Summary
The FDA has proposed phasing out oral phenylephrine, a common decongestant in cold medicines like Sudafed PE and DayQuil, after studies showed it is no more effective than a placebo.
The drug, ineffective when swallowed due to breakdown in the stomach, remains usable in nasal sprays.
Alternatives include pseudoephedrine, nasal sprays, and steroid treatments like Flonase.
The regulatory process to remove phenylephrine could take over a year, but experts argue removing ineffective options will help consumers choose better remedies for congestion. Drugmakers are expected to challenge the proposal.
They spend more money and chemistry making pseudoephedrine hard to make into meth then they do on the everything else in the medicine. It’s also why meth labs tend to blow up when they didn’t with with standard pseudoephedrine.
Interesting. Do you know of any articles on the topic?
Look up “Impede technology”. There are newer methods now but that’s an example.
https://www.sciencedirect.com/science/article/pii/S0731708517331904