Objective. To evaluate the synergistic analgesic effect of essential oil of Zanthoxylum schinifolium Sieb. et Zucc. (EOZ) and verapamil (Ver). Method. The qualitative and quantitative composition of EOZ were determined with gas chromatography/Mass spectrometer. The interaction between EOZ and Ver in antinociceptive activity was evaluated by using acetic acid-induced writhing, hot plate, and tai...

Nimodipine, an L-type calcium channel blocker, can induce analgesia. However, it is not clear that this analgesic effect is at the level of spinal or supraspinal pain pathway. In addition, it has been reported that the analgesic effect of nifedipine, another L-type calcium channel blocker is related to the HPA axis, but there is no report indicating the role of this axis in the analgesic eff...

Background: Apelin has recently been identified as an analgesic agent and a novel neuropeptide. On the other hand, it has been shown that exercise can lead to reduced pain in morphine-dependent patients. Objectives: Therefore, the aim of this study was to evaluate apelin and pain threshold changes in healthy and morphine-dependent rats in response to two exercise paradigms. Materials and Method...

The present study evaluated the anti-inflammatory and analgesic properties of Agave sisalana Perrine in classic models of inflammation and pain. The hexanic fraction of A. sisalana (HFAS) was obtained by acid hydrolysis followed by hexanic reflux. Anti-inflammatory properties were examined in three acute mouse models (xylene ear oedema, hind paw oedema and pleurisy) and a chronic mouse model (g...

background & aim: eugenia caryophyllata well known as clove is a tree from myrtaceae family that several parts of this plant traditionally used in dental care as an analgesic. this study aimed to assess the chemical composition, anti-inflammatory and anti-nociceptive activities of the essential oil extracted from clove buds. experimental: the essential oil of clove buds (eoc) was extracted ...

OBJECTIVES Aristotelia chilensis leaves (Elaeocarpaceae) are used in Chilean folk medicine to treat pain and inflammation. A bioguided study was carried out on serial extracts (hexane, dichloromethane, methanol, aqueous extract (INFU) and a crude mixture of alkaloids (ALK-MIX). All extracts were evaluated for (1) topical administration against both arachidonic acid and 12-deoxyphorbol-13-decano...

The clinical usefulness of morphine for treatment of chronic pain is limited by development of tolerance. So many authors have proposed the co-administration of other drugs. This study was performed to evaluate the role of gabapentin on analgesic effect of morphine. Four groups of male rats (220-250 g) were examined for time latency using tail flick test: control, morphine (M), gabapentin (GB),...

There are some reports in ancient medicinal literature that aqueous extracts of the leaves of Teucrium polium show analgesic effects. This prompted us to investigate the analgesic effect of the leaves of the plant using Tail-Flick and Fomalin tests. For this purpose, male NMRI rats weighing 220-260 g were used in all experiments. The aqueous extract of the plant was injected intraperitoneally a...

Gabapentin and carbamazepine like anti epileptics are being used now a days to treat a number of diseases associated with neuropathic pain. The aim of this study is to observe whether novel anticonvulsants are able to produce analgesic response in pain conditions of acute and chronic type. This study observed the analgesic effect of lamotrigine in rats by biphasic nociceptive pain model of form...

Introduction: Methadone has been used as a drug to detoxify opioid tolerance. Naloxane precipitated morphine withdrawal behaviours were attenuated by venlafaxine as an antidepressant. On the contrary, after detoxifying the opioids, spontaneous withdrawal syndrome may occur with pain sensitivity. Therefore the present study aimed to examine the effects of chronic methadone (70 mg/kg, in dr...