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Chlorpheniramine, Pseudoephedrine, and Codeine Liquid

Generic name: Chlorpheniramine, Pseudoephedrine, and Codeine Liquid [ KLOR-fen-IR-a-meen, SOO-doe-e-FED-rin, & KOE-deen ]
Brand name: Phenylhistine DH
Drug class: Upper respiratory combinations

Medically reviewed by Drugs.com. Last updated on Oct 8, 2023.

Warning

For all patients taking this medicine:
  • This medicine has an opioid drug in it. Opioid drugs can put you at risk for addiction, abuse, and misuse. Misuse or abuse of chlorpheniramine, pseudoephedrine, and codeine liquid can lead to overdose and death. If you have questions, talk with your doctor.
  • This medicine has an opioid drug in it. Severe side effects have happened when opioid drugs were used with benzodiazepines or other drugs that may make you drowsy or slow your actions. This includes slow or troubled breathing and death. Benzodiazepines include drugs like alprazolam, diazepam, and lorazepam. Benzodiazepines may be used to treat many health problems like anxiety, trouble sleeping, or seizures. If you have questions, talk with your doctor.
  • Many drugs interact with chlorpheniramine, pseudoephedrine, and codeine liquid and can raise the chance of side effects like deadly breathing problems. Talk with your doctor and pharmacist to make sure it is safe to use chlorpheniramine, pseudoephedrine, and codeine liquid with all of your drugs.
  • Avoid alcohol or other drugs and natural products that slow your actions.
  • Get medical help right away if you feel very sleepy, very dizzy, or if you pass out. Caregivers or others need to get medical help right away if the patient does not respond, does not answer or react like normal, or will not wake up.
  • Very bad and sometimes deadly breathing problems have happened with chlorpheniramine, pseudoephedrine, and codeine liquid. Talk with the doctor.
  • Get medical help right away if you have slow breathing, shallow breathing, or trouble breathing.
Children:
  • This medicine is not for use in children younger than 18 years of age. The benefits of taking chlorpheniramine, pseudoephedrine, and codeine liquid for a cough due to allergies, a cold, or other infection do not outweigh the risks in children. If your child has been given chlorpheniramine, pseudoephedrine, and codeine liquid or if you have any questions, talk with your child's doctor.

Uses of Chlorpheniramine, Pseudoephedrine, and Codeine Liquid:

What do I need to tell my doctor BEFORE I take Chlorpheniramine, Pseudoephedrine, and Codeine Liquid?

This is not a list of all drugs or health problems that interact with chlorpheniramine, pseudoephedrine, and codeine liquid.

Tell your doctor and pharmacist about all of your drugs (prescription or OTC, natural products, vitamins) and health problems. You must check to make sure that it is safe for you to take chlorpheniramine, pseudoephedrine, and codeine liquid with all of your drugs and health problems. Do not start, stop, or change the dose of any drug without checking with your doctor.

What are some things I need to know or do while I take Chlorpheniramine, Pseudoephedrine, and Codeine Liquid?

How is this medicine (Chlorpheniramine, Pseudoephedrine, and Codeine Liquid) best taken?

Use chlorpheniramine, pseudoephedrine, and codeine liquid as ordered by your doctor. Read all information given to you. Follow all instructions closely.

What do I do if I miss a dose?

What are some side effects that I need to call my doctor about right away?

WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your doctor or get medical help right away if you have any of the following signs or symptoms that may be related to a very bad side effect:

What are some other side effects of Chlorpheniramine, Pseudoephedrine, and Codeine Liquid?

All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away:

These are not all of the side effects that may occur. If you have questions about side effects, call your doctor. Call your doctor for medical advice about side effects.

You may report side effects to the FDA at 1-800-332-1088. You may also report side effects at https://www.fda.gov/medwatch.

If OVERDOSE is suspected:

If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.

How do I store and/or throw out Chlorpheniramine, Pseudoephedrine, and Codeine Liquid?

Consumer Information Use and Disclaimer

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Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.