Gabapentin Mylan 600 mg tablets Gabapentin Mylan 800 mg tablets – patient leaflet, side effects, dosage

1. What Gabapentin Mylan is and what it is used for

This medicine has been prescribed for you to treat epilepsy and peripheral neuropathic pain (long lasting pain caused by damage to the nerves).

The active ingredient in Gabapentin Mylan is gabapentin. which belongs to a class of medicines called Gabapentinoids.

This medicine has been prescribed to you and should not be given to anyone else.

Epilepsy: Gabapentin Mylan is used to treat various forms of epilepsy (seizures that are initially limited to certain parts of the brain, whether the seizure spreads to other parts of the brain or not). Your doctor will prescribe this medicine for you to help treat your epilepsy when your current treatment is not fully controlling your condition. You should take Gabapentin Mylan in addition to your current treatment unless told otherwise. Gabapentin Mylan can also be used on its own to treat adults and children over 12 years of age.

Peripheral neuropathic pain: Gabapentin Mylan is used to treat long lasting pain caused by damage to the nerves. A variety of different diseases can cause peripheral (primarily occurring in the legs and/or arms) neuropathic pain, such as diabetes or shingles. Pain sensations may be described as hot, burning, throbbing, shooting, stabbing, sharp, cramping, aching, tingling, numbness, pins and needles etc.

Gabapentinoids can cause dependence, tolerance and addiction, and you may get withdrawal symptoms if you stop taking it or reduce the dose suddenly. Your prescriber should have explained how long you will be taking it for and, when it is appropriate to stop, how to do this safely. When your treatment is stopped, it is usually done gradually over a period which is specific to you and may occur over a period of weeks to months. If this medicine is being used for the treatment of epilepsy you must continue to take it as prescribed by your doctor.

2. What you need to know before you take Gabapentin Mylan

Do not take Gabapentin Mylan:

• if you are allergic to gabapentin or any of the other ingredients of this medicine (listed in section 6).

Warnings and precautions

Talk to your doctor or pharmacist before taking Gabapentin Mylan:

• if you suffer from kidney problems - your doctor may prescribe a different dosing schedule - if you are on haemodialysis (to remove waste products because of kidney failure) - tell your doctor if you develop muscle pain and/or weakness.
• if you have myasthenia gravis (a disease causing muscle weakness) because this medicine may make your symptoms worse

• if you have nervous system disorders, breathing disorders, or you are more than 65 years old.

  Your doctor may prescribe you a different dosing schedule.

• if you are or have ever been addicted to opioids, dependent on alcohol, prescription medicines or illegal drugs; or if you have ever had a history of struggling to control your alcohol or drug intake
• Have previously suffered from withdrawal symptoms such as agitation, anxiety, shaking or sweating, when you have stopped taking alcohol or drugs
• Feel you need to take more of Neurontin to get the same level of symptom control, this may mean you are developing tolerance to the effects of this medicine or are becoming addicted to it. Speak to your prescriber who will discuss your treatment and may change your dose or switch you to an alternative medication.

Cases of abuse and dependence have been reported for gabapentin. Talk to your doctor if you have a history of abuse or dependence.

Dependence

Taking this medicine regularly, particularly for a long time, can lead to physical dependence and addiction. Your prescriber should have explained how long you will be taking it for and, when it is appropriate to stop, how to do this safely. When your treatment is stopped, it is usually done gradually over a period which is specific to you and may occur over a period of weeks to months.

Physical dependence and addiction can cause withdrawal symptoms when you stop taking this medicine. Withdrawal symptoms can include trouble sleeping, headache, nausea, feeling anxious, diarrhoea, flu-like symptoms, convulsions, nervousness, depression, thoughts of harming or killing yourself, pain, sweating, and dizziness.

Your prescriber will discuss with you how to gradually reduce your dose before stopping the medicine. It is important that you do not stop taking the medicine suddenly as you will be more likely to experience withdrawal symptoms. Your prescriber will ensure that your plan for stopping treatment is tailored to you and can be adapted according to your needs and experience of any withdrawal symptoms.

Gabapentinoids should only be used by those they are prescribed for. Do not give your medicine to anyone else. Taking higher doses or more frequent doses of gabapentinoids may increase the risk of addiction. Overuse and misuse can lead to overdose and/or death.

Some people may become dependent on gabapentin (a need to keep taking the medicine). They may have withdrawal effects when they stop using gabapentin or reduce the dose (see section 3, ‘“How to take gabapentin’” and ‘“If you stop taking gabapentin’”). If you have concerns that you may become dependent on gabapentin, it is important that you consult your doctor. If you notice any of the following signs whilst taking gabapentin, it could be a sign that you have become dependent.

• You feel you need to take the medicine for longer than advised by your prescriber
• You feel you need to take more than the recommended dose
• You are using the medicine for reasons other than prescribed
• You have made repeated, unsuccessful attempts to quit or control the use of the medicine
• When you stop taking the medicine you feel unwell, and you feel better once taking the medicine again

If you notice any of these, speak to your doctor to discuss the best treatment pathway for you, including when it is appropriate to stop and how to do this safely.

During treatment

If you develop signs such as persistent stomach pain, feeling sick and being sick contact your doctor immediately as these may be signs of acute pancreatitis (an inflamed pancreas).

A small number of people being treated with antiepileptics such as gabapentin have had thoughts of harming or killing themselves. If at any time you have these thoughts, contact your doctor immediately.

Increase in seizures or new types of seizure have been seen in some people taking gabapentin. Talk to your doctor or pharmacist if you notice a change to your condition.

If you experience any signs such as feeling dizzy and drowsy (which could increase accidental injury), confusion, loss of consciousness and reduced mental state while taking gabapentin, talk to you doctor or pharmacist for advice.

Important information about potentially serious reactions

Serious skin rashes including Stevens-Johnson syndrome, toxic epidermal necrolysis and drug reaction with eosinophilia and systemic symptoms (DRESS) have been reported in association with gabapentin. Stop using gabapentin and seek medical attention immediately if you notice any of the symptoms related to these serious skin reactions described in section 4.

Read the description of these signs in section 4 of this leaflet under ‘Stop taking this medicine and contact your doctor immediately or go to the nearest hospital casualty department straight away if you experience any of the following signs after taking this medicine as they can be serious’.

Other medicines and Gabapentin

Tell your doctor or pharmacist if you are taking, have recently taken or might take any other medicines. In particular, tell your doctor or pharmacist if you are taking or have been recently taking any medicines for convulsions, sleeping disorders, depression, anxiety, or any other neurological or psychiatric problems.

Medicine containing opioids such as morphine

If you are taking any medicines containing opioids (such as morphine), please tell your doctor or pharmacist as opioids may increase the effect of gabapentin. In addition, combination of gabapentin with opioids may cause symptoms like sleepiness and/or decrease in breathing or death.

Antacids for indigestion

If gabapentin and antacids containing aluminium and magnesium are taken at the same time, absorption of gabapentin from the stomach may be reduced. It is therefore recommended that Gabapentin Mylan is taken at least two hours after taking an antacid.

This medicine:

• is not expected to interact with other antiepileptic medicines or oral contraceptive pills containing norethindrone or ethinyl estradiol
• may interfere with some laboratory tests - if you require a urine test tell your doctor or hospital what you are taking.

Pregnancy and breast-feeding

If you are pregnant or breastfeeding, think you may be pregnant or are planning to have a baby, ask your doctor or pharmacist for advice before taking this medicine.

Pregnancy

Gabapentin Mylan can be used during the first trimester of pregnancy if needed.

If you plan to become pregnant or if you are pregnant or think you may be pregnant, talk to your doctor straight away.

If you have become pregnant and you have epilepsy, it is important that you do not stop taking your medicine without first consulting your doctor, as this may worsen your illness. Worsening of your epilepsy may put you and your unborn child at risk.

In a study reviewing data from women in Nordic countries who took gabapentin in the first 3 months of pregnancy, there was no increased risk of birth defects or problems with the development of brain function (neurodevelopment disorders). However, babies of women who took gabapentin during pregnancy had an increased risk of low birth weight and preterm birth.

Do not suddenly stop taking this medicine as this may lead to breakthrough seizure, which could have serious consequences for you and your baby.

If used during pregnancy, gabapentin may lead to withdrawal symptoms in newborn infants. This risk might be increased when gabapentin is taken together with opioid analgesics (drugs for treatment of severe pain).

Breast-feeding

Gabapentin passes into human milk. Because the effect on the nursing newborn is unknown, it is not recommended to breast-feed your baby while taking this medicine.

Driving and using machines

Gabapentin Mylan may cause dizziness, drowsiness and tiredness. You should not drive, operate machinery or engage in other potentially hazardous activities until you know whether this medication affects your ability to perform these activities.

3. How to take Gabapentin Mylan

Always take this medicine exactly as your doctor has told you. Check with your doctor or pharmacist if you are not sure. Do not take more medicine than prescribed.

Your doctor will determine what dose is appropriate for you.

Your prescriber should have discussed with you how long the course of tablets will last. They will arrange a plan for stopping treatment. This will outline how to gradually reduce the dose and stop taking the medicine. Your prescriber will ensure that your plan for stopping treatment is tailored to you and can be adapted according to your needs and experience of any withdrawal symptoms.

If you have the impression that the effect of Gabapentin Mylan is too strong or too weak, talk to your doctor or pharmacist.

Peripheral Neuropathic Pain:

Adults:

Take the number of tablets as instructed by your doctor. Your doctor will usually build up your dose gradually.

The recommended starting dose will generally be between 300 mg and 900 mg each day. Thereafter, the dose may be increased stepwise up to a maximum of 3600 mg each day and your doctor will tell you to take this in 3 divided doses, i.e. once in the morning, once in the afternoon and once in the evening.

Epilepsy:

Use in adults and adolescents:

Take the number of tablets as instructed. Your doctor will usually build up your dose gradually. The starting dose will generally be between 300 mg and 900 mg each day. Thereafter, the dose may be increased stepwise up to a maximum of 3600 mg each day and your doctor will tell you to take this in 3 divided doses, i.e. once in the morning, once in the afternoon and once in the evening.

Use in children aged 6 years and above:

The dose to be given to your child will be decided by your doctor as it is calculated against the child’s weight. The treatment is started with a low initial dose, which is gradually increased over a period of approximately 3 days.

The recommended dose to control epilepsy is 25-35 mg/kg/day. It is usually given in 3 divided doses, by taking the tablets each day, usually once in the morning, once in the afternoon and once in the evening.

Gabapentin is not recommended for use in children below 6 years of age.

Older patients

If you are an elderly patient (over 65 years of age), you should take this medicine normally except if you have problems with your kidneys.

If you have kidney problems or are receiving haemodialysis

Your doctor may prescribe a different dosing schedule and/or dose if you have problems with your kidneys or are undergoing haemodialysis.

Method and route of administration

Gabapentin Mylan is for oral use.

You should swallow the tablets whole with plenty of water. The tablet can be divided into equal doses.

This medicine may be taken with or without food.

Continue taking this medicine until your doctor tells you to stop.

If you take more Gabapentin Mylan than you should

If you or someone else accidentally takes too many tablets, or if you think a child has swallowed any, contact your doctor or go to your nearest hospital emergency department immediately. Take along any tablets that are left, the container and the label so that the hospital can easily tell what medicine you have taken. Signs of an overdose include dizziness, double vision, slurred speech, loss of consciousness, drowsiness and mild diarrhoea.

If you forget to take Gabapentin Mylan

If you forget to take a dose, take it as soon as you remember unless it is time for your next dose. Do not take a double dose to make up for a forgotten tablet.

If you stop taking Gabapentin Mylan

Do not suddenly stop taking gabapentin or reduce your dose. If you want to stop taking gabapentin or reduce your dose, discuss this with your doctor first. They will tell you how to do this, usually by reducing the dose gradually so that any unpleasant withdrawal effects are kept to a minimum. This may occur over a period of weeks to months. Your prescriber will ensure that your plan for stopping treatment is tailored to you and can be adapted according to your needs and experience of any withdrawal symptoms. Withdrawal symptoms such as trouble sleeping, headache, feeling sick (nausea), feeling anxious, diarrhoea, flu-like symptoms, convulsions, nervousness, depression, thoughts of harming or killing yourself, and dizziness . If you experience withdrawal effects, you should contact your doctor.

If you have any further questions on the use of this medicine, ask your doctor or pharmacist.

4. Possible side effects

Like all medicines, this medicine can cause side effects, although not everybody gets them.

Stop taking this medicine and contact your doctor immediately or go to the nearest hospital casualty department straight away if you experience any of the following signs after taking this medicine as they can be serious:

Common (may affect up to 1 in 10 people):

• serious chest infection which may cause fever, chills, shortness of breath, cough, phlegm and occasionally blood (pneumonia)
• fits (convulsions).

Rare (may affect up to 1 in 1,000 people):

• breathing problems – if these become severe you may need emergency and intensive care to continue breathing normally.

Not known (frequency cannot be estimated from the available data):

• anaphylaxis (serious, potentially life-threatening allergic reaction including difficulty breathing, swelling of the lips, throat, and tongue, and hypotension requiring emergency treatment)
• reddish non-elevated, target-like or circular patches on the trunk, often with central blisters, skin peeling, ulcers of mouth, throat, nose, genitals and eyes. These serious skin rashes can be preceded by fever and flu-like symptoms (Stevens-Johnson-syndrome, toxic epidermal necrolysis).
• widespread rash, high body temperature and enlarged lymph nodes (DRESS syndrome or drug hypersensitivity syndrome).
• severe skin reactions that require immediate attention such as swelling of the lips and face, skin rash and redness (these may be signs of a serious allergic reaction) • persistent stomach pain that spreads to the back, feeling sick and being sick as these may be signs of acute pancreatitis (an inflamed pancreas)
• a severe condition of the skin (Erythema multiforme) that may affect the mouth and other parts of the body signs include red, often itchy spots, similar to the rash of measles, which starts on the limbs and sometimes on the face and the rest of the body. The spots may blister or may progress to form raised, red, pale-centred marks. Those affected may have fever, sore throat, headache and/or diarrhoea.

• kidney disease leading to passing less urine than usual, feeling or being sick, or confused

  (acute kidney failure)

• destruction of muscle fibres associated with muscle cramps, muscle pain, fever and red-brown discoloration of the urine (rhabdomyolysis).

Gabapentin may cause a serious or life-threatening allergic reaction that may affect your skin or other parts of your body such as your liver or blood cells. You may or may not have rash when you get this type of reaction. It may cause you to be hospitalised or to stop this medicine.

Call your doctor right away if you have any of the following signs:

• skin rash
• itchy, lumpy, skin rash (hives)
• fever
• swollen glands that do not go away
• swelling of your lip and tongue
• yellowing of your skin or of the whites of the eyes
• unusual bruising or bleeding
• severe fatigue or weakness
• unexpected muscle pain
• frequent infections.

These signs may be the first signs of a serious reaction. A doctor should examine you to decide if you should continue taking this medicine.

Other possible side effects

Very common (may affect more than 1 in 10 people):

• viral infection
• feeling drowsy, dizziness, lack of coordination
• feeling tired.

Common (may affect up to 1 in 10 people):

• urinary tract infection, inflammation of the ear or other infections
• loss of appetite, increased appetite
• anger towards others, confusion, mood swings, depression, anxiety, nervousness, difficulty with thinking
• jerky movements, difficulty with speaking, loss of memory, shaking, difficulty sleeping, headache, numbness, tingling or pins and needles, decreased sensation, difficulty with coordination
• rapid unusual eye movement, increased, decreased or absent reflexes • blurred vision, double vision
• spinning sensation (vertigo)
• high blood pressure, flushing or dilation of blood vessels
• shortness of breath, chest infection (bronchitis), sore throat and discomfort when swallowing, cough, runny or blocked nose
• vomiting (being sick), nausea (feeling sick), problems with teeth, inflamed gums, diarrhoea, stomach pains, indigestion, constipation, dry mouth or throat, wind
• facial swelling, bruises, acne
• joint pain, muscle pain, back pain, twitching
• difficulty getting or maintaining an erection
• swelling in the legs and arms, difficulty with walking, pain, generally feeling unwell, flu-like symptoms
• increase in weight
• accidental injuries, such as broken bones, scratches or bruises.

Uncommon (may affect up to in 100 people):

• unusually reduced or slow body movement
• racing heartbeat
• swelling that may involve the trunk
• abnormal blood test results suggesting problems with the liver
• fall
• difficulty with thinking
• high blood sugar (most often observed in patients with diabetes)
• agitation (a state of chronic restlessness and unintentional and purposeless motions) • difficulty swallowing.

Rare (may affect up to 1 in 1,000 people):

• low blood sugar (most often observed in patients with diabetes
• loss of consciousness.
• trouble breathing, shallow breaths (respiratory depression).

Not known (frequency cannot be estimated from the available data):

• suicidal thoughts
• sensing things that are not real (hallucinations)
• problems with abnormal movements such as writhing, jerking movements and stiffness affecting the eyes, head, neck and body
• ringing in the ears
• hair loss
• problems with sexual functioning including changes in sex drive, inability to reach a sexual climax, delayed ejaculation
• uncontrolled passing of urine
• increased breast tissue, breast enlargement in males
• signs of withdrawal (anxiety, difficulty sleeping, feeling sick, pain, sweating), chest pain • change in blood test results (increase in creatine phosphokinase)
• low levels of sodium in the blood.

• Worsening of myasthenia gravis (a disease causing muscle weakness) • becoming dependent on gabapentin (dependence and addiction, see section “How do I know if

  I am tolerant or addicted?”))

Drug Withdrawal

When you stop taking Neurontin or after reducing your dose, you may experience drug withdrawal symptoms, which include trouble sleeping, headache, nausea, feeling anxious, diarrhoea, flu-like symptoms, convulsions, nervousness, depression, thoughts of harming or killing yourself, pain, sweating, and dizziness.

How do I know if I am tolerant or addicted?

If you notice any of the following signs whilst taking Neurontin, it could be a sign that you have become addicted.

• You may feel the need to keep taking the medication for longer than your doctor recommended
• You feel you need to use more than the recommended dose
• You are using the medicine for reasons other than prescribed
• When you stop taking the medicine you feel unwell, and you feel better once taking the medicine again

If you notice any of these signs, it is important you talk to your prescriber

Additional side effects in children

Aggressive behaviour was commonly reported.

Reporting of side effects

If you get any side effects, talk to your doctor, pharmacist or nurse. This includes any possible side effects not listed in this leaflet. You can also report side effects directly via the Yellow Card Scheme at: www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App Store.

By reporting side effects you can help provide more information on the safety of this medicine.

5. How to store Gabapentin Mylan

Keep this medicine out of the sight and reach of children.

Do not use this medicine after the expiry date which is stated on the carton after EXP. The expiry date refers to the last day of that month.

Do not store above 25°C.

Do not throw away any medicines via wastewater or household waste. Ask your pharmacist how to throw away medicines you no longer use. These measures will help protect the environment.

6. Contents of the pack and other information

What Gabapentin Mylan contains

-The active substance is gabapentin.

-Each tablet contains 600 mg gabapentin.

-The other ingredients are hydroxypropylcellulose, mannitol, poloxamer, crospovidone, talc, magnesium stearate

What Gabapentin Mylan look like and contents of the pack

Gabapentin Mylan 600 mg Tablets: White to off-white, oval, biconvex, uncoated, beveled edged tablets debossed with “MYLAN” on one side and “G” to the left of the score and “24” to the right of the score on the other side.

Packs of 20, 30, 45, 50, 90 and 100 tablets are packed in white opaque HDPE bottle with white opaque polypropylene (PP) cap containing desiccant (silica gel).

Packs of 20, 30, 45, 50, 60, 90, 100, 200, 250 and 500 are packed in OPA/Al/PVC blister.

Packs of 90 x 1 and 500 x 1 tablets are supplied as OPA/Al/PVC perforated unit dose blister.

Not all pack sizes may be marketed.

Marketing Authorisation Holder

Mylan, Potters Bar, Hertfordshire, EN6 1TL, United Kingdom

Manufacturers:

Gerard Laboratories, 35/36 Baldoyle Industrial Estate, Grange Road, Dublin 13, Ireland Mylan Hungary Kft, H-2900 Komárom, Mylan utca 1, Hungary

Viatris UK Healthcare Limited, Building 20, Station Close, Potters Bar, EN6 1TL, United Kingdom

This leaflet was last revised in December 2025