BACKGROUND The antidepressant amitriptyline is commonly used orally for the treatment of chronic pain, particularly neuropathic pain, which is thought to be caused by high-frequency ectopic discharge. Among its many properties, amitriptyline is a potent Na(+) channel blocker in vitro, has local anesthetic properties in vivo, and confers additional blockade at high stimulus-discharge rates (use-...

BACKGROUND Amitriptyline is a tricyclic antidepressant drug used systemically for the management of neuropathic pain. Antidepressants, as a class of drugs with direct neurologic actions, are becoming widely used for the management of chronic pain, although their mechanisms are not entirely understood. Amitriptyline exerts potent effects on reuptake of norepinephrine and serotonin and blocks alp...

amitriptyline, a tricyclic antidepressant agent is used as one of the analgesic drugs in different kinds of pain. in the present study the effect of local (subcutaneous) injection of amitriptyline (50 and 100 µg) on the acute and chronic pain using formalin test, was investigated. our data show that local injection of amitriptyline to the paw receiving formalin, causes a decrease in pain in bot...

Insecticide resistance amongst disease vectors is a growing problem and novel compounds are needed. Biogenic amines are important for neurotransmission and we have recently shown a potential role for these in mosquito fertility. Here, we dissected the relative contribution of different aminergic signalling pathways to biological processes essential for vectorial capacity such as fertility, loco...

*****Department of Pediatrics, Midnapore Medical College, Midnapore, West Bengal, India Objective: Post herpetic neuralgia is a most common complication of herpes zoster which is difficult to treat. Significant beneficial effects found when treated with antiviral, tricyclic antidepressant, anticonvulsive like gabapentine and pregabalin, opioid and non opioid analgesic etc. Primary prevention ca...

Rodent evidence has confirmed the analgesic effect of tricyclic antidepressants in the treatment of chronic pain, which amitriptyline is rigorously verified. The analgesic effect of amitriptyline, whose mechanisms are complex and unclear, is different from its antidepressant effect. This article reviewed the mechanisms behind amitriptyline’s analgesic properties to further understanding of this...

BACKGROUND AND PURPOSE We performed a double-blind, placebo-controlled study to investigate the effectiveness of amitriptyline for the prophylactic treatment of patients with acute thalamic stroke in preventing central poststroke pain. METHODS Subject received, in a randomized sequence, either amitriptyline titrated from 10 to 75 mg in extended-release form or placebo over a therapy period of...

Depressive disorders are more common among persons with chronic diseases such as inflammatory bowel disease and anti-inflammatory effect of some antidepressants such as amitriptyline has been reported. Acetic acid colitis was induced in both reserpinised (depressed) and non-reserpinised (normal) rats. Reserpinised groups received reserpine (6 mg/kg, i.p.) one hour prior to colitis induction. Th...

UNLABELLED We conducted a randomized, double-blind, placebo-controlled, crossover study at a single center in South Africa, to ascertain whether amitriptyline is an effective analgesic for painful HIV-associated sensory neuropathy of moderate to severe intensity in: i) antiretroviral drug naive individuals, and ii) antiretroviral drug users. 124 HIV-infected participants (antiretroviral drug na...

Ropivacaine, introduced in 1995, is an amide-type local anaesthetic. It consists of pure optical S-(-)-isomers and has a low cardiotoxicity. We report delayed hypersensitivity reactions to ropivacaine. A 74 year old man with postherpetic neuralgia started taking amitriptyline, alprazolam, and loxoprofen and underwent an epidural block with 0.2% ropivacaine hydrochloride without preservatives (4...