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Manufacturer
Haleon US Holdings LLC
ATC Code
C01CA26
Source
OPENFDA_NDC
USDailyMed:Pseudoephedrine
AU:B2
R01BA02(WHO)
AU:S3(Pharmacist only) Largely tracked nationwide via "Project STOP" to avoid purchases in large quantities.Use of Project STOP is mandatory in all states and territories except Victoria and TasmaniaBR:Class D1(Drug precursors)CA:OTCRemoved from theNDSin 2024, for both combination and single ingredient preparations.NZ: Class C3-OTCUK:P (Pharmacy medicines) (only 720mg can be sold at a time)US:OTC, but is tracked viaNPLExin many states and must be purchased directly from a pharmacy.EU:OTC (often maximum 720mg in total)SE: Rx-only
(1S,2S)-2-(methylamino)-1-phenylpropan-1-ol
90-82-4Y
7028
DB00852Y
6761Y
7CUC9DDI9F
D08449Y
CHEBI:51209Y
ChEMBL1590Y
DTXSID0023537
Interactive image
O[C@@H](c1ccccc1)[C@@H](NC)C
InChI=1S/C10H15NO/c1-8(11-2)10(12)9-6-4-3-5-7-9/h3-8,10-12H,1-2H3/t8-,10+/m0/s1YKey:KWGRBVOPPLSCSI-WCBMZHEXSA-NY
Pseudoephedrine, sold under the brand nameSudafedamong others, is asympathomimeticmedication which is used as adecongestantto treatnasal congestion.It has also been usedoff-labelfor certain other indications, like treatment oflow blood pressure.At higher doses, it may produce various additional effects includingstimulant,appetite suppressant,andperformance-enhancingeffects.In relation to this, non-medical use of pseudoephedrine has been encountered.The medication is takenby mouth.
Side effects of pseudoephedrine includeinsomnia, elevatedheart rate, increasedblood pressure,restlessness,dizziness,anxiety, anddry mouth, among others.Rarely, pseudoephedrine has been associated with seriouscardiovascular complicationslikeheart attackandhemorrhagic stroke.Some people may be more sensitive to itscardiovasculareffects.Pseudoephedrine acts as anorepinephrine releasing agent, thereby indirectly activatingadrenergic receptors.As such, it is an indirectly actingsympathomimetic.Pseudoephedrine significantly crosses into thebrain, but has someperipheral selectivitydue to itshydrophilicity.Chemically, pseudoephedrine is asubstituted amphetamineand is closely related toephedrine,phenylpropanolamine, andamphetamine.It is the (1S,2S)-enantiomerofβ-hydroxy-N-methylamphetamine.
Along with ephedrine, pseudoephedrine occursnaturallyinephedra, which has been used for thousands of years intraditional Chinese medicine.It was firstisolatedfrom ephedra in 1889.Subsequent to itssynthesisin the 1920s, pseudoephedrine was introduced for medical use as a decongestant.Pseudoephedrine is widely availableover-the-counter(OTC) in both single-drug andcombinationpreparations.Availability of pseudoephedrine has been restricted starting in 2005 as it can be used to synthesizemethamphetamine.Phenylephrinehas replaced pseudoephedrine in many over-the-counteroraldecongestant products.However, oral phenylephrine appears to be ineffective as a decongestant.In 2023, pseudoephedrine was the 292nd most commonly prescribed medication in the United States, with more than 400,000 prescriptions.In 2023, the combination withbrompheniramineanddextromethorphanwas the 281st most commonly prescribed medication in the United States, with more than 700,000 prescriptions.In 2023, the combination withloratadinewas the 300th most commonly prescribed medication in the United States, with more than 400,000 prescriptions.