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Codimal DM (Generic Phenylephrine)

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Why is this medication prescribed?

Codimal DM, containing Dextromethorphan, Phenylephrine, and Pyrilamine, is typically prescribed for the temporary relief of symptoms associated with upper respiratory conditions such as the common cold, flu, allergies, or sinusitis.

Dextromethorphan is a cough suppressant that helps to alleviate coughing. Phenylephrine is a decongestant that works by narrowing blood vessels in the nasal passages, helping to reduce congestion. Pyrilamine is an antihistamine that helps to relieve symptoms such as sneezing, itching, watery eyes, and runny nose caused by allergies.

How should this medicine be used?

Codimal DM should be used exactly as directed by your healthcare provider or as instructed on the medication label. Here are some general guidelines for using Codimal DM:

  • Dosage: Take the medication exactly as prescribed by your healthcare provider. The dosage may vary depending on factors such as age, weight, medical condition, and response to treatment. Do not exceed the recommended dosage.
  • Administration: Codimal DM is usually taken orally with or without food. Shake the bottle well before each use to ensure the medication is evenly mixed.
  • Measuring Device: Use the measuring device provided with the medication to ensure accurate dosing. Do not use household teaspoons or tablespoons, as they may not provide the correct measurement.
  • Timing: Take Codimal DM at evenly spaced intervals as prescribed by your healthcare provider. Do not take more frequent doses than recommended.
  • Avoidance of Certain Substances: Avoid consuming alcohol or other medications that may cause drowsiness while taking Codimal DM, as it can enhance the sedative effects of the medication.
  • Duration of Use: Use Codimal DM for the shortest duration necessary to relieve your symptoms. Do not continue using it for longer than recommended unless advised by your healthcare provider.
  • Storage: Store Codimal DM at room temperature away from moisture, heat, and light. Keep the medication out of reach of children and pets.
  • Follow-up: If your symptoms persist or worsen despite taking Codimal DM, or if you experience any adverse effects, contact your healthcare provider for further evaluation and guidance.

Always consult your healthcare provider if you have any questions or concerns about the proper use of Codimal DM or if you are unsure about anything related to your medication regimen.

Other uses for this medicine

  • Cough suppression in conditions not typically associated with upper respiratory symptoms, such as chronic cough or cough due to lung conditions like bronchitis or asthma.
  • Management of symptoms related to allergic reactions, such as itching or hives.
  • Relief of symptoms associated with certain viral or bacterial infections, where the symptoms overlap with those commonly seen in upper respiratory conditions.

What special precautions should I follow?

Special precautions should be observed when using Codimal DM, including:

  • Allergies: Inform your healthcare provider of any allergies you have, especially if you are allergic to any of the active ingredients in Codimal DM or similar medications.
  • Medical Conditions: Disclose any medical conditions you have, including but not limited to high blood pressure, heart disease, diabetes, thyroid disorders, glaucoma, prostate problems, liver disease, kidney disease, or urinary retention. Certain medical conditions may affect the safety or efficacy of Codimal DM.
  • Pregnancy and Breastfeeding: If you are pregnant, planning to become pregnant, or breastfeeding, discuss the potential risks and benefits of using Codimal DM with your healthcare provider before taking the medication.
  • Interactions: Inform your healthcare provider about all prescription, over-the-counter, and herbal medications you are taking, as well as any dietary supplements. Codimal DM may interact with other medications, potentially leading to adverse effects or reduced efficacy.
  • Driving and Operating Machinery: Codimal DM may cause drowsiness or dizziness, especially when combined with alcohol or other central nervous system depressants. Avoid driving, operating heavy machinery, or engaging in activities that require mental alertness until you know how the medication affects you.
  • Avoiding Alcohol: Limit or avoid alcohol consumption while taking Codimal DM, as it can increase the risk of drowsiness and other side effects.
  • Overdose: Taking more than the recommended dosage of Codimal DM can lead to overdose, which can cause serious symptoms such as severe drowsiness, dizziness, hallucinations, rapid heart rate, seizures, and even death. Seek immediate medical attention if an overdose is suspected.

Always follow your healthcare provider’s instructions and read the medication label carefully before using Codimal DM. If you have any questions or concerns about its use, don’t hesitate to consult your healthcare provider for guidance.

What special dietary instructions should I follow?

Regarding dietary instructions, there are no specific dietary restrictions associated with Codimal DM. However, it’s essential to maintain a balanced diet and stay hydrated while taking the medication to support your overall health and aid in recovery from the underlying condition.

What should I do if I forget a dose?

If you forget to take a dose of Codimal DM, take it as soon as you remember. However, if it’s almost time for your next scheduled dose, skip the missed dose and continue with your regular dosing schedule. Do not double the dose to catch up. Taking extra medication can increase the risk of side effects and complications. If you’re unsure about what to do, consult your healthcare provider or pharmacist for guidance.

What side effects can this medication cause?

Codimal DM, like any medication, may cause side effects in some individuals. Common side effects associated with Codimal DM include:

  • Drowsiness: One of the most common side effects of Codimal DM is drowsiness or sedation. This effect may impair your ability to perform tasks requiring mental alertness, such as driving or operating machinery.
  • Dizziness: Some people may experience dizziness or lightheadedness while taking Codimal DM, especially when standing up quickly from a sitting or lying position.
  • Dry Mouth: Codimal DM can cause dryness of the mouth due to its antihistamine component. Drinking plenty of fluids may help alleviate this symptom.
  • Nausea or Upset Stomach: Some individuals may experience gastrointestinal discomfort, such as nausea, vomiting, or stomach upset, while taking Codimal DM.
  • Constipation: Codimal DM may cause constipation in some people due to its anticholinergic effects, which can slow down bowel movements.
  • Blurred Vision: Blurred vision or difficulty focusing may occur as a side effect of Codimal DM, particularly in individuals susceptible to anticholinergic effects.
  • Urinary Retention: In rare cases, Codimal DM may cause difficulty urinating or urinary retention, particularly in individuals with pre-existing prostate problems.
  • Increased Heart Rate: Phenylephrine, one of the ingredients in Codimal DM, is a sympathomimetic agent that can elevate heart rate and blood pressure in some individuals.
  • Allergic Reactions: Although rare, some people may experience allergic reactions to Codimal DM, which can manifest as skin rash, itching, hives, swelling of the face or throat, or difficulty breathing. Seek immediate medical attention if you experience any signs of an allergic reaction.
  • Other Side Effects: Other less common side effects of Codimal DM may include nervousness, restlessness, headache, sweating, or difficulty sleeping (insomnia).

It’s important to note that not everyone will experience these side effects, and some individuals may tolerate Codimal DM well without any adverse reactions. If you experience any persistent or severe side effects while taking Codimal DM, or if you have concerns about its safety or efficacy, consult your healthcare provider for further evaluation and guidance.

What should I know about storage and disposal of this medication?

When it comes to storing and disposing of Codimal DM, follow these guidelines:


  • Store Codimal DM at room temperature away from moisture, heat, and light.
  • Keep the medication in its original container, tightly closed, and out of reach of children and pets.
  • Avoid storing Codimal DM in the bathroom or near sinks, as moisture and humidity can affect its stability.
  • Do not freeze Codimal DM unless directed to do so by your healthcare provider or pharmacist.
  • Check the expiration date on the medication label and discard any expired medication appropriately.


  • Dispose of unused or expired Codimal DM safely to prevent accidental ingestion by children, pets, or others.
  • Follow any specific disposal instructions provided by your healthcare provider, pharmacist, or local waste disposal facility.
  • Do not flush Codimal DM down the toilet or pour it down the drain unless instructed to do so by authorized guidelines.

In case of emergency/overdose

  • In case of an emergency or suspected overdose of Codimal DM, contact your local poison control center (in the United States, you can call 1-800-222-1222) or seek immediate medical attention.
  • Be prepared to provide information about the type and amount of medication ingested, as well as the individual’s age, weight, and any symptoms experienced.

What other information should I know?

  • Keep Codimal DM out of the reach of children and pets to prevent accidental ingestion.
  • Avoid consuming alcohol while taking Codimal DM, as it may increase the risk of side effects such as drowsiness and dizziness.
  • Inform your healthcare provider about all medications you are taking, including prescription drugs, over-the-counter products, and herbal supplements, to prevent potential interactions.
  • Follow your healthcare provider’s instructions regarding the dosage, frequency, and duration of use of Codimal DM. Do not exceed the recommended dose or take it for longer than prescribed.
  • If you have any questions or concerns about Codimal DM or its use, consult your healthcare provider or pharmacist for guidance.

By following these storage, disposal, emergency procedures, and other essential guidelines, you can ensure the safe and effective use of Codimal DM.

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