Lornoxicam

Lornoxicam
ATC Code M01AC05
Formula C13H10ClN3O4S2
Molar Mass (g·mol−1) 371,82
Physical State solid
Melting Point (°C) 225–230
PKS Value 4,78
CAS Number 70374-39-9
PUB Number 54690031
Drugbank ID DB06725
Solubility sparingly soluble in water

Basics

Lornoxicam is a non-steroidal 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 to treat various types of pain, especially inflammatory conditions of the joints, osteoarthritis, surgery, sciatica, and other inflammatory conditions.

Pharmacology

Pharmacodynamics

Like other NSAIDS, the anti-inflammatory and analgesic effects of lornoxicam are due to its inhibitory action on prostaglandin and thromboxane synthesis by inhibiting both COX-1 and COX-2. This results in the reduction of inflammation, pain, fever and swelling mediated by prostaglandins.

Pharmacokinetics

Lornoxicam is rapidly and almost completely absorbed from the GI tract (90-100%). It is 99% bound to plasma proteins (almost exclusively to serum albumin). Lornoxicam is completely metabolized by CYP2C9, so only negligible amounts of intact lornoxicam are excreted unchanged in the urine. Approximately 2/3 of the drug is excreted by the liver and 1/3 by the kidneys in the active form. The half-life is 3-5 hours.

Drug Interactions

Drug interactions are typical with NSAIDs. Combination with vitamin K antagonists such as warfarin increases the risk of bleeding. Combination with ciclosporin may result in decreased renal function and, in rare cases, acute kidney injury. Lornoxicam may also increase the adverse effects of lithium, methotrexate and digoxin and its derivatives. The effect of diuretics, ACE inhibitors and angiotensin II receptor antagonists may be reduced, but this is only relevant in patients with special risks such as heart failure.

Toxicity

Side effects

Lornoxicam has side effects similar to other NSAIDs, mostly mild such as gastrointestinal discomfort (nausea and diarrhea) and headache.

Severe but rare side effects include bleeding, bronchospasm, and the extremely rare Stevens-Johnson syndrome.

Toxicological Data

LD50 (rat, oral): 3.857 mol-kg-1

Sources

  • PubChem
  • Drugbank
  • Aktories, Förstermann, Hofmann, Starke: Allgemeine und spezielle Pharmakologie und Toxikologie, Elsvier, 2017
Markus Falkenstätter

Markus Falkenstätter
Author

Markus Falkenstätter ist Autor zu pharmazeutischen Themen in der Medizin-Redaktion von Medikamio. Er befindet sich im letzten Semester seines Pharmaziestudiums an der Universität Wien und liebt das wissenschaftliche Arbeiten im Bereich der Naturwissenschaften.

Mag. pharm Stefanie Lehenauer

Mag. pharm Stefanie Lehenauer
Lector

Stefanie Lehenauer ist seit 2020 freie Autorin bei Medikamio und studierte Pharmazie an der Universität Wien. Sie arbeitet als Apothekerin in Wien und ihre Leidenschaft sind pflanzliche Arzneimittel und deren Wirkung.

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