Jascayd (nerandomilast) is a prescription medication used to treat a lung condition called idiopathic pulmonary fibrosis (IPF) in adults. It's a PDE4 inhibitor that might help slow the worsening of lung function over time. You take a tablet by mouth twice a day, about 12 hours apart. Common side effects include diarrhea and infections such as COVID-19 and upper respiratory tract infections.
Jascayd (nerandomilast) is a phosphodiesterase 4 (PDE4) inhibitor. It works by blocking a protein called PDE4, which raises the amount of a chemical in your body called cAMP. Higher levels of cAMP can help reduce inflammation and slow the buildup of scar tissue in your lungs.
The following side effects may get better over time as your body gets used to the medication. Let your healthcare provider know immediately if you continue to experience these symptoms or if they worsen over time.
Side effects that you should report to your care team as soon as possible:
Side effects that usually do not require medical attention (report these to your care team if they continue or are bothersome):
Yes. Jascayd (nerandomilast) was FDA approved in October 2025.
No, Jascayd (nerandomilast) should be swallowed whole, or you can soak the tablet in water for 15 to 20 minutes if you have trouble swallowing it. Don’t break or crush the tablet since this can change how the medication works.
Weight loss has been reported as a side effect in clinical studies, but it happened most often in people who were also taking Ofev (nintedanib). If you notice weight changes or have concerns about your weight while taking this medication, talk with your prescriber.
In studies, researchers looked at how much air people with IPF could breathe out over time. They found that people taking Jascayd (nerandomilast) were able to breathe out more air after taking a deep breath compared to people taking a placebo. This suggests that Jascayd (nerandomilast) might help slow down the worsening of lung function.
A dose of Jascayd (nerandomilast) can stay in your system for about 3 to 4 days. This is based on the medication's half-life, which is how long it takes for half of the medication to leave your body. Keep in mind, this can vary from person to person.
The typical dose is to take 18 mg by mouth twice a day, about 12 hours apart.
Your dose might differ if you're taking certain medications or if you're having side effects.