ninjapirateroberts
Bluelighter
- Joined
- Jan 21, 2023
- Messages
- 323
Vyvanse (Lisdexamfetamine) is a prodrug which metabolizes into d-amphetamine.
Once orally ingested, Lisdexamfetamine is absorbed in your stomach and GI track and the molecule enters your bloodstream. Once in the bloodstream, an enzyme called trypsin cleaves the Lysine amino acid from the amphetamine molecular structure
3 hours after ingesting Vyvanse (Lisdexamfetamine) levels of d-amphetamine are at peak serum levels in your bloodstream and have a duration of action approx 8-10 hours (total duration 10-14 hours), featuring a slow and steady increase of d-amphetamine, then slowly fades away 10 hours later
Dexedrine IR & Spansule XR are vastly superior
Adderall IR / XR beads are also superior to Vyvanse. The 25% levo-amph in Adderall is actually very advantageous to the dextro rotary stereo isomer. It helps the d-amph last longer and increase / release more dopamine in the CNS
Ritalin (Methylphenidate) & Cocaine have a near identical mechanism of action and are very euphoric and effect CNS stimulants
Phenmetrazine was also a heavy hitter, apparently more euphoric than i.v. Methamphetamine (Methedrine/Desoxyn)
Biphetamine 20mg (Black Beauties) were a smash (basically Adderall 75% d / 25% l)
Desbutal (Methamphetamine & Pentobarbital)
Dexamyl (d-amphetamine & Amobarbitol)
In the golden era of pharmaceuticals / 1950’s America they had insane stimulants
Methylphenidate & Phenmetrazine
Benzedrine/Dexedrine/Methedrine
Methedrine 20mg i.v. glass vials for injection
Dexamyl/Desbutal/Biphetamine
Valium (Diazepam) was the reigning supreme Benzodiazepine …..still is today, unmatched benzo, all others trash
Dilaudid & Demerol were the most commonly used euphoric opioids, Dilaudid more of a pure opioid, Demerol like an opioid + Cocaine/Ritalin…..i.v. Vials were a highly sought after item for recreational use
I think Methylphenidate (MPH) and Cocaine have near identical mechanisms because both MPH and Cocaine are only dopamine and norepinephrine reuptake inhibitors. In contrast, d-amphetamine is both a reuptake inhibitor and also releasing agent. But cocaine is very cardiotoxic.