I can obtain a vet ketamine like *ketaset. But I don't know which brand I should choose. Which will be more potent and safe for me?
The brand shouldn't matter. Just make sure you get the concentrations right.
According to the NIH, the concentration of a 10mL vial of KETASET is
100 mg/mL.
Here are the dosage ranges :
https://www.erowid.org/chemicals/ketamine/ketamine_dose.shtml
If we assume that you want to follow good practices, you'll start with the low dose of 0.15mg / lb
Let's also assume that you'll take that ketamine by insufflation, because that's the most common RoA.
So I don't know your weight, but let's assume you weight 150 lb.
This would mean that you'd have to take 0.15mg * 150 lb = 22.5mg.
So now you know that you'd need 22.5 mg.
Given that the concentration of the solution is 100mg / mL, you'd need to take 22.5mg / 100mg = 0.225 mL of ketaset.
So there you go, this it the way to determine an approximate dosage of ketamine based on your weight and the concentration of the ketamine solution.