It is best to use birth control while being treated with thiotepa. Tell your doctor right away if you or your partner becomes pregnant. Do not breast feed during treatment. Tell doctors or dentists that you are being treated with thiotepa before you receive any treatment from them. It is more common with higher doses.
Most people have little or no nausea.
You may be given an antinausea drug with your treatment and a prescription to take at home. It is easier to prevent nausea than treat it once it has occurred. Follow antinausea drug directions closely. Drink plenty of liquids. Eat often in small amounts.