Phenerzine

Name: Phenerzine

Uses of Phenerzine

Promethazine is a prescription medication used to treat symptoms of allergic reactions, such as:

  • rhinitis (sneezing, stuffy or runny nose)
  • itchy & watery eyes
  • skin irritation, such as swelling or hives

Promethazine is also used for:

  • prevention or treatment of nausea & vomiting, including nausea & vomiting after surgery
  • prevention or treatment of motion sickness
  • sedation (to calm or encourage light sleeping)
This medication may be prescribed for other uses.  Ask your doctor or pharmacist for more information. 

Side Effects of Phenerzine

Serious side effects have been reported with promethazine.  See "Drug Precautions" section.

Common side effects of promethazine include:
  • dizzness
  • drowsiness
  • blurred vision
  • confusion
  • dry mouth
This is not a complete list of promethazine side effects.  Ask your doctor or pharmacist for more information. Call your doctor for medical advice about side effects.  You may report side effects to the FDA at 1-800-FDA-1088.

Phenerzine and Lactation

Tell your doctor if you are breastfeeding or plan to breastfeed.  It is not known if promethazine is excreted in human breast milk or if it will harm your nursing baby.

 

Phenerzine Usage

Take promethazine exactly as prescribed.

Promethazine comes as a tablet, oral solution (liquid), rectal suppository, or liquid to be injected into the muscle.  
  • For prevention of motion sickness, promethazine is usually taken 30-60 minutes before departure, and then every 12 hours as needed.
  • For treatment of nausea and vomiting, promethazine is usually taken every 4 to 6 hours as needed.
  • For treatment of allergies, promethazine is usually taken once daily at bedtime, or 2 to 3 times daily before meals.
  • For sedation, promethazine is usually taken once daily at bedtime.

Promethazine can be taken with or without food.

If you miss a dose, take the missed dose as soon as you remember. If it is almost time for the next dose, skip the missed dose and take your next dose at the regular time. Do not take two doses of promethazine at the same time. 

 

Phenerzine Overdose

If you take too much promethazine, call your healthcare provider or local Poison Control Center, or seek emergency medical attention right away.

 

Other Requirements

Store promethazine rectal suppositories in a refrigerator between 36 - 46°F.

Store promethazine tablets, oral solution, and solution for injection at room temperature between 68 - 77°F and protect from light.
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