Vomistrip 2 mg oral disintegrating strips contain the active ingredient ondansetron. It is an antiemetic that belongs to the group of medications called selective 5-HT3 antagonists. It treats nausea and vomiting caused by medical treatments such as cancer chemotherapy or radiotherapy and surgery. Do not take this medicine if you are allergic to ondansetron or any of the other ingredients of this medicine. Do not take this medicine if you have ever had any allergic reaction with other anti-emetics and if you are taking apomorphine (a medicine used to treat Parkinson’s disease). Inform your physician if you have any blockage in your gut or suffer from severe constipation and if you are due for surgery on the adenoids or tonsils. Tell your doctor if you have heart problems, liver problems, Parkinson’s disease, and any problems with the levels of salts in your blood, such as potassium, magnesium, and sodium. Do not take Vomistrip 2 mg oral disintegrating strips if you are pregnant because this medicine can cause severe birth defects. Inform your physician or other healthcare professionals if you are pregnant, breastfeeding, or planning to get pregnant during the treatment. The most common side effects of this medicine are headache, general weakness or tiredness, constipation, and diarrhea.