This section contains information intended for healthcare professionals in the United States only and is not intended for the general public.
OHTUVAYRE® (ensifentrine) is a prescription medicine used to treat chronic obstructive pulmonary disease (COPD) in adults. COPD is a chronic (long-term) lung disease that includes chronic bronchitis, emphysema, or both.
OHTUVAYRE® (ensifentrine) is a prescription medicine used to treat chronic obstructive pulmonary disease (COPD) in adults. COPD is a chronic (long-term) lung disease that includes chronic bronchitis, emphysema, or both.
OHTUVAYRE® (ensifentrine) is a prescription medicine used to treat chronic obstructive pulmonary disease (COPD) in adults. COPD is a chronic (long-term) lung disease that includes chronic bronchitis, emphysema, or both.
What is the most important information I should know about OHTUVAYRE?
OHTUVAYRE can cause serious side effects, including:
Do not use OHTUVAYRE to treat sudden breathing problems. Always have a rescue inhaler with you.
Who should not use OHTUVAYRE?
Do not use OHTUVAYRE if you have had an allergic reaction to ensifentrine or any of the ingredients in OHTUVAYRE.
What should I tell my healthcare provider before using OHTUVAYRE?
Before you use OHTUVAYRE, tell your healthcare provider if you have or have had a history of mental health problems including depression and suicidal behavior; have liver problems; are pregnant or plan to become pregnant; or are breastfeeding. It is not known if OHTUVAYRE may harm your unborn baby. It is not known if the medicine in OHTUVAYRE passes into your breast milk and if it can harm your baby.
Tell your healthcare provider about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements.
What are the most common side effects of OHTUVAYRE?
The most common side effects of OHTUVAYRE include back pain, high blood pressure, bladder infection, and diarrhea.
These are not all the possible side effects of OHTUVAYRE. Call your doctor for medical advice about side effects.
How should I use OHTUVAYRE?
This summary does not include all the information about OHTUVAYRE and is not meant to take the place of a discussion with your healthcare provider about your treatment. You are encouraged to report negative side effects of prescription drugs to the FDA. Visit www.fda.gov/medwatch or call 1-800-FDA-1088.
Please read the accompanying Patient Information and Instructions for Use for OHTUVAYRE, and discuss them with your doctor. The physician Prescribing Information also is available.
What is the most important information I should know about OHTUVAYRE?
OHTUVAYRE can cause serious side effects, including:
What is the most important information I should know about OHTUVAYRE?
OHTUVAYRE can cause serious side effects, including:
This section contains information intended for healthcare professionals in the United States only and is not intended for the general public.
No, I am not. Please take me back.
This site is intended only for residents of the United States and its territories, including Puerto Rico.
Copyright © 2026 Merck & Co., Inc., Rahway, NJ, USA and its affiliates.
All rights reserved. US-OHT-01595 07/26