For the Public Good – Pseudoephedrine and Phenylephrine

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Ever heard of these two drugs? Pseudoephedrine and Phenylephrine. One is a vasoconstrictor, the other a vasopressor. One is a precursor chemical used to manufacture methamphetamines, and that’s where the trouble begins.

A bit of history: pseudoephedrine has been used for years as a nasal decongestant. It’s effective in temporarily relieving congestion and stuffiness, and works well for a lot of people. Unfortunately for pseudoephedrine, it can be reduced using a variety of chemical methods to form methamphetamine, a potent, addictive drug. As a result, legislation passed in 2005 has restricted the sale of pseudoephedrine, and many retailers, drug manufacturers, and distributors have substituted phenylephrine in their cold remedies.

What’s the problem with this? At least for me, and for others, phenylephrine is ineffective as a decongestant. I’ve tried it a number of times, and it has no effect whatsoever on me. Why? According to Wikipedia and subsequent sources, phenylephrine doesn’t activate a norephedrine response in the body, and is metabolized by monoamine oxidase through ingestion, with up to 2/3 of the drug being broken down before it gets into the body. The net effect? Phenylephrine doesn’t clear a stuffy nose for me, making it a waste of money.

So here’s the question: does the public good of reducing the supply of pseudoephedrine for potential misuse outweigh the cost of a drug which has questionable effectiveness? Does the mitigation of potential criminal activity balance out with increased discomfort from illness?

If you buy a decongestant containing phenylephrine, don’t be surprised if it doesn’t have the same bang for the buck that pseudoephedrine-based decongestants did.

Side tip: even though it’s marketed for treatment of allergies, drugs like loratadine (marketed under the name Claritin) are also helpful for suppressing the histamine response for colds, and is effective for me against a stuffy nose. Disclosure: I work in student loans, not medicine or pharmacy. I have no expertise in this stuff at all besides what works for me – consult someone who’s actually qualified before self-treating with drugs.

Side tip 2: even though directions for making methamphetamine are readily available on the internet, I’d suggest taking a course or two in organic chemistry first. Using the directions available, you’re more likely to blow yourself up than make something that will give you a high. It’d be like giving you this set of directions for making a cake: flour, sugar, milk, eggs, water, cocoa powder. Mix and bake. Good luck actually getting a cake out of that.

Comments

9 responses to “For the Public Good – Pseudoephedrine and Phenylephrine”

  1. Whitney Avatar

    I developed a hiatal hernia in college. Tagamet, a histamine blocker, helped quite a bit. Once, however, I took too much, and ended up with this huge rash everywhere- and the only cure was sudafed-an antihistamine, to help with the hives I was getting. Moral of the story- knowing a little about how pharmaceuticals work is a good thing, and prevents trips to the dermatologist. Also, knowing what drug does what in these over the counter combos will save you money and frustration when the drug that “breaks up the mucous” does squat to dry it up.

    1. Undrgrndgirl813 Avatar
      Undrgrndgirl813

      sudafed is not an antihistamine…

  2. Whitney Avatar

    I developed a hiatal hernia in college. Tagamet, a histamine blocker, helped quite a bit. Once, however, I took too much, and ended up with this huge rash everywhere- and the only cure was sudafed-an antihistamine, to help with the hives I was getting. Moral of the story- knowing a little about how pharmaceuticals work is a good thing, and prevents trips to the dermatologist. Also, knowing what drug does what in these over the counter combos will save you money and frustration when the drug that “breaks up the mucous” does squat to dry it up.

  3. John R. Carman Avatar

    I’m currently taking Claritin-D, which contains loratadine as well as pseudoephedrine, and is available behind the pharmacy counter without a prescription. I’m taking the medication for my allergies, but I also have a cold, and the medication is working for both.

  4. John R. Carman Avatar

    I’m currently taking Claritin-D, which contains loratadine as well as pseudoephedrine, and is available behind the pharmacy counter without a prescription. I’m taking the medication for my allergies, but I also have a cold, and the medication is working for both.

  5. Kevin Kennedy-Spaien Avatar

    Doubly annoying is the fact that pseudoephedrine is a replacement drug itself. One used to be able to get still better medicine until the Great Ephedra Ban! I want my old formula Sudafed (1990’s vintage)!

  6. Kevin Kennedy-Spaien Avatar

    Doubly annoying is the fact that pseudoephedrine is a replacement drug itself. One used to be able to get still better medicine until the Great Ephedra Ban! I want my old formula Sudafed (1990’s vintage)!

  7. Trysta Avatar
    Trysta

    I just made my own tincture from Ephedra Sinica (Ma Huang) which I bought in bulk when it was legal.  3 teeny drops from a dropper bottle and asthma/congestion is gone. Pseudoephedrine, though not as strong as Ephedra, is the only OTC drug that worked for nasal congestion. Phenylephrine is filler crap and a huge lie.  The government banned my asthma rescue inhalers so I’ve taken up kitchen chemistry myself. For me, a simple congestion problem can land me in ER w/no insurance.  Interesting that FDA’s claim the ban on my inhaler is due to it being “aerosol”. My bathroom spray is aerosol… I can’t have a rescue inhaler, but I can still use aerosol spray after I take a dump.  That room smelling fresh is way more important than letting me have my meds right? Screw the FDA.

  8. dichasium Avatar
    dichasium

    Are they both an anti-histamine?

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