Trimix ureathral injection

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Wondering if I could use trimix and inject ( not with needle of course , eye dropper or something like that ) in the urethra . Tried Muse some years ago , worked so so , I currently use 50 unit injection , great hour plus erection . Curious if the trimix will absorbe similar to muse , just might like to use a small amount if I think I might get lucky , just to get a semi hard on .