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Ondansetron acts by reducing the release of certain chemical messengers that cause nausea thereby relieving the patient.

Onset 8mg is available on, an online pharmacy in Pakistan that provides the convenience of ordering online medicines with the ease of getting them delivered to your doorstep.

Swallow the tablet as whole with a glass of water before or after a meal.

Patients using phenytoin, rifampicin, carbamazipine, and tramadol should consult their doctor before using Onset.

  • Onset should be used with extreme caution in patients with hepatic impairment and intestinal obstruction.
  • Ondansteron can be used by pregnant and lactating mothers.
  • Patients using this medication may at times experience headache, flushing, constipation, decreased heart rate, decreased blood pressure, chest pain, seizures, and visual disturbances.

Store the medication at room temperature.

Onset is primarily indicated in nausea and vomiting caused by chemotherapy and radiotherapy. It is also used to avoid post-operative nausea and vomiting.


Dawaai's intention is to make sure that it's consumers get information that is accurate, reviewed by an expert and error-free. However, the information mentioned here should not be used as a replacement for the advice of a qualified physician. The information given here is for informational purposes only, which may not cover all possible precautions, side effects, contraindications or drug interactions. Consult your doctor and discuss your queries related to any medicine or disease.


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