Duloxetine and venlafaxine are 2 selective SNRIs considered appropriate for neuropathic pain patients, although new data suggest duloxetine may be a superior option to venlafaxine. A new study conducted by researchers based out of the VA Tennessee Valley Healthcare System in Murfreesboro, Tennessee, completed a head-to-head analysis between the 2 drugs, examining the percentage of patients able to achieve a therapeutic dose, time taken to reach therapeutic dose, and any adverse effects associated with the treatments. They found significantly more patients were able to achieve a therapeutic dose taking duloxetine. Titrating to a therapeutic dose was also much faster compared to venlafaxine. Duloxetine also appeared to be an effective alternative for patients who had been nonresponders to previous venlafaxine therapy. “When looking at efficacy in neuropathic pain, these medications are thought to be comparable,” because up to this point, there simply has been a lack of research into which medication could be more preferable, lead investigator Kelsie Flynn, Pharm D, told . Given that health care systems base such formulary decisions on cost, generic venlafaxine has been considered the more cost-effective treatment. Review question Does duloxetine work to treat pain generated by nerves when they have been damaged in disease, or the pain caused by fibromyalgia? Background Duloxetine is a drug used to treat depression and urinary urge incontinence (leakage of urine) and it can be also be useful for certain types of pain. Pain can arise spontaneously when there is damage to nerves that carry pain information to the brain (neuropathic pain). When this damage is to nerves outside the spinal cord it is called a of all sorts. Study characteristics We looked at all the published scientific literature and found 18 trials, involving a total of 6407 participants, that were of sufficient quality to include in this . Eight trials tested the effect of duloxetine on painful diabetic neuropathy and six on the pain of fibromyalgia. Three trials treated painful physical symptoms associated with depression and one small investigated duloxetine for the pain from strokes or diseases of the spinal cord (central pain).
When duloxetine is used to treat generalized anxiety disorder, the pain of diabetic neuropathy, fibromyalgia, or ongoing bone or muscle pain, it is usually taken once a day with or without food. Take duloxetine at around the same times every day. Medications, drug efficacy profiles for the specific type of pain, specific. duloxetine plus gabapentin is similar to that of monotherapy e.g.