Apremilast
Brand names: Otezla
Apremilast is an oral phosphodiesterase-4 inhibitor used for psoriatic arthritis, plaque psoriasis, and Behcet's disease oral ulcers.
Adult dose
Dose adjustments
No dose adjustment is needed in adult patients with mild or moderate renal impairment. In adults with severe renal impairment (creatinine clearance less than 30 mL per minute estimated by the Cockcroft-Gault equation) the dose should be reduced to 30 mg once daily; for initial dose titration in this group, titrate using only the AM schedule in SPC Table 1 and skip the PM doses.
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
- Pregnancy
Side effects
- Diarrhoea (15.7% in psoriatic arthritis and psoriasis; 41.3% in Behcet's disease) and nausea (13.9%; 19.2% in Behcet's disease) - very common; generally occur within the first 2 weeks of treatment and usually resolve within 4 weeks. Post-marketing reports of severe diarrhoea, nausea and vomiting, sometimes requiring hospitalisation
- Upper respiratory tract infection (8.4%; 11.5% in Behcet's disease) - very common; bronchitis and nasopharyngitis common
- Headache (7.9%) and tension headache (7.2%) - very common; migraine common
- Vomiting, dyspepsia, frequent bowel movements, upper abdominal pain and gastro-oesophageal reflux disease (common); gastrointestinal haemorrhage (uncommon)
- Psychiatric reactions - insomnia and depression (common); suicidal ideation and behaviour, anxiety and mood altered (uncommon)
- Decreased appetite, back pain, fatigue and cough (common); weight decrease (uncommon)
Interactions
- Strong CYP3A4 enzyme inducers (e.g. rifampicin, phenobarbital, carbamazepine, phenytoin and St John's Wort) - reduce systemic exposure of apremilast, which may result in loss of efficacy; concomitant use is not recommended (UK SPC §4.5; US label §7.1 gives the same warning for strong CYP450 inducers such as rifampin)
- The UK SPC §4.5 text was truncated at the source-fetch limit immediately after the CYP3A4 inducer paragraph ('Co-administration of ...') - further interactions were not retrieved; verify against the full §4.5
Clinical monograph
How it works
It inhibits phosphodiesterase-4, increasing intracellular cyclic AMP and thereby modulating the production of pro-inflammatory and anti-inflammatory mediators.
Prescribing in practice
- Depression and suicidal ideation have been reported, so assess mental health and counsel patients and carers to report mood changes.
- Diarrhoea, nausea, and weight loss are common, particularly early in treatment, and the dose is up-titrated to improve tolerability.
- Dose reduction is needed in severe renal impairment.
Monitoring
Monitor body weight, gastrointestinal tolerability, and mental health (including mood and suicidal ideation).
Counselling the patient
- Report any new or worsening low mood, anxiety, or thoughts of self-harm.
- Nausea and diarrhoea are common at first and usually improve; report troublesome or persistent weight loss.
- Take as directed; the dose is increased gradually when starting.
Evidence & guidelines
Use in psoriatic arthritis and psoriasis is supported by the PALACE and ESTEEM trial programmes and relevant NICE guidance; consult the SPC.
Reference: NICE TA433; PALACE 1–4 Trials; MHRA Drug Safety Update (depression/suicidality 2019); 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
- Cutaneous Lupus Erythematosus · BAD; EULAR
- Osteoporosis / Fragility Fracture · NOGG 2021; NICE NG147; NG224
- Arteritic AION (Giant Cell Arteritis) · RCOphth; BSR
- Osteoarthritis Hip / Knee Management · NICE NG226 (2022)
- Lupus Nephritis · EULAR/ERA-EDTA 2019; KDIGO 2024
- Rheumatoid Arthritis Management · NICE CG79 2018 / EULAR 2022