Roflumilast
Brand names: Daxas
Roflumilast is an oral selective phosphodiesterase-4 inhibitor used as add-on maintenance therapy in severe chronic obstructive pulmonary disease associated with chronic bronchitis and frequent exacerbations.
Adult dose
Dose adjustments
No dose adjustment is necessary in renal impairment (section 4.2).
Dose auto-extracted from UK Summary of Product Characteristics (SPC) via the eMC; US FDA prescribing information (openFDA / DailyMed) — cross-check; US labelling may differ from UK — not yet clinician-verified. Always confirm against the product SmPC and your local formulary before prescribing.
Contraindications
- Hypersensitivity to the active substance or to any of the excipients listed in section 6.1
- Moderate or severe hepatic impairment (Child-Pugh B or C)
Side effects
- Common: diarrhoea (5.9%)
- Common: weight decreased (3.4%), decreased appetite
- Common: nausea (2.9%), abdominal pain (1.9%)
- Common: headache (1.7%), insomnia
- Uncommon: anxiety, depression, nervousness, tremor, dizziness, palpitations, vomiting, gastritis, dyspepsia, rash, muscle spasms and weakness, malaise, asthenia, fatigue. Rare: suicidal ideation and behaviour (including suicide), gynaecomastia, angioedema, panic attack
Interactions
- eMC section 4.5 was not retrieved in this bundle; the following are from the US label (cross-check only - verify against the UK SPC)
- US label: strong cytochrome P450 enzyme inducers (e.g. rifampicin, phenobarbital, carbamazepine, phenytoin) decrease systemic exposure to roflumilast and may reduce therapeutic effectiveness - concomitant use is not recommended
- US label: CYP3A4 inhibitors, or dual inhibitors of CYP3A4 and CYP1A2 (e.g. erythromycin, ketoconazole, fluvoxamine, enoxacin, cimetidine), may increase roflumilast systemic exposure and result in increased adverse reactions - weigh the risk of concurrent use carefully against benefit
- Section 4.4 (eMC): treatment should not be initiated, or should be stopped, in patients being treated with immunosuppressive medicinal products (methotrexate, azathioprine, infliximab, etanercept, or long-term oral corticosteroids; short-term systemic corticosteroids excepted)
Clinical monograph
How it works
It inhibits phosphodiesterase-4, raising intracellular cyclic AMP in inflammatory cells and thereby reducing the airway inflammation characteristic of COPD.
Prescribing in practice
- Psychiatric effects including mood changes, anxiety, depression and suicidal ideation have been reported and warrant careful assessment of mental health before and during treatment.
- Weight loss, diarrhoea and nausea are common, particularly early in treatment, and weight should be monitored.
- It is not a bronchodilator and is contraindicated in moderate to severe hepatic impairment.
Monitoring
Monitor body weight, mental health and gastrointestinal tolerability during treatment.
Counselling the patient
- Report any low mood, anxiety or thoughts of self-harm to your healthcare team without delay.
- Some weight loss, nausea and diarrhoea are common at first and often settle.
- This tablet adds to your inhalers and is not a reliever for breathlessness.
Evidence & guidelines
The MHRA has highlighted the risk of psychiatric reactions with roflumilast, and NICE guidance positions it as add-on therapy in selected severe COPD.
Reference: NICE TA244; GOLD COPD Guidelines 2024; Drug verified in RxNorm (NLM); confirm dosing against the manufacturer SPC (eMC). Verify against your local formulary and current prescribing references before prescribing. The structured dose values shown have been reviewed by a clinician. Monograph status: clinician-reviewed (2026-07-04).
Related
Curated clinical cross-links plus same-class fallbacks.
- SMART Risk Score for Recurrent CVD · Cardiovascular Risk
- PCSK9 Inhibitor Eligibility Assessment · Lipid Management
- Immune-Related Adverse Events (irAE) -- GI Toxicity Colitis Grading · Oncology-Related GI
- irAE Hepatitis Grading (CTCAE) · Immunotherapy
- DIPSS — Dynamic International Prognostic Scoring System for Myelofibrosis · Cancer Prognosis
- BALL Score for Relapsed/Refractory CLL · Leukaemia
- Acute Asthma in Adults · BTS/SIGN British Guideline on Asthma 2019; NICE NG80
- Pulmonary Embolism Assessment · NICE NG158; ESC 2019 PE Guidelines
- Acute Exacerbation of COPD (AECOPD) · NICE NG115; GOLD 2024
- Spontaneous Pneumothorax (Adult) · BTS Pleural Disease 2023
- Atypical Pneumonia (Legionella / Mycoplasma / Chlamydophila) · BTS 2023; IDSA
- COPD Exacerbation Management · NICE NG115 / GOLD 2024