What is chlorpheniramine-pseudoephedrine?

Chlorpheniramine is an antihistamine that reduces the natural chemical histamine in the body. Histamine can produce symptoms of sneezing, itching, watery eyes, and runny nose.

Pseudoephedrine is a decongestant that shrinks blood vessels in the nasal passages. Dilated blood vessels can cause nasal congestion (stuffy nose).

The combination of chlorpheniramine and pseudoephedrine is used to treat sneezing, cough, runny or stuffy nose, itchy or watery eyes, hives, skin rash, itching, and other symptoms of allergies and the common cold.

Chlorpheniramine and pseudoephedrine may also be used for purposes other than those listed in this medication guide.

Precautions

Do not use a cough or cold medicine if you have used an MAO inhibitor such as isocarboxazid (Marplan), phenelzine (Nardil), rasagiline (Azilect), selegiline (Eldepryl, Emsam), or tranylcypromine (Parnate) within the past 14 days. Serious, life-threatening side effects can occur if you take cough or cold medicine before the MAO inhibitor has cleared from your body.

Before taking this medication, tell your doctor if you are allergic to chlorpheniramine, or pseudoephedrine, or if you have:

  • kidney disease;
  • diabetes;
  • glaucoma;
  • heart disease or high blood pressure;
  • diabetes;
  • a thyroid disorder;
  • an enlarged prostate; or
  • problems with urination.

If you have any of these conditions, you may not be able to use chlorpheniramine and pseudoephedrine, or you may need a dosage adjustment or special tests during treatment.

This medication may be harmful to an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant during treatment.

Chlorpheniramine and pseudoephedrine can pass into breast milk and may harm a nursing baby. Do not use this medication without telling your doctor if you are breast-feeding a baby.

Artificially-sweetened liquid forms of cold medicine may contain phenylalanine. This would be important to know if you have phenylketonuria (PKU). Check the ingredients and warnings on the medication label if you are concerned about phenylalanine.

This medication can cause side effects that may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be awake and alert.

Avoid drinking alcohol. It can increase some of the side effects of this medication.

Avoid using other medicines that make you sleepy (such as sleeping pills, pain medication, muscle relaxers, and medicine for seizures, depression or anxiety). They can add to sleepiness caused by chlorpheniramine and pseudoephedrine.

Avoid taking diet pills, caffeine pills, or other stimulants (such as ADHD medications) without your doctor’s advice. Taking a stimulant together with a decongestant can increase your risk of unpleasant side effects.

Do not use any other over-the-counter cold, allergy, or sleep medication without first asking your doctor or pharmacist. If you take certain products together you may accidentally take too much of a certain drug. Read the label of any other medicine you are using to see if it contains an antihistamine or decongestant.

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Instructions

Seek emergency medical attention if you think you have used too much of this medicine.

Symptoms of an overdose may include feeling restless or nervous, nausea, vomiting, stomach pain, dizziness, drowsiness, dry mouth, warmth or tingly feeling, or seizure (convulsions).

Since cold or allergy medicine is usually taken only as needed, you may not be on a dosing schedule. If you are taking the medication regularly, take the missed dose as soon as you remember. If it is almost time for your next dose, skip the missed dose and take the medicine at your next regularly scheduled time. Do not take extra medicine to make up the missed dose.

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Side Effects

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Stop using this medication and call your doctor at once if you have any of these serious side effects:

  • fast, pounding, or uneven heartbeat;
  • confusion, hallucinations, unusual thoughts or behavior;
  • severe dizziness, anxiety, restless feeling, or nervousness;
  • increased blood pressure (severe headache, blurred vision, trouble concentrating, chest pain, numbness, seizure);
  • confusion, hallucinations, unusual thoughts or behavior;
  • easy bruising or bleeding, unusual weakness, fever, chills, body aches, flu symptoms; or
  • urinating less than usual or not at all.

Keep taking the medication and talk to your doctor if you have any of these less serious side effects:

  • blurred vision;
  • dry mouth;
  • nausea, stomach pain, constipation;
  • mild loss of appetite, stomach upset;
  • warmth, tingling, or redness under your skin;
  • sleep problems (insomnia);
  • restless or excitability (especially in children);
  • skin rash or itching;
  • dizziness, drowsiness;
  • problems with memory or concentration; or
  • ringing in your ears.

Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome. You may report side effects to FDA at 1-800-FDA-1088.

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Interactions

Before taking this medication, tell your doctor if you are using any of the following drugs:

  • medicines to treat high blood pressure;
  • a diuretic (water pill);
  • medication to treat irritable bowel syndrome;
  • bladder or urinary medications such as oxybutynin (Ditropan, Oxytrol) or tolterodine (Detrol);
  • aspirin or salicylates (such as Disalcid, Doan's Pills, Dolobid, Salflex, Tricosal, and others);
  • a beta-blocker such as atenolol (Tenormin), carteolol (Cartrol), metoprolol (Lopressor, Toprol), nadolol (Corgard), propranolol (Inderal), sotalol (Betapace), timolol (Blocadren), and others; or
  • antidepressants such as amitriptyline (Elavil), clomipramine (Anafranil), imipramine (Janimine, Tofranil), and others.

If you are using any of these drugs, you may not be able to use chlorpheniramine and pseudoephedrine, or you may need dosage adjustments or special tests during treatment.

There may be other drugs not listed that can affect chlorpheniramine and pseudoephedrine. Tell your doctor about all the prescription and over-the-counter medications you use. This includes vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start using a new medication without telling your doctor.

Other Names

Aller-Chlor Decongestant, Allerest Maximum Strength, Anamine, Anamine T.D., Anaplex, Atrohist Pediatric Capsule, Biohist LA, Brexin L.A., C-Phed Tannate, CP-Tannic, Chlor Trimeton Allergy Decongestant, Chlor-Trimeton Allergy Decongestant SR, Chlorafed, Chlorafed H.S. Timecelles, Chlorafed Timecelles, Chlordrine SR, Chlorphedrin SR, Clorfed, Clorfed II, Codimal-LA, Codimal-LA Half, Colfed-A, Cophene No. 2, Curaler, D-Amine-SR, Dayquil Allergy, Deconamine, Deconamine SR, Deconomed S.R., Dicel, Duotan, Dura-Tap/PD, Durafed, Duralex, Dynahist-ER Pediatric, Fedahist, Fedahist Gyrocaps, Fedahist Timecaps, Genaphed Plus, Hayfebrol Liquid, Histade, Histafed LA, Histalet, Histex, Isophen-DF, Klerist-D, Kronofed-A, Kronofed-A-Jr, Mintex, ND Clear, Novafed A, Orlenta, Pediacare Cold and Allergy, Pediox Chewable, QDall, Re2+30, Rescon Jr(obsolete), Rescon(obsolete), Rescon-Ed, Rinade-B.I.D., Ryna Liquid, Suclor, Sudal-12, Sudal-12 Chewable, Sudal-12 Tannate, Suphedrine Plus, Suphenamine-SR, Tanafed, Tavist-DA, Triaminic Cold and Allergy, Triaminic Softchew Cold and Allergy, chlorpheniramine-pseudoephedrine, pseudoephedrine-chlorpheniramine, AccuHist Drops, De-Congestine, Duratuss DA, Neutrahist Drops, Pseudochlor, Pseudocot-C, Sudafed Plus, Sudafed Sinus/Allergy, SudaHist, Sudogest Plus, Time-Hist, and Triaminic Softchews Allergy Runny Nose and Congestion

Available Strengths & Dosages


Route Form Strength
oral capsule, extended release 8 mg-120 mg

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Disclaimer

Every effort has been made to ensure that the information provided by Cerner Multum, Inc. ('Multum') is accurate, up-to-date, and complete, but no guarantee is made to that effect. Drug information contained herein may be time sensitive. Multum information has been compiled for use by healthcare practitioners and consumers in the United States and therefore Multum does not warrant that uses outside of the United States are appropriate, unless specifically indicated otherwise. Multum's drug information does not endorse drugs, diagnose patients or recommend therapy. Multum's drug information is an informational resource designed to assist licensed healthcare practitioners in caring for their patients and/or to serve consumers viewing this service as a supplement to, and not a substitute for, the expertise, skill, knowledge and judgment of healthcare practitioners. The absence of a warning for a given drug or drug combination in no way should be construed to indicate that the drug or drug combination is safe, effective or appropriate for any given patient. Multum does not assume any responsibility for any aspect of healthcare administered with the aid of information Multum provides. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the drugs you are taking, check with your doctor, nurse or pharmacist.

Copyright 1996-2004 Cerner Multum, Inc. Version 2.05. Revision date 8/23/04

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