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Guaiasorb DM (Generic Guaifenesin)

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Why is this medication prescribed?

Guaiasorb DM is typically prescribed as a cough suppressant and expectorant. It contains two active ingredients: dextromethorphan, which is a cough suppressant, and guaifenesin, which is an expectorant.

Dextromethorphan works by suppressing the cough reflex in the brain, reducing the urge to cough. Guaifenesin helps to loosen and thin mucus in the airways, making it easier to cough up and clear from the lungs.

Guaiasorb DM is commonly used to treat cough associated with respiratory infections such as the common cold, flu, bronchitis, or sinusitis.

How should this medicine be used?

Guaiasorb DM is typically used for the relief of cough due to minor throat and bronchial irritation, often associated with conditions such as the common cold or respiratory tract infections. Here’s how it is usually used:

  • Dosage: Follow the dosage instructions provided by your doctor or pharmacist. Dosage may vary depending on factors such as age, medical condition, and response to treatment.
  • Administration: Guaiasorb DM is usually taken orally, with or without food. It may come in the form of tablets, capsules, or liquid. Follow the specific instructions on the product label.
  • Measuring: Use a measuring device, such as a marked measuring spoon or cup, to ensure accurate dosage if you’re taking the liquid form. Avoid using a household spoon, as it may not provide the correct measurement.
  • Swallowing: Swallow tablets or capsules whole with a full glass of water. Do not crush, chew, or break them unless directed by your doctor or pharmacist.
  • Frequency: Take Guaiasorb DM as directed by your healthcare provider. It’s typically taken every 4 to 6 hours as needed for cough relief. Do not exceed the recommended dosage or frequency of administration.
  • Hydration: Drink plenty of fluids while using Guaiasorb DM to help loosen and thin mucus, making it easier to cough up. Adequate hydration also helps to prevent dehydration, which can worsen symptoms.
  • Duration: Use Guaiasorb DM for the shortest duration necessary to relieve your symptoms. If your cough persists or worsens after a few days of treatment, consult your doctor.
  • Precautions: Be cautious when taking Guaiasorb DM if you have certain medical conditions, such as asthma or chronic bronchitis, or if you are taking other medications. Consult your healthcare provider if you have any concerns or questions about its use.

Always read and follow the instructions provided with the medication. If you have any doubts or questions about how to use Guaiasorb DM, consult your doctor or pharmacist for clarification and guidance.

Other uses for this medicine

Besides treating cough and chest congestion, Guaiasorb DM may have off-label uses. However, it’s crucial to consult with a healthcare professional before using it for any other purposes.

What special precautions should I follow?

When using Guaiasorb DM, certain special precautions should be taken into consideration:

  • Medical History: Inform your doctor about your complete medical history, especially if you have any allergies, asthma, chronic bronchitis, emphysema, liver disease, kidney disease, or if you are pregnant or breastfeeding.
  • Interaction with Other Medications: Discuss with your doctor or pharmacist any other medications you are currently taking, including prescription drugs, over-the-counter medicines, herbal supplements, or vitamins. Some medications may interact with Guaiasorb DM, potentially affecting its effectiveness or increasing the risk of side effects.
  • Alcohol and Sedatives: Guaiasorb DM may cause drowsiness or dizziness. Avoid consuming alcohol or taking other sedatives while using this medication, as it may intensify these effects.
  • Driving and Operating Machinery: Due to the potential for drowsiness or dizziness, use caution when driving or operating heavy machinery while taking Guaiasorb DM. If you experience these side effects, refrain from performing activities that require mental alertness until you know how the medication affects you.
  • Avoid Overuse: Do not exceed the recommended dosage or frequency of administration, as it may increase the risk of side effects without providing additional benefit. Use Guaiasorb DM for the shortest duration necessary to relieve your symptoms.
  • Monitoring: If your symptoms persist or worsen despite treatment with Guaiasorb DM, consult your doctor for further evaluation and management.

Always follow your doctor’s instructions and read the medication label carefully before using Guaiasorb DM. If you have any questions or concerns about its use or precautions, consult your healthcare provider for personalized advice.

What special dietary instructions should I follow?

There are typically no specific dietary restrictions associated with Guaiasorb DM. However, it’s essential to maintain adequate hydration by drinking plenty of fluids while using this medication, as it can help loosen and thin mucus, making it easier to cough up.

What should I do if I forget a dose?

If you forget to take a dose of Guaiasorb DM, take it as soon as you remember. However, if it is almost time for your next dose, skip the missed dose and continue with your regular dosing schedule. Do not double the dose to catch up. If you are unsure about what to do, consult your healthcare provider or pharmacist for guidance.

What side effects can this medication cause?

Guaiasorb DM, like any medication, can potentially cause side effects in some individuals. Not everyone will experience these side effects, and their severity can vary from person to person. Common side effects associated with Guaiasorb DM may include:

  • Drowsiness: Guaiasorb DM can cause drowsiness or sedation, particularly at higher doses. This effect may impair your ability to perform tasks that require alertness, such as driving or operating machinery.
  • Dizziness: Some individuals may experience dizziness or lightheadedness while taking Guaiasorb DM.
  • Nausea and Vomiting: Upset stomach, nausea, or vomiting may occur in some people using Guaiasorb DM.
  • Headache: Headaches are a possible side effect of Guaiasorb DM.
  • Dry Mouth: Guaiasorb DM may cause dryness of the mouth or throat.
  • Stomach Upset: Some individuals may experience stomach discomfort or abdominal pain while taking Guaiasorb DM.
  • Allergic Reactions: Although rare, allergic reactions to Guaiasorb DM can occur. Symptoms of an allergic reaction may include rash, itching, swelling, severe dizziness, or trouble breathing. Seek immediate medical attention if you experience any signs of an allergic reaction.
  • Other Side Effects: Other less common side effects may also occur. If you experience any unusual or bothersome symptoms while taking Guaiasorb DM, contact your healthcare provider for advice.

It’s essential to report any side effects you experience to your doctor, even if they seem minor. Your doctor can evaluate your symptoms and determine whether any adjustments to your treatment plan are necessary. Additionally, if you have any concerns about potential side effects or the safety of Guaiasorb DM, discuss them with your healthcare provider before starting the medication.

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

Storage and disposal of Guaiasorb DM:


  • Store Guaiasorb DM at room temperature away from light and moisture.
  • Keep it out of reach of children and pets.
  • Do not store Guaiasorb DM in the bathroom or near the kitchen sink, where it might be exposed to moisture.
  • Follow any specific storage instructions provided on the medication packaging.


  • Dispose of unused or expired Guaiasorb DM properly according to local regulations.
  • Do not flush medications down the toilet unless instructed to do so. Check with your pharmacist or local waste disposal facility for guidance on proper disposal methods.

In case of emergency/overdose

  • In case of an overdose or emergency situation, such as accidental ingestion of a large amount of Guaiasorb DM, seek immediate medical attention or contact a poison control center.
  • Symptoms of overdose may include severe dizziness, drowsiness, nausea, vomiting, rapid heartbeat, confusion, hallucinations, seizures, or difficulty breathing.
  • Be prepared to provide information about the amount of Guaiasorb DM ingested, the time of ingestion, and any symptoms experienced.

What other information should I know?

  • Inform your healthcare provider about all medications, supplements, and herbal products you are taking before starting Guaiasorb DM to avoid potential interactions.
  • Avoid consuming alcohol or taking other sedatives while using Guaiasorb DM, as it may increase the risk of drowsiness or dizziness.
  • Do not exceed the recommended dosage or frequency of administration unless directed by your healthcare provider.
  • If your symptoms persist or worsen despite treatment with Guaiasorb DM, consult your doctor for further evaluation.
  • Keep all appointments with your doctor and laboratory while using Guaiasorb DM to monitor your progress and for any necessary tests.
  • Do not share Guaiasorb DM with others, even if they have similar symptoms. The medication may not be suitable for their condition or may interact with other medications they are taking.

By following these guidelines, you can ensure safe and effective use of Guaiasorb DM while minimizing the risk of adverse effects and complications. If you have any questions or concerns about storage, disposal, emergency procedures, or any other aspect of using Guaiasorb DM, consult your healthcare provider or pharmacist for further information and guidance.

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