2 fairly obscure psychedelics (label used tentatively for one of them)

[Allylbenzene]

Phenoxybenzamine (top) and Benzydamine (below).

Phenoxybenzamine is an alpha-blocker with weak 5-HT2A activity, whilst Benzydamine is an NSAID with potential cannabinoid interactions (and suspected 5-HT2A activity also). Both structures have ample room for improvement.

Due to the structural analogy between benzydamine and LSD, it has been speculated that benzydamine could act as a serotoninergic 5-HT2A receptor agonist
...
The compound is used, in high doses, as a psychotropic substance for oral administration, having similar properties to LSD.

- 10.3390/ph16040566