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Pecgen DMX
Generic name: dextromethorphan and guaifenesin
Brand names: Alka-Seltzer Plus Maximum Strength, Children Giltuss Cough and Chest Congestion, Children's Delsym Cough+Chest Congest DM, Children's Robitussin Cough and Chest Congestion DM, Coricidin HBP Chest Congestion and Cough, Delsym Cough Plus Chest Congestion DM, Diabetic Tuss DM Maximum Strength, Fenesin DM IR, Geri-Tussin DM, Giltuss Cough and Chest Congestion, Giltuss Diabetic Cough and Cold, Guaiasorb DM, G-Zyncof, Kindermed Kids' Cough and Congestion, Max Tussin Cough + Chest Congestion DM, Max Tu
What is Pecgen DMX?
Pecgen DMX is a combination medicine that helps treat cough and chest congestion caused by allergies, the common cold, or the flu.
Pecgen DMX may also be used for other reasons not mentioned in this medication guide.
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How should I take Pecgen DMX?
Use this medicine exactly as directed on the label, or as your doctor prescribes. Cold or cough medicine is meant for short-term use only.
Your dose may change if you switch to a different brand, strength, or form of this medicine. To avoid medication errors, use it exactly as directed on the label or as prescribed by your doctor.
Do not give this medicine to a child without medical advice. Follow all directions when giving this medicine to a child. Do not use this medicine to make a child sleepy. Misusing this medicine may cause death in very young children.
Measure liquid medicine with the measuring device that comes with it (not a kitchen spoon).
You may need to shake the liquid before measuring a dose. Follow all directions on the label.
Swallow the extended-release tablet whole and do not crush, chew, or break it.
Dissolve the effervescent tablets in at least 4 ounces of water. Stir and drink it right away. You can add more water to the glass, swirl it, and drink again.
Sprinkle the granules directly onto your tongue and swallow them right away.
Drink extra fluids to help loosen congestion and keep your throat moist while taking this medicine.
Call your doctor if your symptoms do not improve after 7 days, or if you have a fever, rash, or headaches.
Follow the storage instructions that come with this medicine. Your pharmacist can give you more information about how to store it.
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Warnings
Do not use this medicine if you are currently taking or have taken an MAO inhibitor in the last 14 days. A serious drug interaction could happen. MAO inhibitors include isocarboxazid, linezolid, methylene blue injection, phenelzine, and tranylcypromine.
This section was rewritten for readability and reviewed for meaning.
Before taking this medicine
You should not take Pecgen DMX if you are allergic to it.
Do not use Pecgen DMX if you are currently taking or have taken an MAO inhibitor in the last 14 days. This could cause a dangerous drug interaction. MAO inhibitors include isocarboxazid, linezolid, methylene blue injection, phenelzine, and tranylcypromine.
Ask a doctor or pharmacist if this medicine is safe for you to use if you have:
- a cough with mucus; or
- asthma, emphysema, or chronic bronchitis.
This medicine may contain phenylalanine and could be harmful if you have phenylketonuria (PKU).
Ask a doctor before using this medicine if you are pregnant or breastfeeding.
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Pecgen DMX side effects
Get emergency medical help if you notice any signs of an allergic reaction, such as hives, trouble breathing, or swelling of your face, lips, tongue, or throat.
Pecgen DMX can cause serious side effects. Stop using Pecgen DMX and contact your doctor immediately if you experience:
- changes in mood;
- severe headache; or
- severe dizziness or anxiety, feeling like you might faint.
Common side effects of Pecgen DMX may include:
- dizziness, drowsiness;
- trouble sleeping (insomnia);
- diarrhea; or
- feeling nervous, restless, anxious, or irritable.
This is not a complete list of side effects, and others may happen. Contact your doctor for medical advice about side effects. You can report side effects to the FDA at 1-800-FDA-1088.
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What happens if I miss a dose?
Pecgen DMX can be taken as needed. If you miss a dose while following a dosing schedule, just skip that dose. Do not take two doses at once.
This section was rewritten for readability and reviewed for meaning.
What happens if I overdose?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.
Avoid driving or doing anything dangerous until you know how Pecgen DMX will affect you. Your reactions could be impaired.
Ask a doctor or pharmacist before taking other cough or cold medicines that may have similar ingredients.
Drinking alcohol with this medicine can cause side effects.
This section was rewritten for readability and reviewed for meaning.
What other drugs will affect Pecgen DMX?
Ask a doctor or pharmacist before using any other medicines that can make you sleepy (like opioid medication, sleep medicine, a muscle relaxer, or medicine for anxiety or seizures). Inform your doctor about all other medicines you are taking. This includes prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible interactions are mentioned here.
This section was rewritten for readability and reviewed for meaning.
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Content is provided for education and is not medical advice. See our medical disclaimer.