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Concept
Pregabalin
Summary
Pregabalin, sold under the brand name Lyrica among others, is an anticonvulsant, analgesic and anxiolytic medication used to treat epilepsy, neuropathic pain, fibromyalgia, restless leg syndrome, opioid withdrawal and generalized anxiety disorder (GAD). Pregabalin also has antiallodynic properties. Its use in epilepsy is as an add-on therapy for partial seizures. It is a gabapentinoid medication and acts by inhibiting certain calcium channels. When used before surgery, it reduces pain but results in greater sedation and visual disturbances. It is taken by mouth.
Common side effects include headache, dizziness, sleepiness, confusion, trouble with memory, poor coordination, dry mouth, problems with vision, and weight gain. Serious side effects may include angioedema, drug misuse, and an increased suicide risk. When pregabalin is taken at high doses over a long period of time, addiction may occur, but if taken at usual doses the risk is low. Use during pregnancy or breastfeeding is of unclear safety.
Pregabalin was approved for medical use in the United States in 2004. It was developed as a successor to the related gabapentin. It is available as a generic medication. In 2020, it was the 78th most commonly prescribed medication in the United States, with more than 9 million prescriptions. In the US, pregabalin is a Schedule V controlled substance under the Controlled Substances Act of 1970. It is a Class C controlled substance in the UK.
For drug-resistant focal epilepsy, pregabalin is useful as an add-on therapy to other treatments. Its use alone is less effective than some other seizure medications. It is unclear how it compares to gabapentin for this use.
The European Federation of Neurological Societies recommends pregabalin as a first line agent for the treatment of pain associated with diabetic neuropathy, post-herpetic neuralgia, and central neuropathic pain. A minority obtain substantial benefit, and a larger number obtain moderate benefit.
Official source
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