Usual Adult Dose of Horizant for Postherpetic Neuralgia:
The recommended dosage is 600 mg orally 2 times a day. Therapy should be initiated at a dose of 600 mg orally in the morning for 3 days of therapy, then increased to 600 mg 2 times a day (1200 mg/day) on day four.
Gabapentin enacarbil extended release tablets available under the trade name Horizant and gabapentin are not interchangeable.
Use: Postherpetic neuralgia
Usual Adult Dose of Horizant for Restless Legs Syndrome:
600 mg orally once daily with food at about 5 PM. A dose of 1,200 mg once daily provided no additional benefit compared with the 600-mg dose, but caused an increase in adverse reactions.
Use: For the treatment of moderate-to-severe primary Restless Legs Syndrome (RLS) in adults
 Detailed Horizant dosage information
What happens if I miss a dose?
Take the missed dose as soon as you remember. Be sure to take the medicine with food. Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up the missed dose.
What happens if I overdose?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.
