Phenobarbital Sodium 200mg/1ml Injection In Pakistan

Phenobarbital Sodium 200mg/1ml Injection is an anticonvulsant medicine containing Phenobarbital Sodium 200mg in each 1ml. It belongs to the barbiturate class of medicines and works by reducing excessive electrical activity in the brain. It is primarily used under medical supervision for the management of seizures and certain forms of epilepsy.

Composition

Each 1ml of Phenobarbital Sodium Injection contains:

• Phenobarbital Sodium BP – 200mg

• Pharmaceutical excipients may vary according to the manufacturer.

The injection is supplied as a clear solution for injection.

Therapeutic Uses

Phenobarbital Sodium Injection may be used by qualified healthcare professionals for:

• Management of certain types of epilepsy

• Control of acute convulsive seizures

• Second-line treatment of convulsive status epilepticus in appropriate clinical settings

• Anticonvulsant therapy when injectable treatment is required

Phenobarbital is not generally indicated for typical absence seizures.

How Phenobarbital Works

Phenobarbital is a central nervous system depressant with anticonvulsant activity. It helps reduce abnormal neuronal activity in the brain, thereby helping to prevent or control seizures. It also has sedative effects.

Route of Administration

Phenobarbital Sodium Injection may be administered by intramuscular (IM) or slow intravenous (IV) routes depending on the specific product and clinical indication.

IV administration requires careful medical supervision because rapid administration can cause serious respiratory and cardiovascular effects. The exact route, dilution and administration rate must follow the product's approved prescribing information and healthcare professional instructions.

Dosage

The appropriate dose of Phenobarbital Sodium Injection depends on the patient's age, body weight, medical condition, seizure type and clinical response. Dosing should be determined by a qualified healthcare professional.

For acute seizures, injectable phenobarbital may be administered according to hospital protocols and the specific product's prescribing information. It should not be self-administered or used without medical supervision.

Important Safety Information

Phenobarbital can cause drowsiness, dizziness and respiratory depression, particularly with excessive doses or rapid intravenous administration. Blood pressure, breathing and other vital signs may require monitoring during parenteral administration.

Contraindications

Phenobarbital Sodium may be contraindicated in patients with:

• Known hypersensitivity to phenobarbital or other barbiturates

• Severe respiratory depression

• Severe hepatic or renal impairment

• Acute intermittent porphyria

• Certain other conditions specified in the approved product information

The prescribing information for the particular brand should always be checked before administration.

Possible Side Effects

Possible adverse effects may include:

• Drowsiness

• Sedation

• Dizziness

• Headache

• Nausea

• Respiratory depression

• Low blood pressure

• Apnoea, particularly following rapid IV administration or excessive doses

• Allergic or serious skin reactions in rare cases

Seek immediate medical attention for difficulty breathing, severe allergic reactions, loss of consciousness, or serious skin reactions.

Drug Interactions

Phenobarbital can interact with a wide range of medicines because it affects liver drug-metabolizing enzymes. Patients should inform their doctor about all prescription medicines, over-the-counter medicines and supplements they are taking before treatment.

Particular caution may be required when it is combined with other medicines that cause sedation or respiratory depression.

Pregnancy and Breastfeeding

Phenobarbital can cross the placenta and may affect pregnancy and the newborn. Pregnant or breastfeeding patients should use this medicine only after consultation with their healthcare professional, who can assess the potential benefits and risks.

Storage

Store Phenobarbital Sodium Injection according to the manufacturer's storage instructions printed on the package. Keep it away from children and do not use the product after its expiry date.

Important Notice

Phenobarbital Sodium 200mg/1ml Injection is a prescription medicine and should only be administered by or under the supervision of a qualified healthcare professional. Do not use this injection for self-treatment or change the dose without medical advice.

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