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Onkro Injection is used to prevent and treat nausea and vomiting during chemotherapy. Nausea is an uneasy feeling in which a person feels an urge to vomit, while vomiting is the natural response of the body to expel the stomach contents from the mouth forcefully.
Onkro Injection contains Ondansetron, which works by blocking the action of a chemical in the body (serotonin) responsible for causing nausea and vomiting.
In some cases, Onkro Injection may cause headache, constipation, a feeling of warmth or flushing, redness, and irritation at the site of injection. If the side effects persist or worsen, please consult your doctor.
If you are allergic to Onkro Injection or any other medicines, please tell your doctor. It should be given to children only in doses advised by the doctor based on the child’s body weight or body surface area. If you are pregnant or breastfeeding, you must inform your doctor before taking Onkro Injection.
Onkro Injection is used to prevent and treat nausea and vomiting caused by various medical conditions. The detailed uses of Onkro Injection are as follows:
Unsafe
Avoid consuming alcohol while taking Onkro Injection as this medicine can interact with alcohol and may worsen the side effects.
Consult your doctor
If you are pregnant, inform your doctor before taking Onkro Injection. Your doctor will weigh the benefits and risks before prescribing this medicine.
Consult your doctor
If you are a nursing mother, inform your doctor before taking Onkro Injection. Your doctor will weigh the benefits and risks before prescribing this medicine.
Caution
Onkro Injection usually does not affect your driving ability. However, do not drive if you feel any discomfort.
Caution
Take Onkro Injection with caution, especially if you have a history of Liver diseases/conditions. The dose may be adjusted by your doctor as required.
Safe if prescribed
Onkro Injection may be safe to use in patients with kidney problems if prescribed by a doctor.
Consult your doctor
Onkro Injection should be used in children only in doses advised by the doctor based on child’s body weight or body surface area.
Caution
Onkro Injection may be used in heart patients but requires caution due to risk of QT prolongation. ECG monitoring is advised to prevent serious arrhythmias, especially in those with existing cardiac conditions.
Caution
Onkro Injection can be used in geriatric patients, but with caution. Older adults may be more sensitive to side effects like QT prolongation, so ECG monitoring is often recommended during treatment.

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Onkro Injection belongs to a class of drugs called antiemetics used to prevent nausea and vomiting during chemotherapy.
Onkro Injection works by blocking the action of serotonin, a chemical that stimulates the vomiting center (chemoreceptor trigger zone – CTZ) located in the brain. Thus, it prevents nausea and vomiting.
You are not recommended to take erythromycin with Onkro Injection as it may increase the risk of severe irregular heart rhythm. However, please consult your doctor before taking other medicines with Onkro Injection.
Onkro Injection may cause constipation as a side effect. It is not necessary for everyone taking Onkro Injection to experience this side effect. However, if the condition persists or worsens, please consult a doctor.
Onkro Injection should be used with caution in patients suffering from liver problems. However, inform your doctor if you have any liver problems before taking Onkro Injection so that the dose may be adjusted appropriately.
Yes, Onkro Injection may be used to prevent nausea and vomiting after surgery. Onkro Injection blocks serotonin (a chemical) action which is responsible for causing nausea and vomiting.
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