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Generic name: pseudoephedrine [SOO-doe-ee-FED-rin]
Names of brands: Contac Cold, Nexafed, Silfedrine, Sudafed Children’s Nasal Decongestant SudoGest, Suphedrin, Drixoral Decongestant Non-drowsy
Drug class: decongestant

What is SudoGest?

SudoGest is a treatment for sinus and nasal congestion or obstruction of the tubes that draw fluid out of your ears, referred to as the eustachian tubes. SudoGest could be used for other purposes that are not mentioned in this guide.

Side effects of SudoGest 

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

SudoGest may cause serious side effects. Stop taking SudoGest and consult your physician immediately if you experience:

  • Dizziness;

  • Anxiety or

  • Sleep problems (insomnia).

The less serious side effects could be more likely, or there may be no side effects whatsoever. This isn't an exhaustive list of possible side effects, and other side effects could occur. Contact your physician to seek medical advice on the effects. You can report any side effects to the FDA at 1-800-FDA-1088.


Follow the instructions on the label and in the package. Follow the instructions exactly.

Before you take this drug

You shouldn't take SudoGest if you have an allergy to it. Don't use SudoGest if you've used an MAO inhibitor within the last 14 days. A potentially dangerous interaction with a drug could occur. MAO inhibitors include isocarboxazid, linezolid, methylene blue injection, rasagiline, phenelzine, tranylcypromine, and many others. Ask your doctor or pharmacist to determine if this medication is safe to use if you have ever used:

  • The heart condition (also known as excessive blood pressure);

  • Prostate enlargement and urination issues

  • Diabetes or
  • A thyroid condition.

Consult a physician before taking this medication if you are nursing or pregnant.

Related drugs

Epinephrine topical, pseudoephedrine, phenylephrine nasal, sodium chloride nasal, and Afrin

How to take SudoGest?

Follow the directions on the label or as directed by your physician. Do not give this medicine to a child who is less than 4 years of age. Always consult a physician before introducing any cold or cough medicine to children. Death can occur as a result of the misuse of cough and cold medications in very young children.

Drink a glass of water. Do not chew, crush, or break an extended-release tablet. Take it in whole. It is possible to shake up the suspension (liquid) thoroughly prior to measuring the dosage. You can measure liquid medicine using the dosing syringe supplied, a dosing spoon, or a medicine cup. If you don't own an instrument for measuring doses, you can ask your pharmacist for one. Contact your physician if your symptoms don't improve after seven days of treatment or you are suffering from a fever. Keep at room temperature, away from heat and moisture.

What happens If I miss a dose?

Because SudoGest is prescribed when it is needed, it is possible that you are not on a schedule of doses. If you're in a routine, you should take the dose you missed as soon as you can remember. Do not take your missed dose if it's nearing the time for the next dose scheduled. Don't use any extra medication to replace the missed dose.

What happens if I overdose?

Get medical attention in an emergency or contact the Poison Help line toll-free at 1-800-222-1222.

What should be avoided?

Beware of taking these medications if you consume diuretics, caffeine pills, or any other stimulant (such as ADHD medication). Combining a stimulant with a decongestant may increase the risk of negative side effects. Talk to a pharmacist or doctor prior to using any other cold or cough medication. A lot of combination medicines include SudoGest or a different decongestant. The combination of certain medications can result in you consuming too much of this kind of medication.

Interaction with other drugs

Other medications may interact with SudoGest, such as prescription and over-the-counter medicines, vitamins, and herbal products. Inform your physician about any other medications you take.




Prescription only

Pregnancy & Lactation

CSA Schedule*
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