Interactions of prazosin with non-steroidal anti-inflammatory drugs

H. F. Miranda, G. Pinardi

Resultado de la investigación: Article

1 Cita (Scopus)

Resumen

The non-steroidal anti-inflammatory drugs (NSAIDs) are used in the treatment of a variety of pain and inflammatory conditions, mainly because its molecular target is the inhibition of the enzyme cyclooxygenase (COX). Experimental studies suggest that inhibition of COX does not fully explain the antinociceptive effect of these drugs. The aim of the present study was to determine, using as a noxious chemical stimulus the acetic acid algesiometric test, the modulatory interactions between the antinociceptive effect of some NSAIDs and the selective α1-adrenergic receptor antagonist prazosin (PRA), at spinal and supraspinal levels. The simultaneous intraperitoneal administration of NSAIDs with PRA, analyzed by isobolograms, produced supra-additive interactions; however, when the drugs were administered intrathecally, the interactions were only additive, with the exception of thode of naproxen and paracetamol, which were supra-additive. The coadministration of PRA and NSAIDs, either systemically or intrathecally, never resulted in sub-additive or antagonistic effects upon the antinociceptive activity elicited by NSAIDs. The results of the present work suggest that the antinociception induced by NSAIDs involves some form of interaction with spinal and supraspinal α1-adrenergic receptors, which appears to be dearly additive or supra-additive.

Idioma originalEnglish
Páginas (desde-hasta)253-262
Número de páginas10
PublicaciónPharmacology Reviews and Communications
Volumen11
N.º3
EstadoPublished - 2001

Huella dactilar

Prazosin
Anti-Inflammatory Agents
Pharmaceutical Preparations
Prostaglandin-Endoperoxide Synthases
Naproxen
Adrenergic Antagonists
Acetaminophen
Acetic Acid
Adrenergic Receptors
Pain
Enzymes

ASJC Scopus subject areas

  • Pharmacology

Citar esto

Miranda, H. F. ; Pinardi, G. / Interactions of prazosin with non-steroidal anti-inflammatory drugs. En: Pharmacology Reviews and Communications. 2001 ; Vol. 11, N.º 3. pp. 253-262.
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Interactions of prazosin with non-steroidal anti-inflammatory drugs. / Miranda, H. F.; Pinardi, G.

En: Pharmacology Reviews and Communications, Vol. 11, N.º 3, 2001, p. 253-262.

Resultado de la investigación: Article

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AU - Pinardi, G.

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