Lyrica 300mg tablet is a prescription medication used to treat nerve pain caused by conditions such as diabetic neuropathy, postherpetic neuralgia, and fibromyalgia. It contains the active ingredient pregabalin, which works by reducing the release of certain neurotransmitters in the brain that are involved in pain signaling. The tablet is oblong-shaped, white in color, and imprinted with "PGN 300" on one side and "Pfizer" on the other. It should be taken orally with or without food, as directed by a healthcare provider. Common side effects may include dizziness, drowsiness, dry mouth, and weight gain.