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Diseases reference index «Pheniramine overdose»

Pheniramine is a type of medication called an antihistamine, which helps relieve allergy symptoms. Pheniramine overdose occurs when someone accidentally or intentionally takes more than the normal or recommended amount of this medication.

This is for information only and not for use in the treatment or management of an actual poison exposure. If you have an exposure, you should call your local emergency number (such as 911) or the National Poison Control Center at 1-800-222-1222.

Poisonous Ingredient


Where Found

  • Citra Forte
  • Dehistine D
  • Liqui-Histine
  • Poly-D
  • Poly-Histine
  • Ru-Tuss with Hydrocodone

Note: This list may not be all inclusive.


  • Eyes, ears, nose, and throat
    • Blurred vision
    • Dry mouth
    • Enlarged pupils
    • Ringing in the ears
  • Heart and blood
    • Rapid heartbeat
  • Nervous system
    • Convulsions
    • Delirium
    • Depression
    • Difficulty urinating (especially in men with enlarged prostates)
    • Disorientation
    • Drowsiness
    • Excitation
    • Fever
    • Hallucinations
    • Nervousness
    • Unsteadiness
    • Tremor
  • Skin
    • Flushed skin
  • Stomach and intestinal tract
    • Nausea
    • Vomiting

Home Care

Seek immediate medical attention. DO NOT make the person throw up unless told to do so by poison control.

Before Calling Emergency

Determine the following information:

  • Patient's age, weight, and condition
  • Name of product (as well as the ingredients and strength, if known)
  • Time it was swallowed
  • Amount swallowed
  • If the medication was prescribed for the patient

Poison Control

The National Poison Control Center (1-800-222-1222) can be called from anywhere in the United States. This national hotline number will let you talk to experts in poisoning. They will give you further instructions.

This is a free and confidential service. All local poison control centers in the United States use this national number. You should call if you have any questions about poisoning or poison prevention. It does NOT need to be an emergency. You can call for any reason, 24 hours a day, 7 days a week.

Take the container with you to the hospital, if possible.

See: Poison control center - emergency number

What to Expect at the Emergency Room

The health care provider will measure and monitor the patient's vital signs, including temperature, pulse, breathing rate, and blood pressure.

The patient may receive:

  • Activated charcoal
  • Breathing support
  • Fluids by IV
  • Laxative
  • Medicine (antidote) to reverse the effect of the poison
  • Tube through the mouth into the stomach to empty the stomach (gastric lavage)

Outlook (Prognosis)

If the patient survives the first 24 hours, recovery is good. Few patients die from an antihistamine overdose.

Alternative Names

Dehistine D overdose; Liqui-Histine overdose; Poly-D overdose; Poly-Histine overdose; Liqui-minic infant overdose; Triactin overdose; Triaminic infant overdose

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