Phenindamine (By mouth)
Treats runny nose and itchy, watery eyes that are caused by hay fever or the common cold. This medicine is an antihistamine.
There may be other brand names for this medicine.
When This Medicine Should Not Be Used
You should not use this medicine if you have had an allergic reaction to phenindamine, or if you are having an asthma attack. You should not use this medicine if you have narrow-angle glaucoma, a stomach ulcer, or if you are unable to urinate. Do not use this medicine if you have taken an MAO inhibitor (MAOI) such as Eldepryl®, Marplan®, Nardil®, or Parnate® within the past 14 days.
How to Use This Medicine
- Your doctor will tell you how much of this medicine to use and how often. Do not use more medicine or use it more often than your doctor tells you to.
- If you are using this medicine without a prescription, follow the instructions on the medicine label.
- You may take this medicine with food if it upsets your stomach.
If a dose is missed:
- If you miss a dose or forget to use your medicine, use it as soon as you can. If it is almost time for your next dose, wait until then to use the medicine and skip the missed dose. Do not use extra medicine to make up for a missed dose.
How to Store and Dispose of This Medicine
- Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light.
- Ask your pharmacist, doctor, or health caregiver about the best way to dispose of any outdated medicine or medicine no longer needed.
- Keep all medicine away from children and never share your medicine with anyone.
Drugs and Foods to Avoid
Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.
- Tell your doctor if you are using any medicines that make you sleepy. These include sleeping pills, cold and allergy medicine, narcotic pain relievers, and sedatives.
Warnings While Using This Medicine
- Make sure your doctor knows if you are pregnant or breast feeding. You should not breast feed while you are using this medicine.
- Tell your doctor if you have asthma, glaucoma, heart disease, high blood pressure, an overactive thyroid, a history of stomach ulcers, or an enlarged prostate.
- Your doctor should know about any allergies you have.
- This medicine may make you dizzy or drowsy. Avoid driving, using machines, or doing anything else that could be dangerous if you are not alert.
Possible Side Effects While Using This Medicine
Call your doctor right away if you notice any of these side effects:
- Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
- Problems with speech or walking.
- Problems with urination.
- Seizure or hallucinations.
- Tremors, shaking, or muscle movement that you cannot control (often in your tongue or eyes).
- Severe confusion, weakness, lightheadedness or fainting.
- Unusual behavior.
If you notice these less serious side effects, talk with your doctor:
- Dry mouth, nose, or throat.
- Feeling excited or irritable.
- Thickened mucus in your throat or nose.
If you notice other side effects that you think are caused by this medicine, tell your doctor
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088
- Last Reviewed on 06/12/2013
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