Ask your doctor for advice if you are to stop taking this medicine. You may get drowsy, dizzy, or have blurred vision. Do not drive, use machinery, or do anything that needs mental alertness until you know how thiethylperazine affects you. Do not stand or sit up quickly, especially if you are an older patient. This reduces the risk of dizzy or fainting spells.
Alcohol can increase possible dizziness or drowsiness.
Avoid alcoholic drinks. Thiethylperazine can reduce the response of your body to heat or cold. Try not to get overheated. Avoid temperature extremes, such as saunas, hot tubs, or very hot or cold baths or showers. Dress warmly in cold weather.