How Long Does Pseudoephedrine Stay in Your System?

Answer

Pseudoephedrine is a sympathomimetic drug used as a nasal decongestant or stimulant. Topically, it should not be used for longer than three days. How long it will stay in your system does vary. The half-life period of pseudoephedrine is 4.3 to 8 hours. This is described as the time it takes the drug to lose half of its pharacologic activity. Therefore, it is likely that it will take approximately 8.6 to 16 hours for it to clear out of your system.
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Pseudoephedrine: Dosage
Take this medicine by mouth with a glass of water. Follow the directions on the package or prescription label. Take your medicine at regular intervals. Do not take your medicine more often than directed. Talk to your pediatrician regarding the More »
Source: healthline.com
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