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promethazine (generic name)

Phenergan (brand name)

(proe METH a zeen): A phenothiazine antiemetic - It is used to treat allergic reactions and to treat or prevent nausea and vomiting from illness or motion sickness
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Promethazine Hydrochloride Oral tablet

What should I watch for while using this medicine?

Tell your doctor or health care professional if your symptoms do not start to get better in 1 to 2 days.

You may get drowsy or dizzy. Do not drive, use machinery, or do anything that needs mental alertness until you know how this medicine affects you. To reduce the risk of dizzy or fainting spells, do not stand or sit up quickly, especially if you are an older patient. Alcohol may increase dizziness and drowsiness. Avoid alcoholic drinks.

Your mouth may get dry. Chewing sugarless gum or sucking hard candy, and drinking plenty of water may help. Contact your doctor if the problem does not go away or is severe.

This medicine may cause dry eyes and blurred vision. If you wear contact lenses you may feel some discomfort. Lubricating drops may help. See your eye doctor if the problem does not go away or is severe.

This medicine can make you more sensitive to the sun. Keep out of the sun. If you cannot avoid being in the sun, wear protective clothing and use sunscreen. Do not use sun lamps or tanning beds/booths.

If you are diabetic, check your blood-sugar levels regularly.

What side effects may I notice from receiving this medicine?

Side effects that you should report to your doctor or health care professional as soon as possible:
  • blurred vision
  • irregular heartbeat, palpitations or chest pain
  • muscle or facial twitches
  • pain or difficulty passing urine
  • seizures
  • skin rash
  • slowed or shallow breathing
  • unusual bleeding or bruising
  • yellowing of the eyes or skin

Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):

  • headache
  • nightmares, agitation, nervousness, excitability, not able to sleep (these are more likely in children)
  • stuffy nose

This list may not describe all possible side effects. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Where should I keep my medicine?

Keep out of the reach of children.

Store at room temperature, between 20 and 25 degrees C (68 and 77 degrees F). Protect from light. Throw away any unused medicine after the expiration date.

NOTE:This sheet is a summary. It may not cover all possible information. If you have questions about this medicine, talk to your doctor, pharmacist, or health care provider.

Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.

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Last Updated

July 16, 2009

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