Gabapentin

Gabapentin is a prescription medication that treats nerve pain and prevents seizures. It belongs to a class of drugs called anticonvulsants, which calm overactive nerves in your body. Doctors originally developed it for epilepsy, but it also helps many other conditions.

This medication comes in capsules, tablets, and liquid forms. You need a prescription from your doctor to get gabapentin. The brand name version is called Neurontin, but generic gabapentin works the same way and costs less.

Gabapentin does not create the same risks as opioid pain medications. It works differently in your body and has a lower potential for serious dependency. Many doctors prescribe it as a safer option for long-term nerve pain management.

• Nerve pain from shingles, also called postherpetic neuralgia
• Partial seizures in adults and children over 3 years old
• Diabetic nerve pain in the feet and legs
• Fibromyalgia pain and discomfort
• Restless leg syndrome that disrupts sleep
• Hot flashes during menopause
• Certain types of chronic pain conditions

Gabapentin calms nerve cells that send too many pain signals to your brain. It looks similar to a natural chemical in your body called GABA, which helps control nerve activity. The medication attaches to specific spots on your nerve cells and reduces their ability to fire rapidly.

When nerve cells fire too quickly, you feel pain, tingling, or burning sensations. Gabapentin slows down this overactivity without completely stopping normal nerve function. This helps reduce pain while letting your nerves continue their important work throughout your body.

Typical starting doses range from 300 mg once daily to 300 mg three times daily. Your doctor may slowly increase your dose over several days or weeks. Most people take between 900 mg and 3,600 mg per day, divided into three doses. Your doctor determines your exact dose based on your condition, kidney function, and how you respond to treatment. Never adjust your dose without talking to your doctor first.

• Dizziness or feeling unsteady when walking
• Drowsiness or tiredness during the day
• Swelling in your legs, ankles, or feet
• Blurred or double vision
• Dry mouth
• Weight gain over time
• Trouble with coordination
• Memory problems or confusion

Serious side effects need immediate medical attention. Call your doctor right away if you notice mood changes, depression, thoughts of self-harm, severe drowsiness, trouble breathing, or unusual bleeding or bruising. Allergic reactions are rare but require emergency care.

• Opioid pain medications can increase drowsiness and breathing problems
• Alcohol makes side effects worse and increases dizziness
• Antacids can reduce how much gabapentin your body absorbs
• Other seizure medications may need dose adjustments
• Anxiety medications and sleep aids increase sedation risks
• Morphine and hydrocodone change how your body processes gabapentin
• Kidney problems require lower doses because your body clears the drug more slowly

Your doctor should check your kidney function with blood tests before you start gabapentin and regularly during treatment. The medication leaves your body through your kidneys, so kidney health directly affects how the drug works. Tests measure creatinine levels and your estimated glomerular filtration rate, or eGFR, which shows how well your kidneys filter waste. If your kidney function declines, your doctor will adjust your dose to prevent the medication from building up in your body. People with existing kidney disease need more frequent monitoring and often take lower doses.