He Took a 'Double Dosed' Tab and Was Tripping for Months
A reader's story about a tab that wasn't what it was sold as — and the months of after-effects that followed, including a vape cart that brought the whole trip back.

A reader from Virginia Beach bought two tabs from an acquaintance who swore they were double dosed. The first one gave him the greatest experience of his life. Four or five days later, he took the second one — and ended up crawling blind down the stairs, praying in bed for twelve hours, and dealing with the aftermath for close to a year.
This is his story, shared with us as a warning for anyone who thinks a street tab is ever a sure thing.
The tab that wasn't LSD
He'd been tripping heavily through the pandemic, mostly acid, and buying from someone he'd grown up with — more an acquaintance than a friend. When the guy sold him tabs branded as double dosed, he took the first one in the dark of his own room and loved it: full visuals, the whole experience he was chasing.
The second tab was different, and he knew it almost immediately.
"I take this tab and I go like completely blind," he told us. "I'm crawling down the stairs to go take a shower 'cause I'm like, maybe the shower will help me." It didn't. He barely made it back to bed, where he lay for 12 to 14 hours — not hallucinating in a fun way, but stuck in what he calls the worst feeling of his life, a pit of anxiety in his stomach that wouldn't let go. When he came out of it, his conclusion was blunt: "This one was definitely not LSD. It was some sort of research chemical, something different."
The next morning he was still off. He went to a fast food restaurant, went home, and finally slept for real. And then he made the mistake that turned a bad night into a bad year.
The cart that brought the trip back
He woke up, started playing Guitar Hero, and hit his brother's cart. Sitting in front of a window with a cross in the frame, the window started waving intensely in front of his face. "The cart brought the trip back," he said — more intense than ever, with a full-blown panic attack on top. He was throwing up, blind again, and "really, really intense for the next month, damn near."
He told his parents the next day that he'd messed up and needed help. He went to the hospital, where he says they gave him hydroxyzine — an antihistamine sometimes used for acute anxiety — and it helped some, but not enough. He stayed sober from weed for a stretch because, as he put it, weed is a psychedelic too and it amplified everything. Then he started smoking again in 2021 and had another big freak-out. The cycle has repeated since, with each episode a little less intense.
He still deals with the after-effects. He describes it as "more like HPPD" — hallucinogen persisting perception disorder — where even today, if he looks at gravel on a curb, the shapes start moving and swirling. It's manageable now. It wasn't for a long time.
What's actually going on here
There are three separate things happening in this story, and it's worth untangling them.
Street tabs are never what they claim to be. When someone says a tab is double dosed, they're selling a vibe, not a fact. The reader's own theory — that it was a research chemical rather than LSD — is the common one: a lot of what's sold as acid isn't, and some of the chemicals sold in its place produce a much rougher, more physical, more panicked experience. This is why harm-reduction groups push reagent test kits so hard.
HPPD is real, but it's not what everyone gets. Hallucinogen persisting perception disorder is a recognized condition where visual disturbances stick around after the trip ends. Most people who take psychedelics never get it, and the symptoms vary wildly — from subtle trailing to the kind of persistent visual noise this reader describes. It's worth knowing exists, not worth fearing as inevitable.
Weed can absolutely re-trigger a bad experience. This reader hit a cart the day after a traumatic trip and watched it all come back stronger. That's his experience, and it's a known pattern: cannabis interacts with the same receptors and can amplify anxiety or perceptual changes in someone who's already primed by a rough trip. For him, the lesson landed hard enough that he now smokes almost nothing but low-potency flower.
The honest check
Everything above is one person's account, not medical consensus. We can't verify what was actually on that tab — neither could he. HPPD symptoms are subjective, and his description of "still withdrawing" off his childhood Adderall script is his framing, not a diagnosis. The takeaway isn't that psychedelics are too dangerous to touch; it's that unverified drugs are a lottery, and the ticket he bought came with a long tail.
Practical takeaways
- Test your tabs if you're in a position to. A reagent kit is cheap insurance against "double dosed" marketing.
- Start with a small amount of anything new. A tab can't be un-taken.
- If a trip goes bad, tell someone. This reader went to the hospital the next day and says telling his parents was the right call.
- If you've had a traumatic psychedelic experience, be gentle with cannabis afterward. It can bring the anxiety back — low-THC flower is the safer way to ease back in.
- Persistence of visual disturbances after a trip is a thing you can talk to a doctor about. You're not crazy, and you're not alone.
Disclaimer: This article shares one person's experience and is not medical or legal advice. If you're struggling after a psychedelic experience, reach out to a healthcare provider.
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