Generic Name: chlorpheniramine/codeine/pseudoephedrine (KLOR-fen-IR-a-meen/KOE-deen/SOO-doe-e-FED-rin)
Brand Name: Phenylhistine DH
Chlorpheniramine/codeine/pseudoephedrine liquid is used for:
Treating symptoms of the common cold, flu, or hay fever, and other upper respiratory allergies, such as cough, congestion, runny nose, sneezing, itching of the nose and throat, and itchy, watery eyes. It may also be used for other conditions as determined by your doctor.
Chlorpheniramine/codeine/pseudoephedrine liquid is a narcotic antitussive (cough suppressant), antihistamine, and decongestant combination. The antitussive works by suppressing the cough center in the brain. The antihistamine works by blocking the action of histamine, which reduces the symptoms of an allergic reaction, such as itchy, watery eyes and runny nose. The decongestant shrinks swollen nasal passages, which relieves nasal congestion.
Do NOT use chlorpheniramine/codeine/pseudoephedrine liquid if:
- you are allergic to any ingredient in chlorpheniramine/codeine/pseudoephedrine liquid or any other codeine-related medicine (eg, dihydrocodeine)
- you have severe high blood pressure, severe heart problems, or heart blood vessel problems
- you have ulcers, narrow-angle glaucoma, trouble urinating, or if you are unable to urinate
- you are taking sodium oxybate (GHB) or if you have taken furazolidone or a monoamine oxidase inhibitor (MAOI) (eg, phenelzine) within the last 14 days
Contact your doctor or health care provider right away if any of these apply to you.
Before using chlorpheniramine/codeine/pseudoephedrine liquid:
Some medical conditions may interact with chlorpheniramine/codeine/pseudoephedrine liquid. Tell your doctor or pharmacist if you have any medical conditions, especially if any of the following apply to you:
- if you are pregnant, planning to become pregnant, or are breast-feeding
- if you are taking any prescription or nonprescription medicine, herbal preparation, or dietary supplement
- if you have allergies to medicines, foods, or other substances
- if you have a history of alcohol or drug abuse, dependence on narcotics, mental or mood problems, or suicidal thoughts or behaviors
- if you have increased pressure in the head, an unusual growth in the brain (eg, tumor), a recent head injury, Parkinson disease, Reye syndrome, the blood disease porphyria, or a blockage of your stomach, bowel, or bladder
- if you have a history of epilepsy or seizures, lung or breathing problems (eg, asthma, emphysema, sleep apnea, croup), stomach or bowel problems, ulcers, chronic constipation, liver or kidney problems, glaucoma or increased pressure in the eye, an enlarged prostate gland or other prostate problems, difficulty urinating, heart problems, diabetes, high blood pressure, blood vessel problems, adrenal gland problems, gallbladder problems, an overactive or underactive thyroid, irregular heartbeat, stroke, chronic cough, or if your cough occurs with large amounts of mucus
- if you have recently had surgery
Some MEDICINES MAY INTERACT with chlorpheniramine/codeine/pseudoephedrine liquid. Tell your health care provider if you are taking any other medicines, especially any of the following:
- Digoxin or droxidopa because the risk of irregular heartbeat or heart attack may be increased
- Furazolidone, linezolid, or MAOIs (eg, phenelzine) because severe high blood pressure and fever may occur.
- Barbiturates (eg, phenobarbital), beta-blockers (eg, propranolol), cimetidine, catechol-O-methyltransferase (COMT) inhibitors (eg, tolcapone), HIV protease inhibitors (eg, ritonavir), sodium oxybate (GHB), urinary alkalinizers (eg, potassium citrate), or tricyclic antidepressants (eg, amitriptyline) because they may increase the risk of chlorpheniramine/codeine/pseudoephedrine liquid's side effects, including severe drowsiness and trouble breathing
- Quinidine or rifampin because they may decrease chlorpheniramine/codeine/pseudoephedrine liquid's effectiveness
- Bromocriptine or hydantoins (eg, phenytoin) because the risk of their side effects may be increased by chlorpheniramine/codeine/pseudoephedrine liquid
- Guanadrel, guanethidine, mecamylamine, methyldopa, mexiletine, or reserpine because their effectiveness may be decreased by chlorpheniramine/codeine/pseudoephedrine liquid
- Naltrexone because it may decrease chlorpheniramine/codeine/pseudoephedrine liquid's effectiveness. Withdrawal symptoms may also occur in patients who are physically dependent on opioids. You must not take naltrexone until you have stopped chlorpheniramine/codeine/pseudoephedrine liquid for 7 to 10 days and you have had a negative naloxone challenge test
This may not be a complete list of all interactions that may occur. Ask your health care provider if chlorpheniramine/codeine/pseudoephedrine liquid may interact with other medicines that you take. Check with your health care provider before you start, stop, or change the dose of any medicine.
How to use chlorpheniramine/codeine/pseudoephedrine liquid:
Use chlorpheniramine/codeine/pseudoephedrine liquid as directed by your doctor. Check the label on the medicine for exact dosing instructions.
- Take chlorpheniramine/codeine/pseudoephedrine liquid by mouth with or without food. If stomach upset occurs, take with food to reduce stomach irritation.
- Use a measuring device marked for medicine dosing. Ask your pharmacist for help if you are unsure of how to measure your dose.
- If you miss a dose of chlorpheniramine/codeine/pseudoephedrine liquid and you are taking it regularly, take it as soon as possible. If it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not take 2 doses at once.
Ask your health care provider any questions you may have about how to use chlorpheniramine/codeine/pseudoephedrine liquid.
Important safety information:
- Chlorpheniramine/codeine/pseudoephedrine liquid may cause dizziness, drowsiness, or blurred vision. These effects may be worse if you take it with alcohol or certain medicines. Use chlorpheniramine/codeine/pseudoephedrine liquid with caution. Do not drive or perform other possibly unsafe tasks until you know how you react to it.
- Do not drink alcohol or use medicines that may cause drowsiness (eg, sleep aids, muscle relaxers) while you are using chlorpheniramine/codeine/pseudoephedrine liquid; it may add to their effects. Ask your pharmacist if you have questions about which medicines may cause drowsiness.
- Do NOT take more than the recommended dose or use for longer than prescribed without checking with your doctor.
- If your symptoms do not get better within 7 days, or if you develop a high fever or persistent headache, check with your doctor.
- Tell your doctor or dentist that you take chlorpheniramine/codeine/pseudoephedrine liquid before you receive any medical or dental care, emergency care, or surgery.
- Use chlorpheniramine/codeine/pseudoephedrine liquid with caution in the ELDERLY because they may be more sensitive to its effects, especially possible breathing problems and drowsiness.
- Use chlorpheniramine/codeine/pseudoephedrine liquid with extreme caution in CHILDREN younger than 6 years old; safety and effectiveness in these children have not been confirmed.
- PREGNANCY and BREAST-FEEDING: Do not use chlorpheniramine/codeine/pseudoephedrine liquid is you are pregnant. If you think you may be pregnant, contact your doctor right away. Chlorpheniramine/codeine/pseudoephedrine liquid is found in breast milk. Do not breast-feed while taking chlorpheniramine/codeine/pseudoephedrine liquid.
When used for long periods of time or at high doses, chlorpheniramine/codeine/pseudoephedrine liquid may not work as well and may require higher doses to obtain the same effect as when originally taken. This is known as TOLERANCE. Talk with your doctor if chlorpheniramine/codeine/pseudoephedrine liquid stops working well. Do not take more than prescribed.
When used for longer than a few weeks or at high doses, some people develop a need to continue taking chlorpheniramine/codeine/pseudoephedrine liquid. This is known as DEPENDENCE or addiction. An early sign of addiction is medicine ineffectiveness. Dependence is not an issue in terminal illness, when pain relief is more important. If using chlorpheniramine/codeine/pseudoephedrine liquid for an extended period of time, do not suddenly stop taking chlorpheniramine/codeine/pseudoephedrine liquid without your doctor's approval. If you suddenly stop taking chlorpheniramine/codeine/pseudoephedrine liquid, you may have WITHDRAWAL symptoms, including anxiety; diarrhea; fever, runny nose, or sneezing; goose bumps and abnormal skin sensations; nausea; vomiting; pain; rigid muscles; rapid heartbeat; seeing, hearing, or feeling things that are not there; shivering or tremors; sweating; trouble sleeping. Contact your doctor if you notice any of these symptoms after stopping chlorpheniramine/codeine/pseudoephedrine liquid.
Possible side effects of chlorpheniramine/codeine/pseudoephedrine liquid:
All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome:
Seek medical attention right away if any of these SEVERE side effects occur:
Constipation; dizziness; drowsiness; dry mouth, throat, or nose; excitement; nausea; stomach upset; thickening or mucus in nose or throat; vomiting.
Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); confusion; difficulty urinating; fainting; fast, slow, or irregular heartbeat; flushing or redness of face; severe drowsiness; trouble breathing; vision changes.
This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.
If OVERDOSE is suspected:
Contact 1-800-222-1222 (the American Association of Poison Control Centers), your local poison control center, or emergency room immediately. Symptoms may include agitation; coma; confusion; deep sleep or loss of consciousness; difficulty breathing; diminished mental alertness; hallucinations; hot or cold skin; large and unchanging pupils; sedation; seizures; shaking; sleeplessness; slow heartbeat; slowed breathing.Proper storage of chlorpheniramine/codeine/pseudoephedrine liquid:
Store chlorpheniramine/codeine/pseudoephedrine liquid at room temperature, between 68 and 77 degrees F (20 and 25 degrees C). Store away from heat, moisture, and light. Do not store in the bathroom. Keep chlorpheniramine/codeine/pseudoephedrine liquid out of the reach of children and away from pets.
- If you have any questions about chlorpheniramine/codeine/pseudoephedrine liquid, please talk with your doctor, pharmacist, or other health care provider.
- Chlorpheniramine/codeine/pseudoephedrine liquid is to be used only by the patient for whom it is prescribed. Do not share it with other people.
- If your symptoms do not improve or if they become worse, check with your doctor.
- Check with your pharmacist about how to dispose of unused medicine.
This information should not be used to decide whether or not to take chlorpheniramine/codeine/pseudoephedrine liquid or any other medicine. Only your health care provider has the knowledge and training to decide which medicines are right for you. This information does not endorse any medicine as safe, effective, or approved for treating any patient or health condition. This is only a brief summary of general information about chlorpheniramine/codeine/pseudoephedrine liquid. It does NOT include all information about the possible uses, directions, warnings, precautions, interactions, adverse effects, or risks that may apply to chlorpheniramine/codeine/pseudoephedrine liquid. This information is not specific medical advice and does not replace information you receive from your health care provider. You must talk with your healthcare provider for complete information about the risks and benefits of using chlorpheniramine/codeine/pseudoephedrine liquid.
Disclaimer: This information should not be used to decide whether or not to take this medicine or any other medicine. Only your health care provider has the knowledge and training to decide which medicines are right for you. This information does not endorse any medicine as safe, effective, or approved for treating any patient or health condition. This is only a brief summary of general information about this medicine. It does NOT include all information about the possible uses, directions, warnings, precautions, interactions, adverse effects, or risks that may apply to this medicine. This information is not specific medical advice and does not replace information you receive from your health care provider. You must talk with your healthcare provider for complete information about the risks and benefits of using this medicine.