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Medicine

Phenylephrine

Uses temporarily relieves these symptoms due to a cold minor aches and pains headache nasal and sinus congestion sore throat cough due to minor throat and bronchial irritation temporarily reduces fever

Medication guideLabel updated 2026-01-08

Selected manufacturer label information, organised into consistent sections by Sofidex. Read the full label at DailyMed ↗

Boxed warning

WARNING: ADDICTION, ABUSE, AND MISUSE; LIFE-THREATENING RESPIRATORY DEPRESSION; ACCIDENTAL INGESTION; ULTRA-RAPID METABOLISM OF CODEINE AND OTHER RISK FACTORS FOR LIFE-THREATENING RESPIRATORY DEPRESSION IN CHILDREN; PROMETHAZINE AND RESPIRATORY DEPRESSION IN CHILDREN; MEDICATION ERRORS; INTERACTIONS WITH DRUGS AFFECTING CYTOCHROME P450 ISOENZYMES; CONCOMITANT USE WITH BENZODIAZEPINES OR OTHER CNS DEPRESSANTS; NEONATAL OPIOID WITHDRAWAL SYNDROME Addiction, Abuse, and Misuse Promethazine and Phenylephrine HCl and Codeine Phosphate Oral Solution exposes patients and other users to the risks of opioid addiction, abuse, and misuse, which can lead to overdose and death. Reserve Promethazine and Phenylephrine HCl and Codeine Phosphate Oral Solution for use in adult patients for whom the benefits of cough suppression are expected to outweigh the risks, and in whom an adequate assessment of the etiology of the cough has been made. Assess each patient’s risk prior to prescribing Promethazine and Phenylephrine HCl and Codeine Phosphate Oral Solution, prescribe Promethazine and Phenylephrine HCl and Codeine Phosphate Oral Solution for the shortest duration that is consistent with individual patient treatment goals, monitor all patients regularly for the development of addition or abuse, and refill only after reevaluation of the need for continued treatment. Life-Threatening Respiratory Depression Serious, life-threatening, or fatal respiratory depression may occur with use of Promethazine and Phenylephrine HCl and Codeine Phosphate Oral Solution. Monitor for respiratory depression, especially during initiation of Promethazine and Phenylephrine HCl and Codeine Phosphate Oral Solution therapy or when used in patients at higher risk. Accidental Ingestion Accidental ingestion of even one dose of Promethazine and Phenylephrine HCl and Codeine Phosphate Oral Solution, especially by children, can result in a fatal overdose of codeine. Ultra-Rapid Metabolism of Codeine and Other Risk Factors for Life-Threatening Respiratory Depression in Children Life-threatening respiratory depression and death have occurred in children who received codeine. Most of the reported cases occurred following tonsillectomy and/or adenoidectomy, and many of the children had evidence of being an ultra-rapid metabolizer of codeine due to a CYP2D6 polymorphism. Promethazine and Phenylephrine HCl and Codeine Phosphate Oral Solution is contraindicated in children younger than 12 years of age and in children younger than 18 years of age following tonsillectomy and/or adenoidectomy. Avoid the use of Promethazine and Phenylephrine HCl and Codeine Phosphate Oral Solution in adolescents 12 to 18 years of age who have other risk factors that may increase their sensitivity to the respiratory depressant effects of codeine.

Drug facts

Used for
  • Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution is a prescription medicine used in adults to temporarily treat cough and upper respiratory symptoms, including a stuffy nose (nasal congestion), that you can have with allergies or a common cold. Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution contains 3 medicines, promethazine, phenylephrine, and codeine. Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution is an antihistamine. Phenylephrine is a decongestant. Codeine is an opioid (narcotic) cough suppressant.
  • Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution is a federal controlled substance (C - V) because it contains codeine that can be abused or lead to dependence. Keep Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution in a safe place to prevent misuse and abuse. Selling or giving away Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution may harm others, and is against the law. Tell your healthcare provider if you have ever abused or been dependent on alcohol, prescription medicines or street drugs.
How to take it
  • Take Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution exactly as your healthcare provider tells…
  • Take Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution by mouth only.
  • Do not take more than 30 mL of Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution in 24 hours.
Do not take if
  • have severe breathing problems (respiratory depression).
  • have a blockage (obstruction) in your bowel such as a paralytic ileus.
  • take a medicine called a monoamine oxidase inhibitor (MAOI).
  • Do not take an MAOI within 14 days after you stop taking Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution.

What it is used for

  • Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution is a prescription medicine used in adults to temporarily treat cough and upper respiratory symptoms, including a stuffy nose (nasal congestion), that you can have with allergies or a common cold. Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution contains 3 medicines, promethazine, phenylephrine, and codeine. Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution is an antihistamine. Phenylephrine is a decongestant. Codeine is an opioid (narcotic) cough suppressant.
  • Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution is a federal controlled substance (C - V) because it contains codeine that can be abused or lead to dependence. Keep Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution in a safe place to prevent misuse and abuse. Selling or giving away Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution may harm others, and is against the law. Tell your healthcare provider if you have ever abused or been dependent on alcohol, prescription medicines or street drugs.

The most important thing to know

Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution is not for children under 18 years of age.

Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution can cause serious side effects, including:

  • Addiction, abuse and misuse. Taking Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution or other medicines that contain an opioid can cause addiction, abuse, and misuse, which can lead to overdose and death. This can happen even if you take Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution exactly as prescribed by your healthcare provider. Your risk of addiction, abuse, and misuse is increased if you or a family member has a history of drug or alcohol abuse or addiction, or mental health problems.
    • Do not share your Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution with other people.
    • Keep Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution in a safe place away from children.
  • Life-threatening breathing problems (respiratory depression). Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution can cause breathing problems (respiratory depression) that can happen at any time during treatment and can lead to death. Your risk of breathing problems is greatest when you first start taking Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution, are taking other medicines that can cause breathing problems, have certain lung problems, are elderly or have certain other health problems. Children are at higher risk for respiratory depression. Breathing problems can happen even if you take Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution exactly as prescribed by your healthcare provider.

Call your healthcare provider or get emergency medical help right away if anyone taking Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution, or your breastfeeding baby, has any of the symptoms below:

Keep Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution in a safe place away from children. Accidental use of even 1 dose of Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution, especially by a child, is a medical emergency and can cause breathing problems (respiratory depression) which can lead to death. If a child accidentally takes Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution, get emergency help right away.

  • Overdose and death due to medicine dosing errors. Overdose and death can happen if you measure the wrong dose of Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution. Always use an accurate milliliter (mL) measuring device to measure the correct amount of Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution. Do not use a household teaspoon to measure your medicine. You may accidentally take too much. You can ask your pharmacist for the measuring device you should use and how to measure the correct dose.
  • Breathing problems (respiratory depression) that can lead to death and opioid withdrawal can happen if you start taking or stop taking other medicines while taking Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution, including:
    • certain antibiotics
    • certain medicines to treat a fungal infection
    • certain medicines to treat Human Immunodeficiency Virus (HIV)-1 infection, Acquired Immune Deficiency Syndrome (AIDS), or Hepatitis C
    • rifampin
    • carbamazepine
    • phenytoin
  • Severe drowsiness, breathing problems (respiratory depression), coma, and death can happen in adults and children who take Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution with benzodiazepines, gabapentinoids (gabapentin or pregabalin), or other central nervous system depressants, including alcohol.
  • Do not take any benzodiazepines or medicines that can cause drowsiness or sleepiness during treatment with Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution. Ask your healthcare provider for a list of these medicines if you are not sure.
  • Do not drink alcohol during treatment with Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution.
  • Opioid withdrawal in a newborn. Use of Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution during pregnancy can cause withdrawal symptoms in your newborn baby that could be life-threatening if not recognized and treated. You should not take Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution if you are pregnant. Tell your healthcare provider right away if you are pregnant or think you may be pregnant.

How to take it

  • Take Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution exactly as your healthcare provider tells you to take it. Do not change your dose without talking to your healthcare provider.
  • Take Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution by mouth only.
  • Do not take more than 30 mL of Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution in 24 hours.
  • Take Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution using an accurate milliliter (mL) measuring device. If you do not have one, ask your pharmacist to give you a measuring device to measure the correct amount of Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution. Do not use a household teaspoon to measure your medicine. You may accidently take too much.
  • Do not overfill the measuring device.
  • Rinse your measuring device with water after each use.
  • If you take too much Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution, call your healthcare provider or go to the nearest hospital emergency room right away.
  • Tell your healthcare provider if your cough does not get better within 5 days of treatment with Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution.

Side effects, and when to stop

Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution may cause serious side effects, including:

  • Bowel problems including severe constipation or stomach pain. See “Who should not take Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution?”
  • Increased pressure in your head (increased intracranial pressure). Avoid the use of Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution if you have a head injury or have been told that you have changes in the tissue of your brain (brain lesions) or increased pressure in your head.
  • Neuroleptic malignant syndrome (NMS) which can lead to death. Tell your healthcare provider right away if you have any of the following symptoms of NMS:
  • Uncontrolled spasms of your face and neck muscles, or muscles of your body, arms, and legs (dystonia). These muscle spasms can cause abnormal movements and body positions, and speech problems. These spasms may happen after one dose of Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution. Tell your healthcare provider if you have any of these symptoms.
  • Heart and blood vessel (cardiovascular) and central nervous system (CNS) effects. Cardiovascular and CNS effects can happen in some people during treatment with Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution, including trouble sleeping (insomnia), dizziness, weakness, tremors, temporary increases in blood pressure, and abnormal heart beats (arrhythmias). Call your healthcare provider right away if you have any of these symptoms.
  • Increased risk of seizures in people with seizure disorders. If you have a seizure disorder, Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution may increase how often you have seizures.
  • Low blood pressure. A sudden drop in blood pressure can happen in some people during treatment with Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution and this may cause you to feel dizzy, faint, lightheaded, or weak, especially when you stand up (orthostatic hypotension). Your risk of having this problem may be increased if you take Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution with certain other medicines that lower blood pressure. If you have any of these symptoms while taking Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution, sit or lie down. Do not change your body position too fast. Get up slowly from sitting or lying down.
  • Adrenal gland problems. Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution can cause serious and life-threatening adrenal gland problems. Your healthcare provider may do blood tests to check for adrenal gland problems. Call your healthcare provider right away if you have any of these symptoms:
  • Changes in laboratory blood levels, including high blood sugar and false pregnancy test reading.

The most common side effects of Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution include:

These are not all the possible side effects of Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution.

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Who should not take it

Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution is not for children under 18 years of age.

Do not take Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution if you:

  • have severe breathing problems (respiratory depression).
  • have a blockage (obstruction) in your bowel such as a paralytic ileus.
  • take a medicine called a monoamine oxidase inhibitor (MAOI).
    • Do not take an MAOI within 14 days after you stop taking Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution.
    • Do not start taking Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution if you stopped taking an MAOI in the last 14 days.
  • have a type of glaucoma called “narrow angle glaucoma”.
  • have problems with your urinary tract or difficulty urinating (urinary retention).
  • have severe high blood pressure (hypertension), certain heart problems (severe coronary artery disease), or narrowing of blood vessels to your legs or arms (peripheral vascular insufficiency).
  • are allergic to promethazine, phenylephrine, codeine, or any of the ingredients in Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution. See the end of this Medication Guide for a complete list of ingredients in Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution. You may have an increased risk of an allergic reaction to Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution if you are allergic to certain other opioid medicines.

Ask your healthcare provider if you have any questions about this information.

Before you take Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution, tell your healthcare provider about all of your medical conditions, including if you:

  • are pregnant or plan to become pregnant. Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution can harm your unborn baby.
  • are breastfeeding or plan to breastfeed. Codeine passes into your breast milk and can cause serious side effects in your baby including increased sleepiness, breathing problems (respiratory depression), and death. It is not known if promethazine or phenylephrine can pass into your breast milk. You and your healthcare provider should decide if you will take Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution or breastfeed. You should not do both. See “What should I avoid while taking Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution?”
  • plan to have children. Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution may affect the ability to have a child in females and males (fertility problems). It is not known if these fertility problems will be reversible, even after you stop taking Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution.

Tell your healthcare provider about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements.

Taking Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution with certain other medicines can cause side effects or affect how well Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution or the other medicines work. Do not start or stop taking other medicines without talking to your healthcare provider.

Especially tell your healthcare provider if you:

  • take pain medicines such as opioids (narcotics).
  • take cold or allergy medicines that contain antihistamines or cough suppressants.
  • drink alcohol.
  • take muscles relaxants.
  • take certain medicines used to treat mood, anxiety, psychotic or thought disorders, or depression, including monoamine oxidase inhibitors (MAOIs), tricyclics, selective serotonin reuptake inhibitors (SSRIs), selective serotonin-norepinephrine reuptake inhibitors (SNRIs), or antipsychotics.
  • take medicines to lower your blood pressure.
  • take water pills (diuretics).
  • take medicines called “anticholinergics” used to treat asthma, chronic obstructive pulmonary disease (COPD), or stomach problems.
  • take medicines called “sympathomimetics” used to treat asthma, chronic obstructive pulmonary disease (COPD), or low blood pressure.
  • take ergot containing medicines used to treat severe headaches or migraines.
  • take medicines called alpha and beta blockers.

Ask your healthcare provider if you are not sure if you take one of these medicines.

What to avoid

  • Avoid driving a car or operating machinery during treatment with Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution. Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution can cause you to be drowsy, slow your thinking and motor skills, and affect your vision.
  • Do not drink alcohol during treatment with Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution. Drinking alcohol with Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution can increase your chances of having serious side effects, accidental overdose, and cause death.

Avoid the use of Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution if you:

  • are pregnant. Use of Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution during pregnancy can cause withdrawal symptoms in your newborn baby that could be life-threatening if not recognized and treated. Tell your healthcare provider right away if you are pregnant or think you may be pregnant.
  • are breastfeeding. Use of Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution while breastfeeding can cause severe breathing problems (respiratory depression) in your breastfed infant that could be life-threatening.

Storing it

  • Store Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution at room temperature between 68°F to 77°F (20°C to 25°C).
  • Store Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution in a tightly closed container, in a dry, cool place away from heat or direct sunlight.
  • Keep Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution and all medicines out of the reach of children.

How should I dispose of Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution?

Remove unused Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution from the container and mix it with an undesirable, non-toxic substance such as cat litter or used coffee grounds to make it less appealing to children and pets. Place the mixture in a container such as a sealed plastic bag and throw it away in the household trash. You can also follow your state or local guidelines on how to safely throw away Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution.

General information about the safe and effective use of Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution.

Medicines are sometimes prescribed for purposes other than those listed in a Medication Guide. Do not use Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution for a condition for which it was not prescribed. Do not give Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution to other people, even if they have the same symptoms that you have. It may harm them.

You can ask your pharmacist or healthcare provider for information about Promethazine and Phenylephrine Hydrochloride and Codeine Phosphate Oral Solution that is written for health professionals.

Cite this page

NLM

sofidex [Internet]. Daloreum; c2026. Phenylephrine; [reviewed 2026 Aug 2; cited 2026 Nov 10]. Available from: https://sofidex.com/patients/medicines/phenylephrine

APA 7th

sofidex. (2026, August 2). Phenylephrine. Daloreum. Retrieved November 10, 2026, from https://sofidex.com/patients/medicines/phenylephrine

AMA 11th

Phenylephrine. sofidex. Reviewed August 2, 2026. Accessed November 10, 2026. https://sofidex.com/patients/medicines/phenylephrine

The cited date is today’s, because a citation records when you read the page. The reviewed date is when a clinician last checked it.