Gabapentin (Generic Neurontin, Gralise, Horizant) is an anticonvulsant drug prescribed with other medications to prevent and control seizures. It is also prescribed to relieve nerve pain after recovering from shingles (a herpes virus) or to treat restless leg syndrome.
What is gabapentin used for?
Gabapentin is FDA-approved as a generic for Neurontin, Gralise, or Horizant. It has the same ingredients, dosing, and efficacy as its brand-name counterparts.
Gabapentin (Generic Neurontin) is used with other medications to treat seizures in adults and children age three and older and may be prescribed for shingles-related neuropathic pain.
Gabapentin (Generic Gralise) treats nerve pain that can last for months or years in adults following a shingles infection.
Gabapentin (Generic Horizant) treats nerve pain associated with restless leg syndrome (RLS) in adults.
Check to make sure you are taking the correct form prescribed by your doctor.
How gabapentin works
Gabapentin is an anticonvulsant drug that controls electrical activity in the brain’s neurotransmitters, which send signals between nerve cells. Calming nerve activity may reduce the occurrence and intensity of seizures and reduce nerve pain related to other conditions.
Common side effects of gabapentin
Feeling drowsy, tired, or weak
Dizziness/unsteadiness
Headaches
Uncontrollable shaking
Double vision
Anxiety
Memory problems
Unwanted eye movements
Nausea/vomiting
Heartburn
Diarrhea or constipation
Dry mouth
Increased appetite
Weight gain
Swelling in hands, feet, ankles, or legs
Back pain
Flu-like symptoms (sneezing, runny nose, coughing, sore throat, fever)
Earache
Red, itchy eyes
If you experience symptoms of an allergic reaction, including severe itching; swelling in the face, tongue, throat, lips, or eyes; rash; hoarseness; difficulty swallowing or breathing; seizures; or blue-tinged skin, lips, or fingernails, contact your doctor immediately.
Gabapentin dosage information
Capsule (100 mg, 300 mg, 400 mg)
Tablet (600 mg, 800 mg)
Solution (250 mg/5 mL)
Always check to make sure you’re taking the correct form of gabapentin in the accurate dosage. Ask your pharmacist or doctor if you have questions.
Additional information
Adults and children may experience sudden mood or behavioral changes when taking gabapentin. Contact your doctor immediately if you or your child experience panic attacks, agitation, new or worsening irritability, aggressive or violent behavior, suicidal thoughts, or other unusual behavior or mood changes.
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