DEA Disagrees with Firm's Meth-Resistant ClaimJames Shroba of the DEA wrote to Westport Pharmaceuticals saying DEA chemists were able to make meth using Zephrex-D.
St. Louis Firm: Meth Can't Be Made From Its DecongestantKey is a new type of pseudoephedrine from which cannot be extracted.
New Anti-Meth Pseudoephedrine Hits StoresSeveral pharmacies in the St. Louis area are now selling the first-ever pseudoephedrine-based decongestant that apparently cannot be used to make methamphetamine.
St. Louis First to Receive Tamperproof Decongestant Come November, local pharmacies will begin offering a new decongestant -- manufactured in Maryland Heights -- that cannot be converted into meth.

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