Am I ethically obligated to extend the life of my dog with life-extension treatments about to hit the market?
Recently, a company called "Loyal" received pre-approval status from the FDA regarding their life extension hormone treatment that has show early promise in extending the lifespan of dogs that weigh > 40lbs. Big dogs have extremely high levels of a particular hormone associated with increased cellular aging and the treatment...
I replied in a different comment with a similar view. I think the issues are more substance-specific with other alternatives being available to consider.
GHB is fantastic in terms of it's very limited negative health effects but it's dosing can cause some issues as you mentioned. Those mentioned risks make it ideal for high-trust, safe situations but less ideal for broad replacement of the usage contexts of alcohol. I think there are other options that can and should be explored though.