Horizant is used to treat moderate to severe restless legs syndrome. It is also used to relieve nerve pain following shingles (a painful rash due to herpes zoster infection). This condition is called postherpetic neuralgia. Gabapentin enacarbil is changed by your body to gabapentin. Gabapentin belongs to a class of drugs known as anti-seizure or anticonvulsant drugs.
How to use Horizant
Read the Medication Guide provided by your pharmacist before you start taking gabapentin enacarbil and each time you get a refill. If you have any questions, ask your doctor or pharmacist.
The dosage is based on your medical condition and response to treatment.
For Restless Legs Syndrome: Take this medication by mouth as directed by your doctor, usually once daily with food at about 5 PM. This dosing schedule is for people who are awake during the day and asleep during the night. If you need to sleep during the daytime and stay awake at night, talk with your doctor about your schedule before using this medication.
For Postherpetic Nerve Pain: Take this medication by mouth as directed by your doctor, usually once daily with food for several days, then increase to twice a day with food thereafter.
Swallow this medication whole. Do not crush or chew sustained-release tablets. Doing so can release all of the drug at once, increasing the risk of side effects. Also, do not split sustained-release tablets unless they have a score line and your doctor or pharmacist tells you to do so. Swallow the whole or split tablet without crushing or chewing.
Take this medication regularly to get the most benefit from it. To help you remember, take it at the same time(s) each day.
Do not increase your dose or use this drug more often or for longer than prescribed. Your condition will not improve any faster, and your risk of side effects will increase.