Earlier quoted context omitted.
The left enantiomer of methamphetamine (exact same chemical formula and structure, just mirror symmetry) is also an OTC decongestant.
Vicks
Should DayQuil Be Legal?
51–60 of 322 posts
Re: Should DayQuil Be Legal?
#52The more general deeply-entrenched golden goose here is branding , which applies to much more than OTC medicines. Make it so the active ingredients have to be listed prominently - the largest text on the front of the product package - and these concerns diminish greatly. It would also fix the homeopathic snake oil as well, which has started showing up as options in previously-reputable medicine aisles. So at any rate…
Making the active ingredients prominent is a good start but not sufficient. As the article points out, the word "phenylephrine" looks/sounds similar enough to "pseudoephedrine" to broadly fool the population.
They should probably have to split up large words with dashes or even spaces "phenyl-ephrine" "psuedo-ephedrine". Maybe even "phenyl-eph-rine" "psuedo-eph-edrine". One authoritative list published by the FDA (they already keep a list of what's allowed to be sold OTC in the first place, right?) of how the active ingredient names have to be distinctly stylized to best inform.
Re: Should DayQuil Be Legal?
#53I just can't get super upset about this. Sure, OTC companies are duping customers with marketing, but what's new about that? As the person holding the money, it's my job to look at what is effective and what the active ingredients are in any given product. Or ask my doctor/nurse/pharmacist what to do, if I can't be bothered to make the effort myself. When I want to get irrationally angry about something in a departme…
It's similar to the shampoo example (a huge selection of borderline useless products that make money purely because of marketing) but with a minor safety consideration, too.
Re: Should DayQuil Be Legal?
#54I am convinced that many people ask LLM's "give me a citation URL" and don't bother to read it.
Re: Should DayQuil Be Legal?
#55I just can't get super upset about this. Sure, OTC companies are duping customers with marketing, but what's new about that? As the person holding the money, it's my job to look at what is effective and what the active ingredients are in any given product. Or ask my doctor/nurse/pharmacist what to do, if I can't be bothered to make the effort myself. When I want to get irrationally angry about something in a departme…
You ask what is new about this, and the answer is, in 2026 context: nothing, but compared to the year 2000: plenty. Regulators used to issue fines for this behavior, and for worst offenders, regulators used to shut them down. Lying to customers is illegal in most jurisdiction, it used to have consequences, and it should do so again.
Re: Should DayQuil Be Legal?
#56This article uses the trick where you pick studies that support your argument and ignore all of the studies that disagree with it. There are other studies where Dextromethorphan improves both objective and subjective measures of coughing: https://pubmed.ncbi.nlm.nih.gov/37232330/ They also picked a study that shows honey outperforming Dextromethorphan but ignored all the studies that show honey performing similarly o…
An interesting new drug is Auvelity, where Dextromethorphan is proposed to help stimulate neurotropic growth factor to help the brain repair itself, and similar related drugs like dextromethorphan and ketamine and other NMDA receptor antagonists are innovative drugs to help prevent Alzheimer's.
Auvelity is interesting, but the exact mechanism of action is not very clear.
Auvelity is a combination of two drugs: Dextromethorphan and Bupropion. Bupropion, aka Wellbutrin, is an antidepressant by itself. In Auvelity it helps alter how Dextromethorphan is processed by the body, but we can't rule out that it contributes to the antidpressant effect. I mean it's literally an antidepressant.
Dextromethorphan has a lot of interactions and gets a lot of comparisons to ketamine because it has NMDA affinity, but if you look at the table of receptors it interacts with the serotonin receptor is one of the strongest interactions. It is a potent serotonin reuptake inhibitor, which is also known to have antidepressant effects. It also has some sigma receptor interactions which might be doing something significant.
The NMDA interactions get all of the attention because if you put "ketamine" in the headline you get a lot more attention, but NMDA may be much lower on the list or even negligible for this combo.
Re: Should DayQuil Be Legal?
#57This article uses the trick where you pick studies that support your argument and ignore all of the studies that disagree with it. There are other studies where Dextromethorphan improves both objective and subjective measures of coughing: https://pubmed.ncbi.nlm.nih.gov/37232330/ They also picked a study that shows honey outperforming Dextromethorphan but ignored all the studies that show honey performing similarly o…
An interesting new drug is Auvelity, where Dextromethorphan is proposed to help stimulate neurotropic growth factor to help the brain repair itself, and similar related drugs like dextromethorphan and ketamine and other NMDA receptor antagonists are innovative drugs to help prevent Alzheimer's.
N=1, I've had very positive experiences with DIY Auvelity, using 150mg Buproprion XR that I'm RX'ed with 60mg OTC DXM-only tablets.
Re: Should DayQuil Be Legal?
#58This article uses the trick where you pick studies that support your argument and ignore all of the studies that disagree with it. There are other studies where Dextromethorphan improves both objective and subjective measures of coughing: https://pubmed.ncbi.nlm.nih.gov/37232330/ They also picked a study that shows honey outperforming Dextromethorphan but ignored all the studies that show honey performing similarly o…
The only cold and cough medicine that really truly works is the over-the-counter stuff, pseudoephedrine, works amazing for me. I usually pick up a box of the stuff when school starts in the fall and I go through half a box of it by the following summer.
Re: Should DayQuil Be Legal?
#59I just can't get super upset about this. Sure, OTC companies are duping customers with marketing, but what's new about that? As the person holding the money, it's my job to look at what is effective and what the active ingredients are in any given product. Or ask my doctor/nurse/pharmacist what to do, if I can't be bothered to make the effort myself. When I want to get irrationally angry about something in a departme…