Careful yes, but more specifically, a solid policy for anyone who is a fan of imbibing milligram active substances sometimes only a few years old and with zero human research, is to never just stick your finger into a baggie and lick it.
This is how people die, it's happened countless times. Dose with the aid of a milligram scale, always. 15mg is a pretty intoxicating dose already (at least it would be for me) so your stupidity in the moment can be forgiven and I'm glad you survived - but if this isn't the very first time you've done something like this, probably you've been cultivating bad and dangerous habits by being lazy about properly measuring your dosages in less sketchy situations - the end result being that the neural pathways towards this action were not too hard to find for your PCP addled brain. Please, don't eyeball, even if you think you're experienced enough to do so, your actions have the potential to influence not only those around you but also future versions of yourself, no matter how lazy you're feeling at the time or how benign the substance in question is.
Not meaning to just single you out btw simstim, I get it you were intoxicated and we all do dumb shit from time to time, just can't help myself making a PSA of sorts coz this kind of thing is still too common.
Anyway as far as the thread topic, I hear 3-MeO-PCP is the most similar to PCP itself sometimes although I can't independently vouch for this.
Personally I'd love to try 4-MeO-PCP but it doesn't seem to be around anymore. Hopefully one day.