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MEPERIDINE/PROMETHAZINE (Oral) (Capsule) Drug and Prescription Information


MEPERIDINE/PROMETHAZINE (Oral) (Capsule) Medication Classification


MEPERIDINE/PROMETHAZINE (Oral) (Capsule) Brandname


MEPERIDINE/PROMETHAZINE (Oral) (Capsule) is used for the Treatment

Meperidine (me-PER-i-deen), Promethazine (proe-METH-a-zeen) Treats pain and calms patients before and during surgery.

When To Not Use MEPERIDINE/PROMETHAZINE (Oral) (Capsule)

You should not use this medicine if you have had an allergic reaction to promethazine, meperidine or to any phenothiazine medicine (such as Thorazine® or Mellaril®). You should not take this medicine if you have taken an MAO inhibitor medicine, such as Nardil®, Eldepryl®,or Parnate® in the past 14 days.

How Should You Use MEPERIDINE/PROMETHAZINE (Oral) (Capsule)


  • Your doctor will tell you how much to take and how often.
  • May be taken with food to avoid stomach upset.
  • Drink plenty of fluids to help avoid constipation.
  • If a dose is missed:
  • Take the missed dose as soon as possible.
  • If it is almost time for next dose, skip the missed dose and take your medicine at your usual times.
  • You should not use two doses at the same time.

Proper MEPERIDINE/PROMETHAZINE (Oral) (Capsule) Storage

Store MEPERIDINE/PROMETHAZINE (Oral) (Capsule) at room temperature away from sunlight and moisture unless otherwise stated by manufacturer's instructions or labelling. Keep MEPERIDINE/PROMETHAZINE (Oral) (Capsule) and all medications out of the reach of children.

What To Avoid While Using MEPERIDINE/PROMETHAZINE (Oral) (Capsule)

Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.

  • Avoid drinking alcohol.
  • Make sure your doctor knows if you are taking any other medicine that could make you drowsy, such as sleeping pills, cold or allergy medicines, tranquilizers, muscle relaxants, antidepressants, or strong pain killers.


  • Check with your doctor before taking this medicine if you have asthma, epilepsy, heart, liver, or kidney disease, gallbladder problems, an overactive thyroid, or problems urinating.
  • If you are pregnant or breastfeeding, talk to your doctor before taking this medicine.
  • This medicine can be habit-forming. You should not use more than your doctor ordered or use it for longer periods of time.
  • If you have taken this medicine for several weeks, talk to your doctor before stopping. You may need to take smaller and smaller amounts before you stop taking the medicine completely.
  • This medicine may cause dizziness or blurred vision. Be careful if driving a car or using machinery.

MEPERIDINE/PROMETHAZINE (Oral) (Capsule) Side Effects

Call your doctor right away if you notice any of these side effects:

  • Fast or slowed heartbeat
  • Trouble breathing
  • Hives, skin rash, or intense itching
  • Severe confusion or tiredness
  • Tremors or seizures
  • Trouble going to the bathroom (urinating)
  • If you notice these less serious side effects, talk with your doctor:
  • Drowsiness, dizziness, or weakness
  • Dry mouth, nausea or vomiting
  • Constipation
  • Nervousness


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