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Mucinex Instasoothe Sore Throat Plus Cough Relief

Generic name: dextromethorphan and hexylresorcinol

Last updated November 2, 2026 0 views
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What is Mucinex Instasoothe Sore Throat Plus Cough Relief?

Mucinex Instasoothe Sore Throat Plus Cough Relief is a combination medicine used for adults and children who are at least 6 years old. It helps treat cough, pain from a sore mouth or sore throat, and pain from canker sores.

Mucinex Instasoothe Sore Throat Plus Cough Relief may also be used for other reasons that are not mentioned in this medication guide.

This section was rewritten for readability and reviewed for meaning.

How should I use Mucinex Instasoothe Sore Throat Plus Cough Relief?

Use exactly as directed on the label, or as prescribed by your doctor. Cold or cough medicine is only for short-term use.

Do not give this medicine to children younger than 6 years old. Follow all directions when giving this medicine to a child. Do not use the medicine to make a child sleepy. Misuse of this medicine may cause death in very young children.

Allow the lozenge to dissolve slowly in the mouth. Do not use this medicine more often than directed on the label, or as prescribed by your doctor.

Call your doctor if your sore throat is severe and does not improve in 2 days and you have a fever, rash, swelling, nausea, vomiting, or headaches.

Stop using Mucinex Instasoothe Sore Throat Plus Cough Relief and call your doctor if your symptoms do not improve after 7 days and you have irritation, pain, redness, swelling, or cough that comes back with fever, rash, or a headache that does not go away.

Store at room temperature away from moisture and heat.

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Warnings

Do not use this medicine if you are using or if you have used an MAO inhibitor in the past 14 days. A dangerous drug interaction could occur.

MAO inhibitors include isocarboxazid, linezolid, methylene blue injection, phenelzine, and tranylcypromine.

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Before taking this medicine

Do not use Mucinex Instasoothe Sore Throat Plus Cough Relief if you are using or have used an MAO inhibitor in the past 14 days. A dangerous drug interaction could happen. 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:

  • asthma or COPD, or a cough caused by smoking, emphysema;
  • chronic bronchitis; or
  • a cough with mucus.

Ask a doctor before using this medicine if you are pregnant or breastfeeding.

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Mucinex Instasoothe Sore Throat Plus Cough Relief side effects

Get emergency medical help if you have signs of an allergic reaction: hives, difficulty breathing, swelling of your face, lips, tongue, or throat.

Mucinex Instasoothe Sore Throat Plus Cough Relief may cause serious side effects. Stop using Mucinex Instasoothe Sore Throat Plus Cough Relief and call your doctor immediately if you have:

  • irritation, redness;
  • swelling, pain; or
  • a cough that returns with fever, rash, or a headache that does not go away.

Common side effects of Mucinex Instasoothe Sore Throat Plus Cough Relief may include:

  • drowsiness;
  • constipation; or
  • feeling restless or excited (especially in children).

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

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What happens if I miss a dose?

Mucinex Instasoothe Sore Throat Plus Cough Relief is taken as needed. If you miss a dose while following a dosing schedule, just skip that dose. Do not take two doses at once.

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What happens if I overdose?

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

Drinking alcohol with Mucinex Instasoothe Sore Throat Plus Cough Relief can cause side effects.

Ask a doctor or pharmacist before using other cough or cold medicines that may contain similar ingredients.

Avoid driving or hazardous activity until you know how this medicine will affect you. Your reactions could be impaired.

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What other drugs will affect Mucinex Instasoothe Sore Throat Plus Cough Relief?

Ask a doctor or pharmacist before using any other medicines that can cause drowsiness (such as opioid medication, sleep medicine, a muscle relaxer, or medicine for anxiety or seizures). Tell your doctor about all other medicines you are using. This includes prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible interactions are included here.

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Related medicines

Before you take this medicine: the information on this page is general and may not cover your personal circumstances. Read the label supplied with your medicine and ask a pharmacist or doctor if you are unsure, especially if you are pregnant, breastfeeding, taking other medicines or managing a long-term condition.
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Content is provided for education and is not medical advice. See our medical disclaimer.