Drug information provided by: Micromedex
If you are taking diphenidol to prevent nausea and vomiting, it may be taken with food or a glass of water or milk to lessen stomach irritation, unless otherwise directed by your doctor. However, if you are already suffering from nausea and vomiting, it is best to keep the stomach empty, and this medicine should be taken only with a small amount of water.
Take this medicine only as directed. Do not take more of it and do not take it more often than directed by your doctor. To do so may increase the chance of side effects.
The dose of this medicine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so.
The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.
For oral dosage form (tablets):
Adults: 25 to 50 milligrams (mg) every four hours as needed.
Children: The dose is based on body weight and must be determined by the doctor.
If you miss a dose of this medicine, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double doses.
Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.
Keep out of the reach of children.
Do not keep outdated medicine or medicine no longer needed.