Sudafed Dosage

The recommended dosage of Sudafed for immediate-release tablets is two tablets every four to six hours, not to exceed eight tablets in 24 hours. For extended-release Sudafed 12 Hour tablets, the recommended dosage is one tablet every 12 hours. For the extended-release 24 Hour tablets, the recommended dose is one tablet once a day.

Sudafed Dosage: An Introduction

The recommended dose of Sudafed® (pseudoephedrine hydrochloride) will vary, depending on a number of factors, including:
 
  • The particular product
  • Your age
  • Other medications you are taking
  • Other medical conditions you may have.
     
As is always the case, do not adjust your dosage unless your healthcare provider specifically instructs you to do so.
 
(The information in this article applies to original Sudafed, now found behind the pharmacy counter. For information about dosing of the reformulated Sudafed products that do contain phenylephrine instead of pseudoephedrine, see Sudafed PE Dosage.)
 

Dosing for Adults and Older Children

The recommended dosage for immediate-release Sudafed tablets in adults and children ages 12 years and older is two tablets (a total of 60 mg) every four to six hours, not to exceed eight tablets in 24 hours.
 
For extended-release Sudafed 12 Hour tablets, the recommended dosage for adults and children 12 years old and older is one tablet (120 mg) every 12 hours. For extended-release Sudafed 24 Hour tablets, the dosage is one tablet (240 mg) once a day.
 

Sudafed Dosing for Young Children

The recommended dosage for immediate-release Sudafed tablets in children 6 to 11 years old is one tablet (30 mg) every four to six hours, not to exceed four tablets in 24 hours.
 
For Sudafed Nasal Decongestant Liquid, the recommended dose for children 6 to 11 years old is two teaspoonfuls (10 mL, 30 mg) every four to six hours, not to exceed four doses in 24 hours. For children four to five years old, the recommended dose is one teaspoonful (5 mL, 15 mg) every four to six hours, not to exceed four doses in 24 hours. Do not use in children younger than four years old.
 
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Sudafed Medication Information

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