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Generic name: Medicated Tablets is dextromethorphan and Guaifenesin [DEX-troe-me-THOR-fan-and-gwye-FEN-e-sin]
The brand names are: Adult Cough DM, Children’s Giltuss Cough, and Chest Congestion. Children’s Delsym Cough + Chest Congest DM Children’s Robitussin Cough and Chest Children’s Robitussin Cough and Chest Congestion DM,

The class of drug: upper respiratory combinations

What is Phlemex?

Dextromethorphan is an effective cough suppressant. Guaifenesin is an expectorant. Phlemex is a mixture medicine that treats chest congestion and cough caused by commonly occurring flu and allergies.

Dextromethorphan cannot treat coughs resulting from cigarettes. There are a variety of varieties and brands of this medication, and not all of them are mentioned in this leaflet. Phlemex can also be employed for other purposes that are not covered in this guideline.

Side effects of Phlemex

Contact a medical professional immediately. If you are experiencing warning signs of an allergic response, such as symptoms of hives, difficulty breathing, and swelling of your lips, face, tongue, throat, or face,

Phlemex can cause severe adverse reactions. Stop taking Phlemex and contact your doctor immediately if you suffer from:

  • Mood shifts;
  • Severe headache that is severe or
  • Extreme disorientation and anxiety, and feeling as if you're going to pass out.

Common adverse effects of Phlemex could include:

  • Dizziness, drowsiness;
  • Sleep problems (insomnia);
  • Diarrhea; or
  • Being anxious, restless feeling anxious, restless, or anxious;.

This is not a comprehensive list of possible side effects, and other effects may also be present. Contact your physician to seek medical advice on adverse effects. You can report any adverse reactions to the FDA at 1-800-FDA-1088.


Don't take this medicine when you've taken an MAO inhibitor within the last 14 days, including linezolid, isocarboxazid, or methylene blue injections, phenelzine, rasagiline, and selegiline. tranylcypromine.

Prior to use this drug

Don't use Phlemex if you've used an MAO inhibitor within the last 14 days. A risky drug interaction may occur. MAO inhibitors include isocarboxazid linezolid, methylene blue injection rasagiline, phenelzine, and tranylcypromine.

Consult a pharmacist or doctor to determine if this medication is suitable for use if you are:

  • A cough that is mucus-filled; or
  • Asthma, emphysema, and chronic bronchitis.

Consult a physician before taking this medication if you are breastfeeding or pregnant. The medicine could contain phenylalanine. Make sure to read the label on the medicine if you suffer from phenylketonuria (PKU).

How to take Phlemex?

Follow the directions on the label or as directed by your physician. Cough or cough medication is meant for short-term use only until symptoms improve. Follow the instructions on the medication label regarding the administration of cold or cough medicine to children. Don't use the medication solely to induce sleepiness in a child. Death can occur through the misapplication of cough or cold medicine to children who are very young. Take care when measuring liquid medicines. Make use of the dosing syringe supplied or a dosage-measuring device (not an ordinary spoon).

You might need to shake the liquid prior to measuring a dose. Follow the directions on the labels. Suck this tablet with extended release, and don't crush, chew, or break it. Apply the granules directly to your tongue, and then swallow immediately. Drink more fluids to ease congestion and smooth your throat while taking this medication.

Consult your doctor if symptoms don't improve within 7 days or if you suffer from an itch, temperature, rash, or headache. If you are planning to undergo any kind of procedure, inform the surgeon in advance when you've had this medicine in the last couple of days. Keep it at room temperature, far from heat and moisture

What happens if I miss the dose?

Because Phlemex is only used for emergencies, it is possible that you are not following a regular dosing regimen. Do not miss any doses when it's time to take the next dose. Don't take two doses at once.

What happens if I overdose?

Get medical attention in an emergency or contact the poison help line at 1-800-222-1222.

What should be avoided?

Avoid driving and other hazardous activities until you are aware of the extent to which Phlemex can affect you. Your reaction could be affected. Alcohol consumption with this medicine may cause unwanted side effects. Consult a physician or pharmacist before taking any other cold or cough medications that contain similar components.

Interaction with other drugs

Beware of using this medicine in conjunction with other medications that can result in drowsiness or slow breathing (such as opioid medicines as well as a muscle relaxer or medicines to treat anxiety or seizures).

Consult a physician or pharmacist prior to using this medication if you're taking any other medications that include prescription or over-the-counter medications, vitamins, and herbal products. Certain medications can trigger unwanted or even dangerous reactions when taken together. Some interactions may not be mentioned in this medication guide.