Do not take this medicine with any of these medicines:
-cisapride
-flibanserin
-lomitapide
-pimozide

This medicine may also interact with the following medications:
-diltiazem
-female hormones, like estrogens or progestins and birth control pills
-medicines for fungal infections like ketoconazole and itraconazole
-medicines for HIV
-medicines for seizures or to control epilepsy like carbamazepine or phenytoin
-medicines used for sleep or anxiety disorders like alprazolam, diazepam, or midazolam
-nefazodone
-paroxetine
-ranolazine
-rifampin
-some chemotherapy medications like etoposide, ifosfamide, vinblastine, vincristine
-some antibiotics like clarithromycin, erythromycin, troleandomycin
-steroid medicines like dexamethasone or methylprednisolone
-tolbutamide
-warfarin

They need to know if you have any of these conditions:
-liver disease
-an unusual or allergic reaction to aprepitant, fosaprepitant, other medicines, foods, dyes, or preservatives
-pregnant or trying to get pregnant
-breast-feeding

Do not take this medicine if you already have nausea and vomiting. Ask your health care provider what to do if you already have nausea.

Birth control pills and other methods of hormonal contraception (for example, IUD or patch) may not work properly while you are taking this medicine. Use an extra method of birth control during treatment and for 1 month after your last dose of aprepitant.

This medicine should not be used continuously for a long time.

Visit your doctor or health care professional for regular check-ups. This medicine may change your liver function blood test results.

Keep out of the reach of children.

Store at room temperature between 20 and 25 degrees C (68 and 77 degrees F). Throw away any unused medicine after the expiration date.