Ah, just as I was saying. Ketamine can develop a habit in some but it's not a physical thing that can kill you if you quit like booze or opiates. For anti-depression you only need a bit once every 2 weeks. Some people (1 in 10 ish) are ULTRA sensitive and go straight to the K-hole for an unpleasant time on the lightest amount.

If you seek pain relief be careful. It's effective, makes you stupid for the first 15 minutes, and then you're good for some time. But if your body is in pain it's telling you something. If it's in chronic non-stop pain then it's relief. Be careful of a dependency and plan for the future (ie. don't let your supply get cut because then your life will be cut, aka lockdown, until you line up another source or few).

K is not like alcohol, as it doesn't make you stupid in the same way. It does slow you down at times. There's certainly about 50 shades of K, unlike the 8 to 16 bit general grey-scale of booze. Among those shades you can be blasted with crystal clarity - but Ketamine is a mistress of mystery, and even if you monitor your blood sugar, you never know what kind of trip you'll have, or how it will evolve. So self-operations are not recommended.

Pro tip: if you need so sober up someone on ketamine: give them sugar, preferably in liquid form, like you would a diabetic. Maple syrup, honey, soda, etc.

Second hand story: Bunch of folks at a hot tub party. A guy takes a chug from a bottle of water. Turns out it's pure ketamine. No one has ever done so much. They fed him maple syrup. He was fine.

Inject = 90%+ effective. Dry and snort = 80% effective. Swallow = 60% effective. I only ever snorted.

Ketamine is used on babies and the elderly because it's so safe (also vets who deal with a wide variety of animals of which they are not specific experts on). It does not suppress breathing or heart so overdosing is not really possible though walking into traffic or a pool or a plastic bag or something stupid is.

Medical grade nitrous oxide, aka dentists' laughing gas (not to be confused with racing car nitrous oxide mixed with a poison) and 5meo DMT don't have hangovers like other drugs. They aren't really useful for pain relief but those 3 are my faves, and just happen to be mostly safe and fun.