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Codahistine-DH Elixir, Dihistine DH, Phenylhistine DH Expectorant, |Phenylhistine DH Expectorant

Phenylhistine DH Expectorant

Generic Name: chlorpheniramine, codeine, and pseudoephedrine (klor fen EERa meen, KOE deen, soo doe e FED rin)
Brand Names: Codahistine-DH Elixir, Dihistine DH, Phenylhistine DH Expectorant

What is chlorpheniramine, codeine, and 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.

Codeine is in a group of drugs called narcotics. Codeine is a cough suppressant that affects the signals in the brain that trigger cough reflex.

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, codeine, and pseudoephedrine is used to treat cough, sneezing, itching, watery eyes, runny nose, stuffy nose, and sinus congestion caused by allergies, the common cold, or the flu.

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

What is the most important information I should know about chlorpheniramine, codeine, and pseudoephedrine?

What should I discuss with my healthcare provider before taking chlorpheniramine, codeine, and pseudoephedrine?

Before taking chlorpheniramine, codeine, and pseudoephedrine, tell your doctor if you are allergic any drugs, or if you have:

• kidney or liver disease;

• heart disease or high blood pressure;

• enlarged prostate or urination problems;

• diabetes;

• glaucoma;

• a thyroid disorder;

• asthma, COPD, sleep apnea, or other breathing disorders;

• a history of head injury or brain tumor;

• epilepsy or other seizure disorder;

• low blood pressure;

• gallbladder disease;

• Addison"s disease or other adrenal gland disorders;

• mental illness; or

• a history of drug or alcohol addiction.

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

How should I take chlorpheniramine, codeine, and pseudoephedrine?

Take this medication exactly as it was prescribed for you. Do not take the medication in larger amounts, or take it for longer than recommended by your doctor. Follow the directions on your prescription label. Cough or cold medicine is usually taken for only a short time until your symptoms clear up.

Measure the liquid form of this medicine with a special dose-measuring spoon or cup, not a regular table spoon. If you do not have a dose-measuring device, ask your pharmacist for one.

If you need to have any type of surgery, tell the surgeon ahead of time if you have taken a cold medicine within the past few days.

This medication can cause you to have unusual results with allergy skin tests. Tell any doctor who treats you that you are taking an antihistamine.

What happens if I miss a dose?

Since cough or cold 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.

What happens if I overdose?

What should I avoid while taking chlorpheniramine, codeine, and pseudoephedrine?

Avoid becoming overheated or dehydrated during exercise and in hot weather.

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.

What are the possible side effects of chlorpheniramine, codeine, and pseudoephedrine?

• fast, pounding, or uneven heartbeats;

• shallow breathing, slow heartbeat;

• severe dizziness, fainting, anxiety, restless feeling, nervousness, or tremor;

• confusion, hallucinations, unusual thoughts or behavior;

• easy bruising or bleeding, unusual weakness, fever, chills, body aches, flu symptoms;

• urinating less than usual or not at all; or

• increased blood pressure (severe headache, blurred vision, trouble concentrating, chest pain, numbness, seizure).

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

• blurred vision;

• dry mouth;

• nausea, vomiting, stomach pain, constipation, mild loss of appetite;

• mild dizziness, drowsiness;

• problems with memory or concentration;

• ringing in your ears;

• warmth, tingling, or redness under your skin;

• restless or excitability (especially in children);

• sleep problems (insomnia); or

• skin rash or itching.

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.

What other drugs will affect chlorpheniramine, codeine, and pseudoephedrine?

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

• cimetidine (Tagamet);

• rifampin (Rifadin, Rifater, Rifamate, Rimactane);

• zidovudine (Retrovir, AZT);

• antidepressants such as amitriptyline (Elavil), clomipramine (Anafranil), imipramine (Janimine, Tofranil), and others;

• 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;

• bladder or urinary medications such as oxybutynin (Ditropan, Oxytrol) or tolterodine (Detrol);

• a diuretic (water pill), or blood pressure medication;

• medication to treat irritable bowel syndrome;

• medicines to treat psychiatric disorders, such as chlorpromazine (Thorazine), haloperidol (Haldol), mesoridazine (Serentil), pimozide (Orap), or thioridazine (Mellaril); or

• seizure medication such as phenytoin (Dilantin) or phenobarbital (Luminal, Solfoton).

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

There may be other drugs not listed that can affect chlorpheniramine, codeine, 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.

Where can I get more information?

• Your pharmacist has information about chlorpheniramine, codeine, and pseudoephedrine written for health professionals that you may read.

What does my medicine look like?

Chlorpheniramine, codeine, and pseudoephedrine is available with a prescription under the brand names Codahistine-DH, Dihistine DH, and Phenylhistine DH. Other brand or generic formulations may also be available. Ask your pharmacist any questions you have about this medication, especially if it is new to you.

• Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed
• 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.