Nereus: FDA Approves New Pill to Help With Motion Sickness
Published: January 2, 2026
Frequent travelers who struggle with motion sickness may soon benefit from a new solution. The U.S. FDA has approved Nereus (tradipitant), a prescription medication designed to prevent nausea and vomiting caused by motion during car journeys, flights, and sea travel.
This is the first new prescription treatment for motion sickness approved in more than 40 years.
Mild motion sickness in adults
Severe recurring symptoms
Reduction in vomiting risk (trials)
Why Motion Sickness Happens
Motion sickness occurs when the brain receives conflicting signals from the eyes, inner ear, and body position sensors. This mismatch triggers the release of substance P, activating NK‑1 receptors and leading to nausea and vomiting.
How Nereus Works
Nereus is an NK‑1 receptor antagonist that blocks the vomiting signal at its source in the brain. Unlike traditional treatments, it targets a specific pathway without broadly affecting other brain receptors.
Clinical Evidence
Three clinical trials, including two phase III studies, were conducted under real-world travel conditions involving participants with a history of motion sickness.
- Boat travel duration: 2–5 hours
- Single pre-travel dose tested
- Compared against placebo
Key Results
- Vomiting reduced to 10–19% vs 37–44% (placebo)
- Strong benefit in sea travel conditions
- Effective when taken before symptoms start
How Travelers Should Use It
- Take one dose orally about 1 hour before travel
- Use on an empty stomach
- Do not exceed one dose in 24 hours
Safety Considerations
- May cause drowsiness—avoid driving until effects are known
- Avoid combining with alcohol or sedative medications
- Not recommended in severe kidney or liver disease
- Consult a doctor if pregnant or breastfeeding
What This Means for Travelers
Nereus offers a promising new option for preventing motion sickness, particularly for frequent travelers, seafarers, and individuals who do not tolerate traditional medications well.
As travel increases globally, better control of motion sickness can significantly improve comfort, safety, and productivity.
