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  3. GB-Sag 300 Capsule

GB-Sag 300 Capsule, Pack of 1 Capsule
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Written By Lakshmithulasi Yarragunta ,
Reviewed By Bayyarapu Mahesh Kumar , M Pharmacy

GB-Sag 300 Capsule is used to manage or prevent neuropathic pain and epilepsy. Besides this, it is also used to treat fibromyalgia(a condition that causes body-wide pain and fatigue) and restless legs syndrome (a strong urge to move the legs, usually at night). GB-Sag 300 Capsule contains Gabapentin, which works by calming overactive nerve signals in the brain. This helps reduce nerve pain and lowers the risk of seizures. It may cause some side effects in some individuals, such as dizziness, drowsiness, fatigue, nausea, vomiting, fever, swelling, and ataxia (impaired balance or coordination). Before using this medicine, you should tell your doctor if you are allergic to any of its components or if you are pregnant/breastfeeding, and about all the medications you are taking and any pre-existing medical conditions.

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Composition :

GABAPENTIN-300MG

Consume Type :

ORAL

Return Policy :

Not Returnable

About GB-Sag 300 Capsule

GB-Sag 300 Capsule is used to treat nerve pain and epilepsy (seizures). It also helps with fibromyalgia and restless legs syndrome (an urge to move the legs due to discomfort). Nerve pain happens when the nerves are damaged or irritated. Epilepsy is a brain condition that causes repeated seizures due to abnormal brain activity.

GB-Sag 300 Capsule contains gabapentin, which works by calming overactive nerves in the body. It does this by attaching to certain channels in nerve cells, helping to reduce nerve pain and lower the chance of seizures.

GB-Sag 300 Capsule may cause common side effects such as dizziness, sleepiness, tiredness, nausea, vomiting, fever, swelling, or problems with balance or coordination (ataxia). Most of these side effects go away on their own. However, if they persist for a long time, consult your doctor.

Inform your doctor if you are allergic to GB-Sag 300 Capsule. Take GB-Sag 300 Capsule exactly as your doctor instructs you and for the duration prescribed. Do not stop suddenly, and don’t take more or less than directed, as this may cause withdrawal symptoms. Do not take GB-Sag 300 Capsule if you are pregnant or breastfeeding unless your doctor says it is safe. Do not give GB-Sag 300 Capsule to children unless a doctor has prescribed it for them.

Uses of GB-Sag 300 Capsule

GB-Sag 300 Capsule is used in the treatment of Neuropathic Pain and Epilepsy. The detailed uses of GB-Sag 300 Capsule are as follows:

  • Neuropathic Pain Relief: GB-Sag 300 Capsule is widely used to manage nerve pain caused by conditions such as diabetic neuropathy and postherpetic neuralgia, offering significant relief from discomfort.
  • Seizure Management: GB-Sag 300 Capsule serves as an adjunct therapy for partial seizures in both adults and children, enhancing control over seizure episodes.
  • Restless Legs Syndrome: GB-Sag 300 Capsule may be prescribed to alleviate symptoms of restless legs syndrome, providing relief from discomfort and improving sleep quality.
  • Anxiety Disorders: In some cases, GB-Sag 300 Capsule is used off-label for anxiety treatment, helping to lower anxiety levels and promote a sense of calm.
  • Fibromyalgia Treatment: GB-Sag 300 Capsule is effective in managing fibromyalgia symptoms, including widespread pain and sleep disturbances, thereby improving the overall quality of life for affected individuals.

Have a query?

Directions for Use

  • GB-Sag 300 Capsule can be taken with or without food, as advised by your doctor.
  • It is usually taken 3 times daily at the same time each day or as prescribed by your doctor.
  • Swallow GB-Sag 300 Capsule as a whole with a glass of water.
  • Do not crush, chew, break, or open it.

Medicinal Benefits

  • GB-Sag 300 Capsule belongs to a class of medications called anticonvulsants, primarily used to prevent neuropathic pain (pain due to damaged nerves), fibromyalgia (musculoskeletal pain), and epilepsy (fits).
  • It contains Gabapentin, which works by binding to a specific site on voltage-gated calcium channels and blocking the action of overexcited channels; this helps relieve nerve pain and lowers the risk of seizures. 
  • Overall, it reduces nerve pain by interfering with pain signals travelling through the damaged nerves and the brain.

How GB-Sag 300 Capsule Works

GB-Sag 300 Capsule contains Gabapentin, which works by binding to a specific site on voltage-gated calcium channels; this helps relieve nerve pain and lowers the risk of seizures. Additionally, it reduces the number of pain signals sent out by damaged nerves in the body.

Storage

• Store in a cool and dry place away from sunlight. • Keep out of sight and reach of children. • Non cold chain - To be stored in cool places at 10ºC to 25ºC or below 30ºC.
Side effects of GB-Sag 300 Capsule
  • Uncoordinated muscle movements need immediate medical attention.
  • Observe your movements and try to understand and control the particular movement.
  • Regularly do strengthening exercises to improve blood flow throughout the body and avoid involuntary movements.
  • Implement massage techniques to enhance blood flow to organs.
  • Take a balanced diet and quit smoking.
  • Practice yoga and meditation to improve thought processes and reduce uncontrolled and involuntary movements.
Here are the 7 steps to manage Dizziness caused by medication:
  • Inform your doctor about dizziness symptoms. They may adjust your medication regimen or prescribe additional medications to manage symptoms.
  • Follow your doctor's instructions for taking medication, and take it at the same time every day to minimize dizziness.
  • When standing up, do so slowly and carefully to avoid sudden dizziness.
  • Avoid making sudden movements, such as turning or bending quickly, which can exacerbate dizziness.
  • Drink plenty of water throughout the day to stay hydrated and help alleviate dizziness symptoms.
  • If you're feeling dizzy, sit or lie down and rest until the dizziness passes.
  • Track when dizziness occurs and any factors that may trigger it, and share this information with your doctor to help manage symptoms.
  • Get enough sleep. Maintain a regular sleep cycle.
  • Eat a healthy diet and exercise regularly.
  • Manage stress with yoga or meditation.
  • Limit alcohol and caffeine.
  • Avoid driving or operating machinery unless you are alert.
  • Rest well; get enough sleep.
  • Eat a balanced diet and drink enough water.
  • Manage stress with yoga and meditation.
  • Limit alcohol and caffeine.
  • Physical activities like walking or jogging might help boost energy and make you feel less tired.
  • Avoid driving or operating machinery or activities that require high focus until you know how the medication affects you.
  • Maintain a fixed sleeping schedule, create a relaxing bedtime routine and ensure your sleeping space is comfortable to maximize your sleep quality.
  • Limit alcohol and caffeine as these may worsen drowsiness and disturb sleep patterns.
  • Drink plenty of water as it helps with alertness and keeps you hydrated and for overall well-being.
  • Moderate physical activity can improve energy levels, but avoid intense workouts right before bedtime.
  • Wear an eye patch or opaque contact lens or lens applied to glasses to block the vision of one eye to minimize double vision.
  • Use prisms (lenses applied to glasses) to correct double vision due to small misalignments.
  • Try doing some eye exercises such as moving the target towards nose slowly or focussing on a detailed target like thin stick or small text in a magazine.
  • If you feel eye pain, develop bulging eyes, have weakness, headache or double vision, consult a doctor immediately.
  • Regular eye exams can detect conditions causing Involuntary Eye Movement.
  • Alcohol and drugs should be avoided as they can increase the symptoms of nystagmus.
  • Wearing corrective lenses for refractive errors can reduce eye strain and symptoms.
  • Stress management and getting proper sleep can help to reduce symptoms.

What if I have taken an overdose of GB-Sag 300 Capsule

Do not take more than the prescribed dose of GB-Sag 300 Capsule, as it may cause serious adverse effects such as slurred speech, drowsiness, dizziness, slow breathing, tiredness, diarrhoea, tremor, or double vision. If you suspect you have taken an overdose or notice signs of overdose, please consult a doctor immediately.

Drug Warnings

  • Do not take GB-Sag 300 Capsule if you are allergic to any of its contents.
  • Inform your doctor before taking GB-Sag 300 Capsule if you have symptoms of suicidal ideation or behaviour, drug addiction, chronic pulmonary insufficiency, muscle weakness, heart problems, liver/kidney impairment.
  • Please do not stop taking GB-Sag 300 Capsule without consulting your doctor, as it could cause withdrawal symptoms. Consult your doctor immediately if you experience suicidal tendencies.
  • Do not take GB-Sag 300 Capsule if you are pregnant or breastfeeding unless prescribed by the doctor.
  • GB-Sag 300 Capsule may cause dizziness, drowsiness, and blurred/double vision, so avoid driving or operating machines unless you are fully alert.
  • Avoid consuming alcohol and St John's Wort herbal supplement (antidepressant) while using GB-Sag 300 Capsule, as it might cause increased dizziness and sleepiness.

Drug-Drug Interactions

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GabapentinBuprenorphine
Severe
GabapentinRemifentanil
Severe

Drug-Drug Interactions

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GabapentinBuprenorphine
Severe
How does the drug interact with GB-Sag 300 Capsule:
Co-administration of Buprenorphine and GB-Sag 300 Capsule may cause central nervous system depression and lead to serious side effects (respiratory distress -build-up of fluid in the air sacs of the lungs).

How to manage the interaction:
Although there is a possible interaction between GB-Sag 300 Capsule and Buprenorphine, you can take these medicines together if prescribed by a doctor. However, if you experience shortness of breath, fast heart rate, fast breathing, extreme tiredness, fever, cough with phlegm, or shallow breaths, consult the doctor immediately. Do not discontinue any medications without a doctor's advice.
GabapentinRemifentanil
Severe
How does the drug interact with GB-Sag 300 Capsule:
Combining Remifentanil with GB-Sag 300 Capsule can increase the risk of side effects.

How to manage the interaction:
Taking GB-Sag 300 Capsule with Remifentanil together can possibly result in an interaction, but it can be taken if a doctor has advised it. If you notice any symptoms like trouble breathing, dizziness, or trouble focusing, make sure to contact a doctor right away. Do not discontinue any medications without consulting a doctor.
GabapentinButorphanol
Severe
How does the drug interact with GB-Sag 300 Capsule:
Co-administration of Butorphanol and GB-Sag 300 Capsule may cause central nervous system depression and lead to serious side effects such as respiratory distress (build-up of fluid in the air sacs of the lungs).

How to manage the interaction:
Although there is a possible interaction between GB-Sag 300 Capsule and Butorphanol, you can take these medicines together if prescribed by a doctor. However, if you experience shortness of breath, fast heart rate, fast breathing, extreme tiredness, fever, cough with phlegm, or shallow breaths, please consult a doctor immediately. Do not discontinue any medications without a doctor's advice.
GabapentinSufentanil
Severe
How does the drug interact with GB-Sag 300 Capsule:
Combining Sufentanil with GB-Sag 300 Capsule can increase the risk of CNS depression.

How to manage the interaction:
There may be a possibility of interaction between GB-Sag 300 Capsule and Sufentanil, but it can be taken if prescribed by a doctor. It's important to keep an eye on your health and talk to a doctor about any concerns. They can recommend different options that won't cause any problems. If you notice any symptoms like trouble breathing, feeling dizzy or tired, or having trouble focusing, make sure to call your doctor right away. Do not discontinue any medications without first consulting your doctor.
GabapentinMethadone
Severe
How does the drug interact with GB-Sag 300 Capsule:
Co-administration of Methadone and GB-Sag 300 Capsule may cause central nervous system depression and lead to serious side effects such as respiratory distress (build-up of fluid in the air sacs of the lungs).

How to manage the interaction:
Although there is a possible interaction between GB-Sag 300 Capsule and Methadone, you can take these medicines together if prescribed by a doctor. However, if you experience shortness of breath, fast heart rate, fast breathing, extreme tiredness, fever, cough with phlegm, or shallow breaths, please consult your doctor immediately. Do not discontinue any medications without a doctor's advice.
GabapentinCodeine
Severe
How does the drug interact with GB-Sag 300 Capsule:
Combining Codeine with GB-Sag 300 Capsule can increase the risk of CNS depression.

How to manage the interaction:
Taking GB-Sag 300 Capsule with Codeine together can possibly result in an interaction, but it can be taken if a doctor has advised it. If you notice any symptoms like trouble breathing, feeling dizzy or tired, or having trouble focusing, make sure to contact a doctor right away. Do not stop using any medications without a doctor's advice.
GabapentinKetamine
Severe
How does the drug interact with GB-Sag 300 Capsule:
Using Ketamine together with GB-Sag 300 Capsule may increase side effects.

How to manage the interaction:
Although taking Ketamine and GB-Sag 300 Capsule together can evidently cause an interaction, it can be taken if a doctor has suggested it. If you start feeling dizzy, tired, confused, have trouble focusing, feel very sleepy, or have trouble breathing, make sure to call a doctor right away. Do not discontinue any medications without consulting a doctor.
GabapentinOxycodone
Severe
How does the drug interact with GB-Sag 300 Capsule:
Combining Oxycodone with GB-Sag 300 Capsule can increase the risk of CNS depression.

How to manage the interaction:
Taking GB-Sag 300 Capsule with Oxycodone together can possibly result in an interaction, but it can be taken if a doctor has advised it. If you notice any symptoms like trouble breathing, dizziness, or trouble focusing, make sure to contact a doctor right away. Do not stop using any medications without a doctor's advice.
GabapentinTramadol
Severe
How does the drug interact with GB-Sag 300 Capsule:
Co-administration of Tramadol with GB-Sag 300 Capsule may cause central nervous system depression and lead to serious side effects such as respiratory distress (build-up of fluid in the air sacs of the lungs).

How to manage the interaction:
Although there is a possible interaction between GB-Sag 300 Capsule and Tramadol, you can take these medicines together if prescribed by your doctor. However, if you experience shortness of breath, fast heart rate, fast breathing, extreme tiredness, fever, cough with phlegm, or shallow breaths, please consult your doctor immediately. Do not discontinue any medications without a doctor's advice.
GabapentinEsketamine
Severe
How does the drug interact with GB-Sag 300 Capsule:
Combining GB-Sag 300 Capsule with Esketamine can increase the risk of side effects.

How to manage the interaction:
Although taking GB-Sag 300 Capsule and Esketamine together can evidently cause an interaction, it can be taken if a doctor has suggested it. Consult a doctor if you experience any symptoms such as drowsiness, confusion, difficulty concentrating, and impairment in thinking, judgment, reaction speed, and motor coordination. Do not stop using any medications without a doctor's advice.

Drug-Food Interactions

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No Drug - Food interactions found in our database. Some may be unknown. Consult your doctor for what to avoid during medication.

Drug-Food Interactions

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Diet & Lifestyle Advise

  • Include food rich in vitamin B and D in your diet.
  • Include cayenne pepper in your diet, as it can help reduce neuropathic pain.
  • Exercising regularly helps improve overall health and combat pain.
  • Rest well, get plenty of sleep.
  • Try to take a warm bath as it can be soothing.
  • Avoid smoking and alcohol consumption.
  • Using essential oils for massages can help increase circulation.
  • Acupuncture can be helpful by stimulating pressure points.
  • Meditation and yoga can help lower stress, decrease pain sensitivity, and improve coping skills.

Habit Forming

Yes

Therapeutic Class

ANTICONVULSANT

GB-Sag 300 Capsule Substitute

Substitutes safety advice
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Alcohol

Unsafe

Avoid consuming alcohol while taking GB-Sag 300 Capsule, as it may worsen the side effects like dizziness and sleepiness.

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Pregnancy

Consult your doctor

It is not fully known whether GB-Sag 300 Capsule can affect pregnancy or harm an unborn baby. If you are pregnant or planning to become pregnant, tell your doctor.

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Breast Feeding

Consult your doctor

If you are breastfeeding, please consult your doctor before starting GB-Sag 300 Capsule. Your doctor will weigh the benefits and potential risks before prescribing GB-Sag 300 Capsule.

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Driving

Unsafe

GB-Sag 300 Capsule may cause dizziness, drowsiness, and blurred/double vision. Therefore, avoid driving or operating machines while using GB-Sag 300 Capsule.

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Liver

Caution

Take GB-Sag 300 Capsule with caution, especially if you have or had a history of liver disease. The dose may be adjusted by your doctor as required.

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Kidney

Caution

Take GB-Sag 300 Capsule with caution, especially if you have or had a history of kidney disease/conditions. The dose may be adjusted by your doctor as required.

bannner image

Children

Unsafe

GB-Sag 300 Capsule is not recommended for children below 6 years of age, as its safety and effectiveness have not been established.

FAQs

GB-Sag 300 Capsule belongs to a group of medications called anticonvulsants, primarily used to manage or prevent neuropathic pain and epilepsy. Besides this, it is also used to treat fibromyalgia (musculoskeletal pain) and restless legs syndrome (a condition causing leg discomfort and an uncontrollable urge to move the legs).

GB-Sag 300 Capsule contains Gabapentin, which is an anticonvulsant medication. In epilepsy, it works by stopping seizures by reducing the abnormal electrical activity in the brain. In nerve pain, it interferes with pain messages travelling through the brain and down the spine to block pain.

Do not drive or operate machinery if you experience dizziness or drowsiness while using GB-Sag 300 Capsule. GB-Sag 300 Capsule can also sometimes cause blurry/double vision, hence avoid driving in such situations. Seek medical attention if the symptoms persist longer.

The common side effects of GB-Sag 300 Capsule are dizziness, drowsiness, fatigue, nausea, vomiting, fever, swelling, and ataxia (impaired balance or coordination). Most of these side effects do not require medical attention and will resolve gradually over time. However, you are advised to talk to your doctor if you experience these side effects persistently.

Yes, GB-Sag 300 Capsule may cause weight gain because, as it increases your hunger. However, regular physical exercise and a balanced diet with low-calorie food may help you keep your weight stable. Please consult your doctor if you have any further concerns about keeping your weight stable.

Some people, after taking it for a long time, have become addicted to GB-Sag 300 Capsule. If this happens, once you stop taking the drug, you will have withdrawal symptoms. If you are worried about being physically dependent on GB-Sag 300 Capsule, talk to your doctor.

GB-Sag 300 Capsule is intended to be used to manage or prevent neuropathic pain and epilepsy. It can help improve sleep in some cases. While it's not specifically approved for insomnia. it's crucial to consult with a healthcare professional to discuss your specific needs and potential risks.

The onset of pain relief from GB-Sag 300 Capsule can vary from person to person. While some people feel better after a few days, others may take many weeks to observe a significant change. If you don't see any relief after a few weeks or if your pain worsens, you should see your doctor.

GB-Sag 300 Capsule may cause weight gain in some people. While this does not happen for everyone, it's a possibility. If you are worried about weight gain while taking GB-Sag 300 Capsule, it is important to discuss your concerns with your doctor. They can help you evaluate the benefits and risks of the medication and explore alternative treatment options if needed.

The duration of GB-Sag 300 Capsule treatment varies based on individual factors. Your condition, how your body responds, the severity of your symptoms, and your doctor's recommendations will determine how long you'll need to take it. Always follow your doctor's instructions and avoid stopping the medication abruptly.

Very few people taking GB-Sag 300 Capsule have serious side effects. These include suicidal thoughts, an inflamed pancreas, hallucinations, and allergic reactions. If you experience any of these severe side effects while taking GB-Sag 300 Capsule, it is essential to seek medical attention immediately.

GB-Sag 300 Capsule is not typically considered habit-forming. It does not have the same addictive potential as opioids.

No, you should not take GB-Sag 300 Capsule off and on. Stopping and starting the medication can lead to unpredictable side effects and may not effectively manage your nerve pain.

Taking more than the recommended dose of GB-Sag 300 Capsule can lead to serious side effects. If you or someone you know has taken too much of this medication, it is important to seek medical attention immediately. Call a doctor immediately or go to the nearest hospital.

Before taking the GB-Sag 300 Capsule, let your doctor know about all your medical conditions, sensitivities, and all medications you are using. And inform your doctor if you are pregnant, planning to become pregnant, or breastfeeding.

While taking GB-Sag 300 Capsule, it is essential to avoid alcohol and other sedating medications to prevent excessive drowsiness and impaired judgment. Avoid driving or operating machinery until you know how $nam affects your coordination. To prevent seizures, do not stop taking GB-Sag 300 Capsule abruptly without consulting your doctor. If you need to take antacids, wait at least 2 hours before taking GB-Sag 300 Capsule to avoid interference with its absorption. If you are pregnant or breastfeeding, discuss the risks and benefits of GB-Sag 300 Capsule with your healthcare provider.

GB-Sag 300 Capsule may cause dizziness or drowsiness. It can also sometimes cause blurry/double vision. Therefore, avoid driving or operating machines after taking GB-Sag 300 Capsule. Seek medical attention if the symptoms persist.

Take GB-Sag 300 Capsule with caution, especially if you have or had a history of kidney disease/conditions. The dose may be adjusted by your doctor as required. So, inform your doctor about your condition before prescribing GB-Sag 300 Capsule.

It is generally not recommended to take GB-Sag 300 Capsule during pregnancy or breastfeeding without careful consideration and discussion with your doctor. They can provide the most accurate and appropriate information for your specific circumstances.

Country of origin

India
Other Info - GB25630

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Author Details

Bayyarapu Mahesh KumarDoctor badge

Reviewed By

Bayyarapu Mahesh Kumar

M Pharmacy

Last Updated

Sep 17, 2025 | 2:02 PM IST

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Reference

  1. https://www.nhs.uk/medicines/gabapentin/
  2. https://medlineplus.gov/druginfo/meds/a694007.html
  3. https://www.drugs.com/gabapentin.htm
  4. https://www.medicines.org.uk/emc/files/pil.2361.pdf
  5. https://www.accessdata.fda.gov/drugsatfda_docs/label/2017/020235s064_020882s047_021129s046lbl.pdf
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