Valex 500 mg/5 ml IV Injection

Valex 500 mg/5 ml IV Injection Uses, Dosage, Side Effects, Food Interaction and all others data.

Valex 500 mg/5 ml IV Injection shows antiepileptic properties in various types of seizures. The exact mechanism of Valex 500 mg/5 ml IV Injection is not yet established. However it is suggested that its activity is related to increased brain levels of Gama Amino Butyric Acid (GABA).

Valex 500 mg/5 ml IV Injection
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	Valex 500 mg/5 ml IV Injection
Generic	Sodium Valproate
Weight	500 mg/5 ml
Type	IV Injection
Therapeutic Class	Primary anti-epileptic drugs
Manufacturer	Incepta Pharmaceuticals Ltd.
Available Country	Bangladesh
Last Updated:	September 24, 2024 at 5:38 am

Uses

Valex 500 mg/5 ml IV Injection 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

Valex 500 mg/5 ml IV Injection 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:

Valex 500 mg/5 ml IV Injection is for intravenous use only. Use of Valex 500 mg/5 ml IV Injection 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.

Valex 500 mg/5 ml IV Injection 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 Valex 500 mg/5 ml IV Injection (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

Valex 500 mg/5 ml IV Injection is a non specific inhibitor of drug metabolism. Phenobarbital, Phenytoin, Warfarin, Aspirin etc. interacts with Valex 500 mg/5 ml IV Injection.

Pregnancy & Breastfeeding use

Valex 500 mg/5 ml IV Injection crosses the placenta in humans which may lead to neural tube defects such as anencephaly and spina bifida if exposed in the first trimester. Valex 500 mg/5 ml IV Injection may excrete in breast milk. So treatment with Valex 500 mg/5 ml IV Injection may cause harm to new born baby.

Contraindication

Valex 500 mg/5 ml IV Injection is contra-indicated in patients with known hypersensitivity of Valex 500 mg/5 ml IV Injection, 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 Valex 500 mg/5 ml IV Injection used for?

Valex 500 mg/5 ml IV Injection 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 Valex 500 mg/5 ml IV Injection?

Many people can take Valex 500 mg/5 ml IV Injection safely for many months or years. However, there are potential side effects that can happen over a long time. Long-term treatment with Valex 500 mg/5 ml IV Injection can cause osteoporosis and osteopenia.

How long does it take for sodium valproate to work?

Valex 500 mg/5 ml IV Injection 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 Valex 500 mg/5 ml IV Injection?

The common side effects of Valex 500 mg/5 ml IV Injection 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 Valex 500 mg/5 ml IV Injection?

Valex 500 mg/5 ml IV Injection 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 Valex 500 mg/5 ml IV Injection?

You can take Valex 500 mg/5 ml IV Injection 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 Valex 500 mg/5 ml IV Injection?

If you're taking Valex 500 mg/5 ml IV Injection 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 Valex 500 mg/5 ml IV Injection 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 Valex 500 mg/5 ml IV Injection safe during pregnancy?

Valex 500 mg/5 ml IV Injection 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 Valex 500 mg/5 ml IV Injection prevention programme.

Is Valex 500 mg/5 ml IV Injection safe during breastfeeding?

If your doctor or health visitor says your baby is healthy you can take Valex 500 mg/5 ml IV Injection while breastfeeding.
Valex 500 mg/5 ml IV Injection 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 Valex 500 mg/5 ml IV Injection?

Once your condition is under control, you'll usually need to keep taking Valex 500 mg/5 ml IV Injection for many years.

Is Valex 500 mg/5 ml IV Injection safe to take it for a long time?

Many people can take Valex 500 mg/5 ml IV Injection safely for many months or years.
However, there are potential side effects that can happen over a long time. Long-term treatment with Valex 500 mg/5 ml IV Injection can cause osteoporosis and osteopenia.

What will happen when I come off Valex 500 mg/5 ml IV Injection?

Do not stop taking Valex 500 mg/5 ml IV Injection 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 Valex 500 mg/5 ml IV Injection 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 Valex 500 mg/5 ml IV Injection gradually.

Can I drink alcohol with Valex 500 mg/5 ml IV Injection?

Drinking alcohol while taking Valex 500 mg/5 ml IV Injection 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 Valex 500 mg/5 ml IV Injection affect my fertility?

Valex 500 mg/5 ml IV Injection can reduce fertility in both men and women. Once you stop taking this medicine, your fertility will return.In men Valex 500 mg/5 ml IV Injection has been reported to cause infertility.

Will Valex 500 mg/5 ml IV Injection affect my contraception?

Valex 500 mg/5 ml IV Injection 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 Valex 500 mg/5 ml IV Injection you must use contraception. Your doctor will put you on Prevent, the valproate pregnancy prevention programme.

Can I drive after taking Valex 500 mg/5 ml IV Injection?

You may feel sleepy, tired or dizzy when you first start taking Valex 500 mg/5 ml IV Injection. 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 Valex 500 mg/5 ml IV Injection?

Taking too much Valex 500 mg/5 ml IV Injection can lead to symptoms such as: feeling or being sick, headaches or feeling dizzy,muscle weakness.

What happen If I missed Valex 500 mg/5 ml IV Injection?

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 Valex 500 mg/5 ml IV Injection once a day ,take the forgotten dose as soon as you remember unless it's within a few hours of the next dose.