Short & Long-Term Effects of Gabapentin

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Updated February 28, 2025

Authored By:

Joe Gilmore

Edited By

Amy Leifeste

Medically Reviewed By

Javier Rodriguez-Winter

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Authored By:

Karena Mathis

Edited By

Amy Leifeste

Medically Reviewed By

Javier Rodriguez-Winter

Explore treatment options today. For general drug info, contact your doctor.

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Short & Long-Term Effects of Gabapentin

Gabapentin is a prescribed medication that can be highly effective when used as directed. Like all medications, misusing gabapentin can be dangerous.

This guide to gabapentin highlights what to expect from this anticonvulsant drug and shows you how to connect with compassionate and effective treatment for substance abuse [1].

What Is Gabapentin?

Gabapentin is a medication that helps stop seizures in people with epilepsy [2]. While it doesn’t cure epilepsy, it can help prevent the seizures from happening. Gabapentin also helps with nerve pain, like the discomfort you can get from shingles, and it can help people who have RLS (restless legs syndrome) [3]. You can only get gabapentin with a prescription from a doctor. It comes in capsules, tablets, and liquid form.

Effects of Gabapentin

Gabapentin is a medication that helps control seizures in people with epilepsy. Gabapentin also helps relieve nerve pain, such as pain from shingles and restless legs syndrome.

Common Short-Term Side Effects of Gabapentin

When you start taking gabapentin, you might notice some side effects. These are usually mild and go away after a while. Common short-term side effects include:

  • Feeling sleepy or drowsy
  • Feeling dizzy
  • Feeling tired
  • Headache
  • Dry mouth
  • Swelling in your hands or feet
  • Trouble concentrating
  • Nausea or upset stomach
  • Blurred vision
  • Weight gain

If these side effects bother you or don’t go away, talk to your doctor.

Long-Term Use of Gabapentin Effects

Taking gabapentin for a long time can have various effects on your body and mind. While this medication can help manage seizures and nerve pain, it’s vital to be aware of potential gabapentin long term side effects and monitor your health regularly.

  • Ongoing drowsiness and dizziness: Many people experience drowsiness or dizziness when they first start taking gabapentin. For some, these feelings can continue with long-term use. This can affect your daily activities, making it harder to concentrate or stay alert. Avoid activities that require full attention, like driving, until you know how gabapentin affects you.
  • Cognitive changes: Gabapentin can sometimes cause problems with thinking and memory [4]. You might notice it’s harder to remember things or think clearly. This can be frustrating and impact your daily life. Regular mental exercises and staying engaged in activities can help keep your mind sharp, but it’s essential to report symptoms of gabapentin and memory loss to your doctor.
  • Mood and behavior changes: Long-term use of gabapentin can lead to changes in mood and behavior. Some people may feel more anxious, depressed, or irritable. In rare cases, gabapentin can cause more serious mental health issues, such as suicidal thoughts or actions. Communicate any mood changes to your doctor immediately.
  • Physical coordination issues: Gabapentin can affect your physical coordination and balance. This might make you feel unsteady on your feet, increasing the risk of falls and injuries. Engaging in regular physical therapy or balance exercises can help manage these effects, but ongoing issues should be discussed with your healthcare provider.
  • Weight gain and swelling: Some people may gain weight while taking gabapentin over a long period. This weight gain can be accompanied by swelling in the hands, feet, or legs. Maintaining a healthy diet and regular exercise can help manage weight, but if swelling persists, seek medical advice.
  • Digestive problems: Gabapentin can cause digestive issues like nausea, vomiting, or constipation, which may persist with long-term use. Eating a balanced diet with plenty of fiber, staying hydrated, and regular physical activity can help alleviate these symptoms. However, if digestive problems continue, consult your doctor.
  • Dependence and withdrawal: Although gabapentin is not considered highly addictive, long-term use can lead to physical dependence [5]. If you stop taking gabapentin suddenly, you might experience withdrawal symptoms such as anxiety, sweating, nausea, and pain. Follow your doctor’s guidance when discontinuing gabapentin to minimize withdrawal risks.

To manage long-term effects, regular check-ups with your doctor are essential. These visits allow your doctor to monitor your health, adjust dosages, and address any side effects you may experience. Blood tests, mental health assessments, and other evaluations may be part of your routine care to ensure gabapentin continues to be safe and effective for you.

By being aware of these potential long-term effects and maintaining open communication with your healthcare provider, you can use gabapentin safely and effectively over the long term.

Serious & Rare Effects of Gabapentin

What are the most serious side effects of gabapentin, then?

  • Prolonged withdrawal symptoms: In some cases, people might experience prolonged withdrawal symptoms, such as anxiety, insomnia, or pain, even after stopping the medication. These symptoms can be difficult to manage and may require medical supervision.
  • Ongoing neuropathic pain: Ironically, while gabapentin is used to treat nerve pain, it can sometimes cause an increase in sensitivity to pain (hyperalgesia) [6] after long-term use. This means that individuals might experience chronic pain or discomfort even after stopping the medication.
  • Tremors and motor skill issues: Some individuals may develop tremors or other motor skill issues while taking gabapentin. These can affect daily activities and may persist even after the medication is stopped.
  • Abdominal pain: Gabapentin can cause severe abdominal pain and digestive issues like nausea and vomiting. While these are usually temporary, they can become chronic in rare cases, impacting overall digestive health.
  • Blood pressure changes: Gabapentin blood pressure changes can sometimes occur. These changes can be dangerous, especially for individuals with pre-existing cardiovascular conditions. Regular monitoring of blood pressure is advised.
  • Peripheral edema: Swelling in the extremities, known as peripheral edema, can occur with gabapentin use. This condition can cause discomfort and may persist, requiring medical management.
  • Mental health effects: Gabapentin can lead to serious mental health side effects, including anxiety, aggression, and temporary amnesia. In children between the ages of 3 and 12, it can cause mood changes, aggressive behavior, impaired concentration, hyperactive behavior, and changes in academic performance.
  • Gabapentin toxicity in kidney disease: Individuals with a history of kidney disease [7] may be at risk for gabapentin toxicity since the drug is substantially excreted through the kidneys. Regular kidney function tests are essential for these patients.

The best way to avoid serious side effects from gabapentin is to stay in close touch with your doctor. Regular check-ups, blood tests, and mental health check-ins can help find any problems early. If you notice any strange symptoms or side effects, tell your doctor right away.

What are the Permanent Side Effects of Gabapentin?

Permanent side effects from gabapentin are very rare. These long-lasting effects can happen if the medication is used for a long time or if there are complications.

  • Vision: Some people might experience changes in their vision that do not go away after stopping gabapentin. This can include blurry vision or other visual issues.
  • Pain Sensitivity: Gabapentin is used to help with nerve pain, but in some rare cases, it can make people more sensitive to pain. This can lead to ongoing pain even after the medication is stopped.
  • Altered Mood & Behavior: Gabapentin can affect mood and behavior. Some people might develop long-term mood problems like depression or anxiety. These changes might not go away after stopping the medication.
  • Coordination: Some people might have lasting problems with balance and coordination. This can make it harder to move around and do daily activities.
  • Digestive Issues: Gabapentin can cause stomach issues like nausea and vomiting. In rare cases, these problems can become permanent, causing ongoing digestive discomfort.
  • Trouble Breathing: Gabapentin can cause breathing problems, especially in people with other health conditions. Some people might have long-term breathing difficulties after using gabapentin.

Using Gabapentin

Gabapentin is a medication that can be very helpful for controlling seizures and relieving nerve pain. You should use the medication only as directed by a healthcare provider.

Using gabapentin safely involves adhering to your healthcare provider’s instructions and taking several precautions. First, start with the prescribed dosage and follow any recommended titration schedule. Gabapentin is typically introduced at a low dose and gradually increased to minimize side effects like dizziness, fatigue, or coordination issues. It’s crucial to maintain a consistent dosing schedule to keep drug levels stable in your system.

You should never abruptly stop taking gabapentin without talking to your doctor, as this can lead to dangerous withdrawal symptoms or increased seizure frequency. If you happen to miss a dose, take it as soon as you remember, but skip it if it’s nearly time for your next dose—do not double up on the medication.

How Long Does It Take to Notice The Effects of Gabapentin?

When you start taking gabapentin, you might not notice its effects right away. Here’s what to expect:

  • Seizure control: If you are taking gabapentin for seizures, it may take a few days to a few weeks to see a reduction in seizure activity. Keep taking the medication as prescribed and do not get discouraged if you don’t see immediate results.
  • Nerve pain relief: For nerve pain, like pain from shingles or restless legs syndrome, you might start feeling relief within a few days. However, it can take up to two weeks to feel the full effects.
  • Dosage adjustments: Your doctor might need to adjust your dosage to find the right amount that works best for you. Be patient and communicate with your doctor about how you are feeling. Always follow your doctor’s instructions and give the medication time to work.

Stopping Gabapentin Safely

If you need to stop taking gabapentin, here’s how to avoid withdrawal symptoms:

  • Gradual reduction: Do not stop taking gabapentin suddenly. Your doctor will help you gradually reduce the dosage over time. This helps prevent withdrawal symptoms like anxiety, sweating, nausea, and pain.
  • Withdrawal symptoms: If you stop taking gabapentin too quickly, you might experience withdrawal symptoms. These can include insomnia, agitation, and flu-like symptoms. If you have any of these symptoms, contact your doctor immediately.
  • Medical supervision: Always stop gabapentin under the supervision of your doctor. They will guide you through the process to ensure it is safe and comfortable.

Misuse and Addiction Risk

Gabapentin is generally considered safe when used as prescribed, but there is a risk of misuse and addiction. Here’s what to watch out for:

  • Misuse: Some people might misuse gabapentin to feel relaxed or to feel a gabapentin high. This is dangerous and can lead to serious health problems. Always take gabapentin exactly as your doctor prescribes.
  • Signs of misuse: Watch for signs of misuse, such as taking more than the prescribed dose, taking it more often, or using it without a prescription. If you notice any of these signs, talk to your doctor right away.
  • Addiction risk: While gabapentin is not considered highly addictive, it can lead to dependence, especially if used in high doses or for a long time. Be honest with your doctor about your medication use and any concerns you have.

To use gabapentin safely, follow these tips:

  • Take gabapentin exactly as your doctor prescribes. Do not take more or less than directed.
  • Have regular check-ups with your doctor to monitor your health and make any necessary adjustments to your medication.
  • Report any side effects or unusual symptoms to your doctor immediately.
  • Keep gabapentin out of reach of children and do not share your medication with anyone else.

Gabapentin Effects | FAQs

Why is gabapentin bad?

Gabapentin can be bad because it can cause dizziness, drowsiness, and confusion. It can also lead to misuse and addiction if not taken as prescribed.

Is gabapentin addictive?

Yes, gabapentin can be addictive. Some people might misuse it to feel relaxed or high.

Can gabapentin cause tremors?

Yes, gabapentin can cause tremors. Tremors are shaking movements that you can’t control.

What are the side effects of gabapentin 300mg?

Common side effects of gabapentin 300mg include dizziness, tiredness, and swelling in your hands and feet.

 What are gabapentin side effects in women?

Women can experience side effects like dizziness, fatigue, and swelling. They might also feel mood changes or have trouble sleeping.

 How long can you stay on gabapentin?

You can stay on gabapentin as long as your doctor thinks it’s safe. Follow your doctor’s advice and have regular check-ups.

Get Treatment for Prescription Drug Addiction at Gratitude Lodge

If you require compassionate addiction treatment for yourself or a loved one dealing with substance abuse, reach out to Gratitude Lodge. We have luxury facilities in Newport Beach and Long Beach, California. We work with all major health insurers to widen access to effective addiction treatment.

We offer supervised medical detox to help people withdraw from medications like gabapentin safely and comfortably. After a tapered reduction in dosage, you can move into continued treatment at one of our rehabs by the beach.

Our immersive inpatient programs provide an environment free of triggers and distractions. You can access a personalized range of therapies that include:

  • MAT (medication-assisted treatment)
  • Counseling
  • Talk therapy
  • Holistic therapy
  • Family therapy
  • Group therapy
  • Aftercare

Start your recovery right away by calling 844-576-0144.

Sources

[1] https://nida.nih.gov/publications/drugs-brains-behavior-science-addiction/treatment-recovery

[2] https://www.ninds.nih.gov/health-information/disorders/epilepsy-and-seizures

[3] https://www.ninds.nih.gov/health-information/disorders/restless-legs-syndrome

[4] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5802689/

[5] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8583742/

[6] https://www.cancer.gov/publications/dictionaries/cancer-terms/def/hyperalgesia

[7] https://www.kidney.org/atoz/content/about-chronic-kidney-disease

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Jenni Bussi

Jenni Busse MS, LPCC

Jenni Busse MS, LPSS is the Clinical Director at Gratitude Lodge. Jenni oversees the clinical program and the clinical team at Gratitude Lodge as a whole. Jenni has worked in treatment for almost 14 years. Her background as a licensed therapist and her passion for helping others intersected with addiction recovery when she started working primarily in detox residential treatment.
Joe Gilmore

Joseph Gilmore

Joseph Gilmore has been working in the addiction industry for half a decade and has been writing about addiction and substance abuse treatment during that time. He has experience working for facilities all across the country. Connect with Joe on LinkedIn.

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