss whether you should use additional reliable birth control methods during treatment with aprepitant and for 1 month after the last dose of aprepitant. This document does not contain all possible interactions. Therefore, before using this product, tell your doctor or pharmacist of all the products you use. Keep a list of all your medications with you, and share the list with your doctor and pharmacist.

Do not share this medication with others.

If overdose is suspected, contact your local poison control center or emergency room immediately. US residents can call the US National Poison Hotline at 1-800-222-1222. Canada residents can call a provincial poison control center.

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.

Store at room temperature between 68-77 degrees F (20-25 degrees C) away from light and moisture. Do not store in the bathroom. Keep all medicines away from children and pets. Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company for more details about how to safely discard your product.

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.