Valporin CR Tablet (Controlled Release) 500 mg

Valporin CR Tablet (Controlled Release) 500 mg Uses, Dosage, Side Effects, Food Interaction and all others data.

Valporin CR Tablet (Controlled Release) 500 mg shows antiepileptic properties in various types of seizures. The exact mechanism of Valporin CR Tablet (Controlled Release) 500 mg is not yet established. However it is suggested that its activity is related to increased brain levels of Gama Amino Butyric Acid (GABA).

Valporin CR Tablet (Controlled Release) 500 mg
Uses
Dosage
Side Effect
Precautions
Interactions
Uses during Pregnancy
Uses during Breastfeeding
Accute Overdose
Food Interaction
Half Life
Volume of Distribution
Clearance
Interaction With other Medicine
Contradiction
Storage

Trade Name	Valporin CR Tablet (Controlled Release) 500 mg
Generic	Sodium Valproate
Weight	500 mg
Type	Tablet (Controlled Release)
Therapeutic Class	Primary anti-epileptic drugs
Manufacturer	Renata Limited
Available Country	Bangladesh
Last Updated:	October 19, 2023 at 6:27 am

Uses

Valporin CR Tablet (Controlled Release) 500 mg is used for -

Epilepsy: All types of epilepsy such as Absence seizure, Myoclonic seizure, Tonic-clonic seizure, Atonic, Mixed, simple or generalized, Secondary generalized seizure etc.
Mania: For the treatment of manic episodes of bipolar disorders.
Other: As an alternative treatment for febrile convulsion & migraine prophylaxis.

Dosage

Valporin CR Tablet (Controlled Release) 500 mg dosage

Oral:

Adults:

Initial: 600 mg/day in 2 divided doses, preferably after food. Dose may be increased by 200mg/day at 3 days interval to a maximum of 2.5 gm daily in divided doses until control of seizure is achieved.
Maintenance dose: Usually 1-2 gm daily (20-30 mg/kg daily).

Children (up to 20 kg):

Initial: 20 mg/kg daily in divided doses. Dose may be increased in severe cases with proper monitoring of plasma concentration.

Children (over 20 kg):

Initial: 400 mg/ day (irrespective of weight). Dose may be increased by 20-30 mg/ kg if required to achieve control.

Injection:

Valporin CR Tablet (Controlled Release) 500 mg is for intravenous use only. Use of Valporin CR Tablet (Controlled Release) 500 mg for periods of more than 14 days has not been studied. Patients should be switched to oral valproate products as soon as it is clinically feasible.

Valporin CR Tablet (Controlled Release) 500 mg should be administered as a 60 minute infusion (but not more than 20 mg/min) with the same frequency as the oral products, although plasma concentration monitoring and dosage adjustments may be necessary.

In one clinical safety study, approximately 90 patients withepilepsyand with no measurable plasma levels of valproate were given single infusions of Valporin CR Tablet (Controlled Release) 500 mg (up to 15 mg/kg and mean dose of 1184 mg) over 5-10 minutes (1.5-3.0 mg/kg/min). Patients generally tolerated the more rapid infusions well. This study was not designed to assess the effectiveness of these regimens.

Side Effects

Gastric irritation, nausea, ataxia & tremor; hyperammonaemia, increased appetite & weight gain; transient hair loss, oedema, thrombocytopenia, and inhibition of platelet aggregation, impaired hepatic function leading rarely to fetal hepatic failure; rashes; sedation; rarely lethargy and confusion and also increased alertness; rarely pancreatitis, leucopenia, pancytopenia, red cell hypoplasia, fibrinogen reduction; irregular periods, amenorrhoea, gynaecomastia, toxic epidermal necrolysis, hearing loss, Fancoli's syndrome, dementia, Steven's-Johnson syndrome, and vasculitis have also been reported.

Precaution

Liver function should be monitored before therapy and during first six months, especially in those patients who seem most at risk. Blood tests are recommended before surgery. Renal impaired patients, pregnant and brest feeding mother should be specially cared. Valproate is eliminated mainly through the kidney, partly in the form of ketone bodies which may lead to false statement in urine ketone test. Sudden withdrawal of therapy should be avoided

Interaction

Valporin CR Tablet (Controlled Release) 500 mg is a non specific inhibitor of drug metabolism. Phenobarbital, Phenytoin, Warfarin, Aspirin etc. interacts with Valporin CR Tablet (Controlled Release) 500 mg.

Pregnancy & Breastfeeding use

Valporin CR Tablet (Controlled Release) 500 mg crosses the placenta in humans which may lead to neural tube defects such as anencephaly and spina bifida if exposed in the first trimester. Valporin CR Tablet (Controlled Release) 500 mg may excrete in breast milk. So treatment with Valporin CR Tablet (Controlled Release) 500 mg may cause harm to new born baby.

Contraindication

Valporin CR Tablet (Controlled Release) 500 mg is contra-indicated in patients with known hypersensitivity of Valporin CR Tablet (Controlled Release) 500 mg, personal or family history of severe active liver disease, hepatic dysfunction, porphyria and known urea cycle disorder.

Storage Condition

Syrup: Store below 30° C, protected from light.

Tablet: Store below 30° C, protected from light. Keep all medicines out of the reach of children.

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FAQ

What is Valporin CR Tablet (Controlled Release) 500 mg used for?

Valporin CR Tablet (Controlled Release) 500 mg used to treat epilepsy and bipolar disorder. It's occasionally used to prevent migraine headaches. This medicine is only available on prescription.

How safe is Valporin CR Tablet (Controlled Release) 500 mg?

Many people can take Valporin CR Tablet (Controlled Release) 500 mg safely for many months or years. However, there are potential side effects that can happen over a long time. Long-term treatment with Valporin CR Tablet (Controlled Release) 500 mg can cause osteoporosis and osteopenia.

How long does it take for sodium valproate to work?

Valporin CR Tablet (Controlled Release) 500 mg may take several days to show an initial effect and in some cases may take from two to six weeks for maximum effect. Treatment is started with low doses and may be increased over a couple of weeks according to your child's response.

What are the common side effects of Valporin CR Tablet (Controlled Release) 500 mg?

The common side effects of Valporin CR Tablet (Controlled Release) 500 mg are include:

stomach pain, feeling or being sick
diarrhoea
dry or sore mouth, or swollen gums
shakes (tremors) in a part of your body, or unusual eye movements
feeling tired or sleepy
headache
weight gain
thinning hair, or changes to the colour or texture of your hair
irregular or delayed periods

How to take Valporin CR Tablet (Controlled Release) 500 mg?

Valporin CR Tablet (Controlled Release) 500 mg comes as slow release (prolonged or sustained release) tablets, capsules and granules, gastro-resistant tablets, crushable tablets, and as a liquid.
Slow release medicine passes into your body gradually.

When is the best time to take Valporin CR Tablet (Controlled Release) 500 mg?

You can take Valporin CR Tablet (Controlled Release) 500 mg with or without food, but it's best to stick to the same way each time. Do not take it with food some days and without food on other days.

How often can I take Valporin CR Tablet (Controlled Release) 500 mg?

If you're taking Valporin CR Tablet (Controlled Release) 500 mg once a day, you can choose a time that suits you. Just try to keep to the same time every day.
If you're taking Valporin CR Tablet (Controlled Release) 500 mg twice a day, try to leave a gap of 10 to 12 hours between doses. For example you could take your first dose in the morning (between 7am and 8am) and your second dose in the evening (between 7pm and 8pm).

Is Valporin CR Tablet (Controlled Release) 500 mg safe during pregnancy?

Valporin CR Tablet (Controlled Release) 500 mg is not recommended in pregnancy, as it can cause birth defects and problems with your baby's learning and behaviour.
If there's a chance you could become pregnant while taking this medicine, your doctor will put you on Prevent, the Valporin CR Tablet (Controlled Release) 500 mg prevention programme.

Is Valporin CR Tablet (Controlled Release) 500 mg safe during breastfeeding?

If your doctor or health visitor says your baby is healthy you can take Valporin CR Tablet (Controlled Release) 500 mg while breastfeeding.
Valporin CR Tablet (Controlled Release) 500 mg passes into breast milk in small amounts but it's unlikely to harm your baby so you can continue breastfeeding if your doctor says you need to take it.

How long will I take Valporin CR Tablet (Controlled Release) 500 mg?

Once your condition is under control, you'll usually need to keep taking Valporin CR Tablet (Controlled Release) 500 mg for many years.

Is Valporin CR Tablet (Controlled Release) 500 mg safe to take it for a long time?

Many people can take Valporin CR Tablet (Controlled Release) 500 mg safely for many months or years.
However, there are potential side effects that can happen over a long time. Long-term treatment with Valporin CR Tablet (Controlled Release) 500 mg can cause osteoporosis and osteopenia.

What will happen when I come off Valporin CR Tablet (Controlled Release) 500 mg?

Do not stop taking Valporin CR Tablet (Controlled Release) 500 mg suddenly, unless your doctor tells you to.
You're unlikely to get any extra symptoms when you stop taking this medicine. However, if you're taking Valporin CR Tablet (Controlled Release) 500 mg for epilepsy, it's possible that you'll get seizures again once you stop taking it. You can prevent these withdrawal seizures by reducing your dose of Valporin CR Tablet (Controlled Release) 500 mg gradually.

Can I drink alcohol with Valporin CR Tablet (Controlled Release) 500 mg?

Drinking alcohol while taking Valporin CR Tablet (Controlled Release) 500 mg may make you feel sleepy or tired. It's best to stop drinking alcohol during the first few days, until you see how the medicine affects you.

Will Valporin CR Tablet (Controlled Release) 500 mg affect my fertility?

Valporin CR Tablet (Controlled Release) 500 mg can reduce fertility in both men and women. Once you stop taking this medicine, your fertility will return.In men Valporin CR Tablet (Controlled Release) 500 mg has been reported to cause infertility.

Will Valporin CR Tablet (Controlled Release) 500 mg affect my contraception?

Valporin CR Tablet (Controlled Release) 500 mg does not affect any type of contraception, including the combined pill and emergency contraception.If there's a chance you could become pregnant while taking Valporin CR Tablet (Controlled Release) 500 mg you must use contraception. Your doctor will put you on Prevent, the valproate pregnancy prevention programme.

Can I drive after taking Valporin CR Tablet (Controlled Release) 500 mg?

You may feel sleepy, tired or dizzy when you first start taking Valporin CR Tablet (Controlled Release) 500 mg. This may also happen if your dose has increased. If you're affected, do not drive or ride a bike until you feel more alert.

Can I take too much dose of Valporin CR Tablet (Controlled Release) 500 mg?

Taking too much Valporin CR Tablet (Controlled Release) 500 mg can lead to symptoms such as: feeling or being sick, headaches or feeling dizzy,muscle weakness.

What happen If I missed Valporin CR Tablet (Controlled Release) 500 mg?

If you've missed a dose, what you do next depends on whether you usually take your medicine once or twice a day. If you take Valporin CR Tablet (Controlled Release) 500 mg once a day ,take the forgotten dose as soon as you remember unless it's within a few hours of the next dose.