Nerandomilast: uses, dosing, side effects & brands
Nerandomilast is a medicine sold in the U.S. under one brand, for idiopathic pulmonary fibrosis. Below: what the FDA label says, every product that contains it, what the pills look like, and its recall record.
Key facts
- Treats
- Idiopathic Pulmonary Fibrosis
- Available as
- Tablet
- Sold as
- Jascayd
- Prescription?
- Prescription only
- Generic available?
- Not in our catalog
How nerandomilast is dosed
From the FDA label for Jascayd (application NDA218764). Other nerandomilast products — different forms, different strengths — are dosed differently. Follow the label for the one you were prescribed.
Recommended Dosage : 18 mg orally twice daily approximately 12 hours apart with or without food. ( 2.1 ) Reduce JASCAYD to 9 mg twice daily for patients who are unable to tolerate 18 mg twice daily, except in patients taking concomitant pirfenidone. ( 2.1 , 7.1 ) Swallow tablets whole or dispersed in water. ( 2.1 ) See full prescribing information for dosage modification for concomitant use with CYP3A inhibitors and administration instructions for patients who have difficulty swallowing tablets. ( 2.2 , 2.3 ) 2.1 Recommended Dosage The recommended dosage of JASCAYD is 18 mg twice daily, administered orally (swallow tablets whole or dispersed in water) approximately 12 hours apart, with or without food. Reduce JASCAYD to 9 mg twice daily for patients who are unable to tolerate 18 mg twice daily, except in patients who concomitantly use JASCAYD with pirfenidone. Recommended Dosage for Concomitant Use with Pirfenidone Recommended dosage of JASCAYD is 18 mg twice daily when used concomitantly with pirfenidone. Do not reduce dosage to 9 mg twice daily [see Drug Interactions (7.1) ]. Administration Instructions Swallow JASCAYD tablets whole or dispersed in water [see Dosage and Administration (2.3) and Clinical Pharmacology (12.3) ]. Missed Dose(s) If a dose of JASCAYD is missed, advise the patient to take the next dose at the next scheduled time. Advise the patient to not make up…
Nerandomilast side effects
Most common adverse reactions (≥5%) are diarrhea, COVID-19, upper respiratory tract infection, depression, weight decreased, decreased appetite, nausea, fatigue, headache, vomiting, back pain, and dizziness. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Boehringer Ingelheim Pharmaceuticals, Inc. at (800) 542-6257 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch . 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in clinical trials of another drug and may not reflect the rates observed in practice. Adverse Reactions for Idiopathic Pulmonary Fibrosis The safety of JASCAYD was based on a randomized, placebo-controlled, double-blind trial (FIBRONEER-IPF), which included 1,177 adult patients with IPF who were randomized in a 1:1:1 ratio to receive JASCAYD 9 mg twice daily, JASCAYD 18 mg twice daily, or matching placebo. Patients received JASCAYD or placebo with or without background antifibrotic treatment (nintedanib or pirfenidone) for at least 52 weeks [see Clinical Studies (14.1) ] . The median duration of exposure was 14 months in each treatment arm. Discontinuation due to adverse reactions occurred more frequently in patients treated with JASCAYD (with or without background antifibrotic treatment) 18 mg (15%) and 9…
Who shouldn’t take nerandomilast
None. None. ( 4 )
Nerandomilast drug interactions
Strong CYP3A Inhibitors : Reduce JASCAYD dosage to 9 mg twice daily. ( 2.2 , 7.1 ) Moderate or Strong CYP3A Inducers : Avoid concomitant use with JASCAYD. ( 7.1 ) 7.1 Effects of Other Drugs on JASCAYD Strong CYP3A Inhibitors Reduce the dosage of JASCAYD to 9 mg twice daily when used concomitantly with strong CYP3A inhibitors [see Dosage and Administration (2.2) ] . Nerandomilast is a CYP3A substrate. Concomitant use of JASCAYD with a strong CYP3A inhibitor increases exposure of nerandomilast, which may increase the risk of JASCAYD adverse reactions [see Clinical Pharmacology (12.3) ]. Moderate or Strong CYP3A Inducers Avoid use of JASCAYD with strong or moderate CYP3A inducers. Nerandomilast is a CYP3A substrate. Concomitant use of JASCAYD with moderate or strong CYP3A inducers is expected to decrease exposure of nerandomilast, which may decrease the efficacy of JASCAYD [see Clinical Pharmacology (12.3) ] . Pirfenidone Recommended dosage of JASCAYD is 18 mg twice daily when used concomitantly with pirfenidone. Do not reduce the dosage to 9 mg twice daily [see Dosage and Administration (2.1) ] . Concomitant use of JASCAYD with pirfenidone decreases exposure of nerandomilast [see Clinical Pharmacology (12.3) ] . When JASCAYD was used concomitantly with pirfenidone in patients with IPF in FIBRONEER-IPF, efficacy was not observed with the JASCAYD 9 mg twice daily dosage [see Clinical Studies (14.1) ] .
Every nerandomilast product we track (1)
Same active ingredient — different manufacturer, form, price and FDA recall record. That last one is what our independent score measures.
Only one: Jascayd.
What nerandomilast pills look like
Imprint codes, colour and shape from the FDA’s labelling data. Match the imprint on your pill — or search any imprint.
| Imprint | Strength | Colour | Shape | Maker |
|---|---|---|---|---|
| F9 | 9 mg | yellow | oval | — |
| F18 | 18 mg | red | oval | — |
What people report to the FDA about nerandomilast
The FDA Adverse Event Reporting System (FAERS) collects reports from patients and clinicians. It holds 74 reports naming nerandomilast, and the FDA flagged 59% of those reports as serious. The effects reported most often — leaving out reports about overdose, misuse or the condition being treated, which dominate the raw list for common medicines:
- diarrhoea17 reports
- cough15 reports
- dyspnoea12 reports
- fatigue11 reports
- nausea11 reports
- headache10 reports
- dizziness7 reports
- throat irritation7 reports
Read these as a signal, not a rate. A report does not mean nerandomilast caused the effect — anyone can file one, and many describe people taking several medicines for several conditions. Crucially there is no denominator: FAERS does not record how many people took the drug, so these counts cannot be turned into “X% of patients” — a bigger number often just means a more widely used or more talked-about drug. Duplicates exist, and publicity drives reporting. For what is actually established, read the FDA label section above.
Source: openFDA drug/event (FAERS), retrieved July 25, 2026.
Related calculators
Frequently asked questions
What is nerandomilast?
JASCAYD (nerandomilast tablets), for oral administration, contain nerandomilast, a phosphodiesterase 4 (PDE4) inhibitor.
Can you take nerandomilast with other medicines?
It depends on the medicine. We check it against the FDA labels rather than guessing: our interaction checker searches each drug's own label for the other and quotes what it says, naming the section it came from. Run nerandomilast against whatever else you take — and remember that a label not naming a drug is not the same as that combination being safe.
What forms does nerandomilast come in?
Across the brands we track, nerandomilast is currently marketed as tablet, per the FDA's National Drug Code Directory. Each form is dosed differently — follow the label for the exact product you were prescribed.
Is there a generic nerandomilast?
We do not currently list a generic-labelled nerandomilast product. That does not always mean none exists — it means none appears under a generic name in the FDA data we track. Ask your pharmacist.
Cite this page
- APA
- pharmaranks. (2026, July 24). Nerandomilast: uses, dosing, side effects & brands. https://pharmaranks.com/drugs/nerandomilast
- MLA
- “Nerandomilast: uses, dosing, side effects & brands.” pharmaranks, 24 July 2026, https://pharmaranks.com/drugs/nerandomilast.
We summarise public FDA and NIH sources — for a clinical claim, cite the primary source we link to as well.
Sources: FDA openFDA drug label, National Drug Code Directory, and Enforcement (recall) database. This page reproduces public FDA data and is not medical advice. Dosing is set by your prescriber.
Read the full FDA label for nerandomilast on DailyMed (NIH) ↗.