Clinical data
AHFS/Drugs.com International Drug Names
Routes of
Oral, parenteral
ATC code
Legal status
Legal status
  • In general: ℞ (Prescription only)
Pharmacokinetic data
Bioavailability 90–100%
Protein binding 99%
Metabolism CYP2C9
Elimination half-life 3–4 hours
Excretion 2/3 hepatic, 1/3 renal
PubChem CID
ECHA InfoCard 100.158.646
Chemical and physical data
Formula C13H10ClN3O4S2
Molar mass 371.8192 g/mol
3D model (JSmol)
 NY (what is this?)  (verify)

Lornoxicam (INN, or chlortenoxicam; trade name Xefo, among others) is a nonsteroidal anti-inflammatory drug (NSAID) of the oxicam class with analgesic (pain relieving), anti-inflammatory and antipyretic (fever reducing) properties. It is available in oral and parenteral formulations.


Lornoxicam is used for the treatment of various types of pain, especially resulting from inflammatory diseases of the joints, osteoarthritis, surgery, sciatica, and other inflammations.[1]


The drug is contraindicated in patients who must not take other NSAIDs, possible reasons including salicylate sensitivity, gastrointestinal bleeding and bleeding disorders, and severe impairment of heart, liver or kidney function. Lornoxicam is not recommended during pregnancy and breastfeeding and is contraindicated during the last third of pregnancy.[1]

Adverse effects

Lornoxicam has side effects similar to other NSAIDs, most commonly mild ones like gastrointestinal disorders (nausea and diarrhea) and headache. Severe but seldom side effects include bleeding, bronchospasms and the extremely rare Stevens–Johnson syndrome.[1]


Interactions with other drugs are typical of NSAIDs. Combination with vitamin K antagonists like warfarin increases the risk of bleeding. Combination with ciclosporin can lead to reduced kidney function, and to acute renal failure in rare cases. Lornoxicam can also increase the adverse effects of lithium, methotrexate and digoxin and its derivatives. The effect of diuretics, ACE inhibitors and angiotensin II receptor antagonists can be reduced, but this is only relevant in patients with special risks like heart failure. As with piroxicam, cimetidine can increase plasma levels but is unlikely to cause relevant interactions.[2]


  1. 1 2 3 Haberfeld, H, ed. (2009). Austria-Codex (in German) (2009/2010 ed.). Vienna: Österreichischer Apothekerverlag. Xefo Filmtabletten. ISBN 3-85200-196-X.
  2. Klopp, T, ed. (2010). Arzneimittel-Interaktionen (in German) (2010/2011 ed.). Arbeitsgemeinschaft für Pharmazeutische Information. ISBN 978-3-85200-207-1.

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