Aprepitant is a medication primarily used in the healthcare and pharmaceutical industries to prevent chemotherapy-induced nausea and vomiting (CINV) and postoperative nausea and vomiting (PONV). It functions as a substance P/neurokinin 1 (NK1) receptor antagonist, blocking the action of a natural substance in the brain that triggers nausea and vomiting. This medication is particularly important in oncology and surgical care, where it significantly improves patient comfort and recovery outcomes.

Application Areas

  • Oncology: Aprepitant is widely used in cancer treatment centers to prevent CINV, especially with highly emetogenic chemotherapy agents.
  • Surgical Medicine: In postoperative care, it helps manage PONV, a common complication after anesthesia and surgery.
  • Pediatric Care: Its use is also extended to pediatric oncology for managing CINV in children undergoing chemotherapy.
  • Research: Aprepitant is involved in clinical trials to explore its potential in treating other conditions associated with nausea and vomiting.

Well-known Examples

Internationally, aprepitant is known under various brand names:

  • Emend®: This is the most common brand name for aprepitant, marketed by Merck & Co.
  • Aprepit: A generic version available in several countries.
  • Cinvanti®: An intravenous formulation of aprepitant.
  • European and Asian markets have their own branded versions, catering to local healthcare systems.


  • Drug Interactions: Aprepitant can interact with other medications, altering their effects.
  • Side Effects: Common side effects include fatigue, diarrhea, and hiccups. Serious side effects are rare but can occur.
  • Allergic Reactions: As with any medication, there is a risk of allergic reactions.
  • Pregnancy and Breastfeeding: Its safety in pregnancy and breastfeeding is not well-established.

Recommendations and Industry Usage

Aprepitant is recommended as part of a combination therapy for CINV and PONV. In oncology, it is used alongside other antiemetics like 5-HT3 antagonists and dexamethasone. In surgical settings, it's part of the preoperative medication regimen. Its usage is guided by national and international guidelines on nausea and vomiting management.

History and Legal Basics

Aprepitant was approved by the FDA in 2003. Since then, it has undergone various clinical trials, expanding its indications and formulations. The legal framework governing its use involves strict prescription guidelines, ensuring it is used appropriately within the therapeutic context.

Examples of Sentences

  • Aprepitant effectively manages nausea associated with chemotherapy.
  • The patient's CINV symptoms were significantly reduced after starting the aprepitant regimen.
  • Oncologists often prescribe aprepitant alongside other antiemetics.
  • Aprepitant's role in preventing post-surgical nausea cannot be overstated.

Similar Things or Synonyms

  • NK1 Receptor Antagonists
  • Antiemetic Medications
  • Fosaprepitant (a prodrug of aprepitant)
  • Neurokinin-1 Antagonists


Aprepitant plays a crucial role in the management of chemotherapy and postoperative induced nausea and vomiting. Its importance in improving patient quality of life during and after treatment is well-recognized in the medical community. While it is generally safe, awareness of potential side effects and drug interactions is necessary. The evolution of aprepitant, from its introduction to its current status, reflects ongoing efforts in medical science to enhance patient care in oncology and surgery.


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