acetaminophen, chlorpheniramine, dextrometho... Health Article

• fast, pounding, or uneven heartbeat;

• confusion, hallucinations, unusual thoughts or behavior;

• slow, shallow breathing;

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

• urinating less than usual or not at all;

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

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

• nausea, stomach pain, low fever, loss of appetite, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes).

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

• blurred vision;

• dry mouth;

• nausea, stomach pain, constipation;

• mild loss of appetite, upset stomach;

• warmth, tingling, or redness under your skin;

• restless or excitability (especially in children);

• sleep problems (insomnia);

• dizziness, drowsiness;

• problems with memory or concentration;

• ringing in your ears; or

• skin rash, redness, 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 acetaminophen, chlorpheniramine, dextromethorphan and pseudoephedrine?

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

• celecoxib (Celebrex);

• cinacalcet (Sensipar);

• darifenacin (Enablex);

• imatinib (Gleevec);

• isoniazid;

• quinidine (Quinaglute, Quinidex);

• ranolazine (Ranexa)

• ritonavir (Norvir);

• sibutramine (Meridia);

• terbinafine (Lamisil);

• zidovudine (Retrovir, AZT);

• an antidepressant;

• a bronchodilator;

• a diuretic (water pill);

• medication to treat irritable bowel syndrome, bladder spasms, or urinary incontinence;

• aspirin or salicylates (such as Disalcid, Doan's Pills, Dolobid, Salflex, Tricosal, and others);

• medicines to treat high blood pressure;

• gout medications such as probenecid (Benbemid) or sulfinpyrazone;

• a beta-blocker such as atenolol (Tenormin), carteolol (Cartrol), metoprolol (Lopressor, Toprol), nadolol (Corgard), propranolol (Inderal), sotalol (Betapace), timolol (Blocadren), and others;

• 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 acetaminophen, chlorpheniramine, dextromethorphan and pseudoephedrine, or you may need dosage adjustments or special tests during treatment.

There may be other drugs not listed that can affect acetaminophen, chlorpheniramine, dextromethorphan 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 acetaminophen, chlorpheniramine, dextromethorphan and pseudoephedrine written for health professionals that you may read.

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.