Nerviaux 300mg/500mcg Tablet 10s

Nerviaux 300mg/500mcg Tablet 10s is used for long-lasting nerve pain. This kind of pain comes from damaged or irritated nerves rather than from injured muscles or joints. People often describe it as burning, stabbing, electric-shock, or pins-and-needles pain. It is common in people with diabetes, after shingles, and with some other nerve problems.

The gabapentin part is an anticonvulsant, which means a medicine first developed to control seizures (fits). It works on overactive nerves. It cuts down the release of chemical messengers that carry pain signals, so damaged nerves "fire" less often and pain feels less intense. Gabapentin is not broken down by the liver. It leaves the body unchanged through the kidneys, so kidney health affects how much of it builds up in the body.

The methylcobalamin part is a form of vitamin B12 that the body can use directly. Vitamin B12 helps keep nerves healthy and helps build myelin, the protective coating around nerve fibres. People with diabetes who take metformin for a long time, and people who eat little or no animal food, can have low vitamin B12 levels. Low B12 can itself cause nerve damage.

Combining both ingredients means taking fewer separate pills. This can make it easier to stick with the treatment day after day.

Nerviaux 300mg/500mcg Tablet 10s should only be taken under a doctor's care. Gabapentin can cause sleepiness and dizziness. In rare cases it can cause serious allergic reactions, slowed breathing, or changes in mood, including thoughts of self-harm. It can also be misused, and stopping it suddenly can cause withdrawal symptoms. Your doctor will usually start with a low dose, choose the dose based on how well your kidneys work, and check how you are doing over time.

• Relief from nerve pain - The gabapentin part calms overactive nerves, which can ease burning, shooting, and tingling pain.
• Nerve support - Methylcobalamin is an active form of vitamin B12, which nerves need to stay healthy. It is most likely to help people whose vitamin B12 levels are low.
• Helps when B12 is low - People on long-term metformin or acid-reducing medicines, and people on vegetarian diets, can run low on vitamin B12. The methylcobalamin part helps top up B12.
• Better sleep for some people - Nerve pain often gets worse at night. Easing it may help some people sleep better.
• Fewer pills to take - Two ingredients in one tablet can make the daily routine simpler.
• No liver breakdown needed - Gabapentin leaves the body through the kidneys without being broken down by the liver. This lowers the chance of some drug interactions.

Common Side Effects (Usually Mild)

These may lessen with continued use.

• Feeling sleepy, tired, or drowsy
• Dizziness or feeling unsteady on your feet
• Blurred or double vision
• Swelling of the hands, ankles, or feet
• Weight gain
• Dry mouth
• Constipation, nausea, or upset stomach
• Headache
• Trouble remembering things or concentrating
• Mild stomach upset from methylcobalamin, which is uncommon

Serious Side Effects (Seek Urgent Medical Attention)

• Serious allergic reaction (anaphylaxis or angioedema) - swelling of the face, lips, tongue, or throat, trouble breathing, or a widespread rash.
• DRESS (Drug Reaction with Eosinophilia and Systemic Symptoms) - a rare but serious whole-body allergic reaction. Signs include fever, rash, swollen glands, yellow skin or eyes, and unusual tiredness. It can damage organs such as the liver or kidneys.
• Breathing problems (respiratory depression) - slow, shallow, or weak breathing, or bluish lips. The risk is higher when Nerviaux 300mg/500mcg Tablet 10s is taken with opioid painkillers, sleeping pills, or alcohol, and in older adults or people with lung disease.
• Thoughts of suicide or self-harm, new or worsening depression, anxiety, agitation, or unusual changes in mood or behaviour.
• Extreme sleepiness or confusion.
• Unexplained muscle pain, tenderness, or weakness.

• Take Nerviaux 300mg/500mcg Tablet 10s exactly as your doctor has prescribed. Do not take more of it, or take it more often, than advised.
• Swallow the tablet or capsule whole with a glass of plain water. Do not crush, chew, or break it unless your doctor or pharmacist says it is safe.
• You can take Nerviaux 300mg/500mcg Tablet 10s with or without food. Pick one way and stick to it every day.
• Doctors often suggest the first doses at bedtime, because gabapentin can make you sleepy or dizzy.
• If you take more than one dose a day, space the doses evenly and take them at the same times each day.
• If you use an antacid that contains aluminium or magnesium, take Nerviaux 300mg/500mcg Tablet 10s at least 2 hours after the antacid.
• Keep taking Nerviaux 300mg/500mcg Tablet 10s even if you feel better. Do not stop it suddenly. Your doctor will lower the dose slowly when it is time to stop.

Gabapentin: Nerve cells pass signals to each other by releasing chemical messengers. Calcium has to flow into the nerve ending through small doorways called calcium channels before these messengers can be released. Gabapentin attaches to a part of these channels called the alpha-2-delta subunit, which you can think of as a helper piece on the doorway. This means less calcium enters, so the nerve releases fewer "excitatory" messengers, such as glutamate, that carry pain signals. When nerves are damaged, they tend to send too many pain signals. Gabapentin quiets this extra activity. Although gabapentin is built to look like GABA, a natural calming chemical in the brain, it does not work directly on GABA receptors.

Methylcobalamin: Methylcobalamin is one of the active forms of vitamin B12. The body uses it as a helper for an enzyme called methionine synthase, which is part of how the body makes building blocks for DNA and keeps nerves healthy. Vitamin B12 is needed to build and maintain myelin, the fatty coating that protects nerve fibres and helps signals travel properly. When B12 is low, nerves can be damaged, causing numbness and tingling.

Together: Gabapentin eases pain by calming overactive nerves, and methylcobalamin supplies vitamin B12 that nerves need for healthy function.

• Take Nerviaux 300mg/500mcg Tablet 10s at the same times each day so the level in your body stays steady.
• If it makes you drowsy, ask your doctor whether you can take it at bedtime.
• Keep at least 2 hours between antacids and Nerviaux 300mg/500mcg Tablet 10s.
• Avoid alcohol while taking this medicine.
• Tell family members to watch for changes in your mood or behaviour and to let your doctor know.
• Do not stop taking it suddenly, even if your pain improves.
• Tell every doctor and dentist you see that you take Nerviaux 300mg/500mcg Tablet 10s, especially before you are given any painkiller or sedative.
• Pain relief may build up slowly. Keep your follow-up appointments so your doctor can check your progress.

• Store below 30°C (86°F), or as stated on the pack, in a cool, dry place.
• Keep it in the original pack to protect it from light and moisture. Methylcobalamin breaks down in light.
• Do not store it in the bathroom or anywhere damp.
• Keep it out of sight and reach of children and pets.
• Do not use it after the expiry date. Ask your pharmacist how to throw away unused medicine safely.

• Food in general: Nerviaux 300mg/500mcg Tablet 10s can be taken with or without meals. Taking it the same way each day keeps its effect steady.
• Alcohol: Alcohol adds to the sleepiness and dizziness caused by gabapentin and can raise the risk of slowed breathing. Avoid it.
• Antacids: Antacids that contain aluminium or magnesium lower how much gabapentin the body absorbs. Take Nerviaux 300mg/500mcg Tablet 10s at least 2 hours after them.
• Diet and vitamin B12: Vitamin B12 is found naturally in animal foods such as milk, curd, eggs, fish, and meat. People on strict vegetarian or vegan diets are more likely to have low B12. Tell your doctor about your diet.

• Opioid painkillers (such as morphine, tramadol, codeine): Taking these with gabapentin can cause serious sleepiness and slowed breathing. Morphine can also raise gabapentin levels in the blood.
• Sedatives and sleeping pills (such as alprazolam, clonazepam, diazepam, zolpidem): These add to drowsiness and raise the risk of breathing problems.
• Other medicines that cause drowsiness (such as some antihistamines, antidepressants, and antipsychotics): These can increase sleepiness and dizziness.
• Antacids with aluminium or magnesium: These lower gabapentin absorption. Keep a gap of at least 2 hours.
• Metformin: Long-term use can lower vitamin B12 levels in the body.
• Acid-reducing medicines (such as omeprazole, pantoprazole, famotidine): These can lower how well vitamin B12 from food is absorbed.
• Chloramphenicol: This antibiotic may interfere with how the body responds to vitamin B12.

Always tell your doctor and pharmacist about every medicine, supplement, and herbal product you take.

• Kidney disease: Gabapentin can build up in the body, so a lower dose is usually needed.
• Lung or breathing problems (such as COPD, or chronic obstructive pulmonary disease, a long-term lung disease that makes it hard to breathe): The risk of slowed or weak breathing is higher.
• Depression or past thoughts of self-harm: Gabapentin may worsen mood or bring on suicidal thoughts in some people. Close follow-up is needed.
• History of drug or alcohol misuse: Gabapentin can be misused, and people with this history may be at higher risk.
• Epilepsy (fits): Stopping gabapentin suddenly can trigger seizures.
• Past allergic reaction to gabapentin or vitamin B12: Nerviaux 300mg/500mcg Tablet 10s should not be used.
• Older age with a tendency to fall: Dizziness and sleepiness can raise the risk of falls.

Nerviaux 300mg/500mcg Tablet 10s comes in different strengths. For nerve pain, gabapentin is usually started at a low dose, often once a day at bedtime. It is then raised step by step, usually to a total of 900 to 1800 mg a day split into three doses. Higher doses have not been shown to give extra relief for pain after shingles. People with kidney disease need lower doses, which their doctor will set based on kidney function tests. Your doctor will choose the strength, how many times a day to take it, and how long to take it. This depends on your condition, your age, how well your kidneys work, and how you respond. Some people stay on a low dose once a day at bedtime, while others need it up to three times a day. Never take more than prescribed, never change the dose on your own, and do not stop it suddenly.

Taking too much Nerviaux 300mg/500mcg Tablet 10s mainly causes symptoms from the gabapentin part. These can include:

• Severe drowsiness or difficulty staying awake
• Double vision
• Slurred speech
• Severe dizziness or loss of balance
• Diarrhoea
• Slow or shallow breathing, especially when taken with alcohol, opioids, or sedatives

If you think someone has taken too much, get emergency medical help straight away and take the medicine pack with you. Hospital staff will treat the symptoms and support breathing. In some cases, dialysis (a machine that filters the blood) can be used to remove gabapentin from the body. Vitamin B12 has low toxicity even in large amounts.

• Take the missed dose as soon as you remember.
• If it is nearly time for your next dose, skip the missed dose and take the next one at the usual time.
• Never take two doses together to make up for a missed one.
• If you often forget doses, set a phone alarm or link the dose to a daily habit such as brushing your teeth at night.

Get medical help right away if you notice:

• Swelling of the face, lips, tongue, or throat, or trouble breathing
• Slow, shallow, or weak breathing, or bluish lips or skin
• Fever with rash, swollen glands, or yellowing of the skin or eyes
• Thoughts of harming yourself, or new or worse depression, anxiety, or agitation
• Extreme sleepiness, confusion, or trouble waking up
• A seizure (fit)
• Unexplained muscle pain or weakness
• Severe dizziness that causes falls