A side effect which is relevant to your question is:
An increase in formation of adenocarcinomas (is a cancer of epithelia originating in glandular tissue).However was observed in rats during preclinical trials, however the clinical significance of these results remains undetermined.
Another side effect which I aslo find relevant is:metastatic disease (sometimes abbreviated mets), is the spread of a disease from one organ or part to another non-adjacent organ or part. It had been previously thought that only malignant tumor cells and infections have the capacity to metastasize; however, this is being reconsidered due to new research)
Due to the wide variety of conditions for which Gabapentin may be considered as a treatment, and the various claims and counterclaims surrounding it, this presentation of the indicated uses of Gabapentin has attempted to separate the FDA accepted uses, the putative uses, and the disputed uses of the drug.
Gabapentin was originally approved in the U.S. by the Food and Drug Administration (FDA) in 1994 for use as an adjunctive medication to control partial seizures (effective when added to other antiseizure drugs). In 2002, an indication was added for treating postherpetic neuralgia (neuropathic pain following shingles), other painful neuropathies, and nerve related pain.
Gabapentin (administered orally) is one of two medications (the other being flumazenil, which is administered intravenously) used in the expensive Prometa Treatment Protocol for methamphetamine, cocaine and alcohol addiction. Gabapentin is administered at a dosage of 1200 mg taken at bedtime for 40–60 days. Though the combination of flumazenil infusions and gabapentin tablets is a licensed treatment, there is no prohibition against a physician prescribing gabapentin outside the Prometa protocol. There have been reports by methamphetamine addicts that gabapentin alone in doses of 1200 mg at bedtime taken for 40–60 days has been effective in reducing cravings or desire to use methamphetamine.It also attenuates the severity of withdrawal symptoms experienced by those physically dependent on opioid analgesics, such as heroin, morphine, and oxycodone. One study also demonstrates a significant reduction in the severity of benzodiazepine withdrawal syndrome.
Gabapentin is frequently used to treat various types of neuralgia. It has been found to be effective in prevention of frequent migraine headaches, neuropathic pain and nystagmus, and is prescribed off-label (that is, without formal regulatory agreement) for these conditions. Gabapentin is widely believed to help patients with post-operative chronic pain (usually caused by nerves that have been severed accidentally in an operation and when grown back, have reconnected incorrectly) and nerve pain associated with spinal cord injury. It may be effective in reducing pain and spasticity in multiple sclerosis, and has also had success in treating certain instances of Complex Regional Pain Syndrome.Gabapentin is a very promising medication in the treatment of post-herpetic neuralgia and pain. Because dermatological patients suffer pain from painful tumors, after surgery, in conjunction with neuropathic ulcers, during dressing changes involving serious medical conditions, its applications seem manifold.
Gabapentin has been used to treat some symptoms of opiate withdrawal, but tests for smoking cessation treatment have had mixed results.
Additionally, Gabapentin has been prescribed to menopausal patients being treated with anti-androgenic compounds to reduce the incidence and intensity of the accompanying hot flashes. Gabapentin may help deepen sleep, positively affecting deep, slow wave sleep, and reducing arousals during the night. It could potentially be helpful for both sleep onset and sleep maintenance. Gabapentin is sometimes prescribed for RLS (Restless Legs Syndrome). Finally, it may be effective in treating akathisia —a side effect of antipsychotics that causes severe agitation and anxiety.
Gabapentin has been prescribed in the mental health context. Numerous trials have shown that it is not effective as a mood-stabilizing treatment for bipolar disorder and so has no therapeutic advantage in having fewer side-effects over better established bipolar drugs such as lithium and valproic acid. Gabapentin has limited usefulness in the treatment of anxiety disorders such as social anxiety disorder and obsessive-compulsive disorder, in treatment-resistant depression, and for insomnia.
A double blind, randomized controlled trial found gabapentin ineffective for the treatment of idiopathic subjective tinnitus.
Gabapentin's most common side effects in adult patients include dizziness, drowsiness, and peripheral edema (swelling of extremities); these mainly occur at higher doses, in the elderly. Also, children 3–12 years of age were observed to be susceptible to mild-to-moderate mood swings, hostility, concentration problems, and hyperactivity. Although rare, there are several cases of hepatotoxicity reported in the literature. Gabapentin should be used carefully in patients with renal impairment due to possible accumulation and toxicity.
An increase in formation of adenocarcinomas (is a cancer of epithelia originating in glandular tissue) was observed in rats during preclinical trials, however the clinical significance of these results remains undetermined. Gabapentin is also known to induce pancreatic acinar cell carcinomas in rats through an unknown mechanism, perhaps by stimulation of DNA synthesis; these tumors did not affect the lifespan of the rats and did not metastasize.
I hope this information helps you.- Take care.-
- Neurontin Information for Consumers
- Neurontin Information for Healthcare Professionals (includes dosage details)
- Side Effects of Neurontin (detailed)
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