Our Science
We are developing ensifentrine, the first inhaled treatment for respiratory diseases in a single molecule that inhibits both phosphodiesterase 3 (PDE3) and phosphodiesterase 4 (PDE4) resulting in bronchodilator and non-steroidal anti-inflammatory effects.
We welcome inquires from healthcare professionals.
Effective October 7th, 2025, Verona Pharma Plc and it subsidiaries1 are subsidiaries of Merck & Co., Inc. (Rahway, New Jersey USA)
1 Subsidiaries include Verona Pharma, Inc. (US) and Verona Pharma Ireland Limited (Ireland).
For product-related questions, please contact us at
1-888-672-0371
Monday – Friday 8:30 AM – 5:00 PM ET
To report suspected adverse reactions, contact Verona Pharma, Inc, at
1-888-672-0371
Monday – Friday 8:30 AM – 5:00 PM ET