A keen eye for the offbeat doesn’t usually require a trip to the gas station, but apparently, the corner quick-mart can double as a pharmacy—at least if your definition of medicine stretches to the experimental and unsanctioned. In reporting by the Associated Press, a curious little bottle, brightly colored and nestled among the energy shots, might contain what’s being dubbed “gas station heroin.” If that phrase makes you double-take next to the beef jerky display, you’re not alone.

The Sun Chronicle, sharing coverage of the same unfolding oddity, offers an apt summary: these supplements are widely available, technically illegal, and yet remain largely unregulated in much of the United States. So, what exactly is being sold beside checkout counters—and why is no one quite sure what’s in the bottle?

What Is This Stuff, Really?

At the heart of the mystery is tianeptine—a pharmaceutical that enjoys approval as an antidepressant in certain European and Asian nations, typically dispensed in low-dose tablets. By contrast, as highlighted in both the AP and The Sun Chronicle’s coverage, U.S. regulators have never cleared tianeptine for any use, and explicitly ban its addition to food, beverages, or supplements.

Yet here we are. Under-the-radar brands like Neptune’s Fix, Zaza, Tianaa, and TD Red market tianeptine-laced concoctions as supplements, energy boosters, or “cognitive enhancers,” all hiding in plain sight. Dr. Diane Calello, a medical toxicologist whose observations feature in the AP’s reporting, described these as falling into a regulatory gray area—supplements untested and unaudited by the standards applied to actual medicines.

There’s an uneasy roulette to using these products. Dr. Calello and colleagues documented a cluster of New Jersey emergency calls involving a tianeptine-containing product called Neptune’s Fix: rapid heartbeats, low blood pressure, and seizures were common. In that particular episode, over half the affected individuals ended up in critical care units. If that’s a boost, one wonders what “crash” might mean in this context.

The Allure and Risks—A Familiar Pattern?

Marketers push tianeptine products with bold, often unsubstantiated claims: relief from anxiety, pain, depression, or even opioid cravings. However, the FDA has taken clear aim at such suggestions, sending at least one warning letter to a supplement manufacturer whose packaging boasted its ability to curb cravings for opiates. Despite these assertions, no substantiated evidence underpins any of these benefits, and the FDA stance has not softened.

Described by Dr. Hannah Hays, as noted by the AP, the concern is that while tianeptine is not officially classified as an opioid, it acts on similar brain receptors, occasionally delivering effects that mimic those of oxycodone and other opioids. This similarity has drawn in some seeking a DIY escape hatch from opioid withdrawal or seeking euphoria—but the physiological risks, including dangerously depressed breathing, closely mirror those of the substances users are often trying to avoid. It’s a strange twist: the “over-the-counter” remedy that lands people back in the ER.

It is worth noting, as The Sun Chronicle also points out, that tianeptine’s unpredictable formulations may include synthetic cannabinoids or unlisted drugs, further muddying the waters for anyone relying on a familiar brand. Even previous users, Dr. Calello warns, have no clear idea what’s inside the next bottle—an unnerving prospect in the world of impulse purchases.

How Did the Shelves End Up Stocked?

One of the more peculiar aspects of the tianeptine saga is its legal liminality. The drug doesn’t appear on the federal Controlled Substances Act—so while it’s definitely banned from food and supplements, there’s no blanket prohibition. This odd status has left local and state governments to cobble together protections piecemeal. According to analysis circulated by the AP and echoed by The Sun Chronicle, about a dozen states, including Alabama, Georgia, Michigan, and Tennessee, have passed targeted bans or restrictions.

The result? Where restrictions took effect, like in Alabama, tianeptine-related calls to poison control began to ease after years of exponential growth. This suggests that policy can intervene, if imperfectly, in the market’s tendency to stock whatever sells. Still, in much of the country, these “energy shots” remain as available as ever—legal fallout lagging behind commercial innovation.

Trends in Use—and Harm

Figures presented in the AP’s reporting highlight the steep rise in national poison control center calls about tianeptine—a 525% increase between 2018 and 2023. In about 40% of cases, individuals required medical attention, with over half of those ending up in critical condition. Some experts, cited by The Sun Chronicle, theorize that both a rise in user numbers and an uptick in product potency are behind the escalating emergency reports.

One of the most unsettling details, tucked amid these reports, is that chemical analysis of some tianeptine drinks shows adulteration with other substances—synthetic cannabis among them. For buyers expecting garden-variety “supplements,” it’s a chemical dice roll. How many people, one wonders, even realize what they’re actually consuming?

Snack Counter Reflections

All of this is, in a way, a very modern American story. Our regulatory frameworks are sturdy when it comes to the familiar—prescriptions, packaged foods—but the supplement industry continues to serve as the wild frontier for inventive (if occasionally risky) chemistry. If a quasi-opioid can sneak onto the shelf beside sour candy and energy shots, what else might be out there, hiding behind an innocuous label?

Perhaps the bigger question isn’t just about what’s in the little bottle, but about why the regulatory net has so many holes in the first place. Is the supplement aisle morphing into the new unregulated pharmacy, or is this just an unusually dramatic instance of an old story—innovation racing ahead while oversight catches its breath? It would be nice to think that impulse buys come with only minor consequences, but in the curious case of countertop contraband, even that comfort might be a stretch.

Maybe that’s the strangest thing—how the most extraordinary hazards can sometimes look utterly ordinary, until you take a closer look.