Deston 8 mg/4 ml Injection contains the active ingredient Ondansetron, a 5‑HT3 receptor antagonist anti‑emetic used to prevent and treat nausea and vomiting associated with medical treatments and conditions. It is commonly administered intravenously (IV) or intramuscularly (IM) by a healthcare professional, especially when oral medication is not suitable. Ondansetron works by blocking serotonin signals in the brain and gastrointestinal tract that trigger the vomiting reflex, providing rapid relief from nausea and preventing fluid loss and discomfort.

Price in Pakistan:

• Approx. PKR 200 – PKR 300 per 8 mg/4 ml ampoule depending on brand and pharmacy.

Uses:

• Prevents and treats nausea and vomiting caused by chemotherapy and radiotherapy

• Manages post‑operative (after surgery) nausea and vomiting

• Helps control vomiting in gastroenteritis and other acute illnesses

• Used when oral anti‑nausea medicines are unsuitable

Benefits:

• Fast‑acting relief from nausea and vomiting

• Helps reduce risk of dehydration from severe vomiting

• Improves patient comfort during medical treatments

• Can be used in hospital settings when oral intake isn’t possible

• Suitable for adults and children under medical supervision

Prescription Required: Yes

Generic Name: Ondansetron

Use: Antiemetic (prevents nausea & vomiting)

How It Works:

Ondansetron blocks serotonin (5‑HT3) receptors in the central nervous system and gastrointestinal tract that trigger vomiting. By preventing serotonin from activating these receptors, the injection helps suppress the reflex that leads to nausea and vomiting.

Dosage:

• The injection is given by a doctor or nurse — dosage depends on the cause and patient condition.

• Often a single 8 mg dose is given slowly via IV or IM before/after surgery or chemotherapy sessions.

• In chemotherapy settings, repeat dosing may be scheduled as per doctor instructions.

• Follow healthcare provider guidance strictly and do not self‑administer.

Common Side Effects:

• Headache

• Constipation or diarrhea

• Dizziness

• Fatigue or drowsiness

• Injection site pain or irritation

Drug Interactions:

• Inform your doctor about other medicines — some heart or antidepressant drugs can interact and affect heart rhythm.

• Used cautiously with other serotonin‑modulating drugs.

Do Not Use If:

• Known allergy to ondansetron or similar medicines

• History of abnormal heart rhythm (QT prolongation) without medical advice

• Severe liver impairment without doctor supervision

Storage:

Store in a cool, dry place below 30 °C, away from direct sunlight. Keep out of reach of children.

FAQs

Q1: What is Deston 8 mg/4 ml Injection used for?

It is used to prevent and treat nausea and vomiting caused by chemotherapy, radiotherapy, and surgery.

Q2: How quickly does it work?

The effect usually begins within 30–60 minutes after administration.

Q3: Can it be taken at home?

No, it must be given by a healthcare professional.

Q4: Does it help with morning sickness?

It may be used in selected cases under doctor supervision.

Q5: Is a prescription required?

Yes, a doctor’s order is needed.

Q6: Can it cause dizziness?

Yes, dizziness and headache are common side effects.

Q7: Is it safe for children?

It can be used in children under medical guidance.

Q8: Can it be given during surgery?

Yes, it is often used to prevent post‑operative nausea and vomiting.