Pregabalin 100 mg capsules (commonly branded as Pregalin, Lyrica) are prescription anticonvulsant and neuropathic pain agents used to treat nerve pain (from diabetes, shingles, injury), fibromyalgia, partial-onset seizures, and sometimes anxiety. Taken 1-3 times daily with or without food, it works by calming damaged or overactive nerves in the central nervous system. 
 
Key Information:
 
Uses: Treatment of neuropathic pain (nerve damage), fibromyalgia, epilepsy (seizures), and anxiety.
Dosage: The 100 mg dose is typically taken twice a day, but this depends on the condition and patient response.
Side Effects: Common side effects include dizziness, drowsiness, dry mouth, constipation, and trouble concentrating.
Precautions: Do not stop taking this medication suddenly, as it may cause withdrawal symptoms. It is generally advised not to consume alcohol while taking this medication due to increased sedative effects.
Warnings: It may cause birth defects if taken during pregnancy.