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Specific Info on Promethazine

Overdose Information

People who take too much of this medication may experience effects such as (but not limited to):
  • Extreme drowsiness
  • Low blood pressure
  • Decreased breathing
  • Unconsciousness
  • Overactive reflexes and muscle tone
  • Sudden death.
If you happen to overdose on promethazine, seek medical attention right away.
(Click Phenergan Overdose for more information.)

What Should I Do If I Miss a Dose of Promethazine?

If you forget to take a dose of this medication, take it as soon as possible. However, if it is almost time for your next dose, simply skip the one you missed and continue with your regular schedule. Do not take a double dose of promethazine.

Storage Methods

You should store both tablets and syrup at room temperature, away from light and moisture. The suppositories should be kept in the refrigerator. Keep promethazine and all other medications out of the reach of children and pets.

Is There a Generic Version?

This medication is available in generic form. In fact, brand-name promethazine tablets, syrup, and suppositories are no longer available.
(Click Generic Phenergan for more information.)

Who Makes This Medicine?

Brand-name promethazine tablets, syrup, and suppositories were made by Wyeth Pharmaceuticals, Inc. but are no longer available. The brand-name injectable form is made by Baxter Healthcare Corporation. Generic versions are made by various manufacturers.
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Promethazine HCL Medication Information

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