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Phenergan Dosage

Phenergan Dosing for Nausea and Vomiting

A typical dose of Phenergan for treating nausea and vomiting in adults is 12.5 to 25 mg (for all forms) every four to six hours as needed. For children, the healthcare provider will base the amount on your child's weight -- typically around 0.5 mg per pound, given every four to six hours as needed.
It should be noted that Phenergan (and other nausea and vomiting medications) should not be given to children or adolescents if the cause of the vomiting is unknown.

Dose of Phenergan for Sedation

Typically, a Phenergan dosage 12.5 to 25 mg (any form) will produce sedation in children. Adults, however, usually require a higher amount: 25 to 50 mg of any form.

General Information on Dosing With Phenergan

Some considerations for people taking Phenergan include the following:
  • It is important to note that Phenergan should not be used in children under the age of two years old, due to the risk of life-threatening breathing problems.
  • This medication comes in tablet, rectal suppository, syrup, and injectable form. It is usually taken one to three times daily.
  • You can take a Phenergan dosage with or without food.
  • Great care should be taken if Phenergan is injected intravenously, as improper administration can cause severe tissue damage, including gangrene. In some cases, amputations have resulted.
Phenergan should not be given by "IV push" (when the medication is injection with a syringe rapidly into the IV line rather than dripped slowly into the IV line). Injection directly into a muscle is the preferred way to inject this drug in most situations.
  • For the medication to work properly, it must be taken as prescribed.
  • If you are unsure about anything related Phenergan dosing, please talk with your doctor, nurse, or pharmacist.
Warning: 10 Hidden Sources of Lactose

Phenergan Drug Information

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