Supplying and recording pseudoephedrine

Abstract

Pseudoephedrine is an oral sympathomimetic decongestant that causes vasoconstriction of dilated nasal vessels and reduces swelling of nasal congestion. However, it is also a precursor of methamphetamine, more commonly known as 'speed' or 'ice', a stimulant that can be swallowed, snorted, injected or smoked.