Pseudoephedrine is an over-the-counter decongestant that is also used to make methamphetamine illegally. Regulations have been implemented to restrict pseudoephedrine sales and track purchases in order to curb meth production. These regulations led to a 50% decline in meth lab seizures between 2005-2006 according to the Drug Enforcement Agency. Additional measures are needed to further address the problem such as drug reformulations and stricter penalties.