Yes.
Let me see if I can break this down.
Cyanocobalamin is typically the injectable one and it is for gut/malabsorption, generally. It can also sometimes help with inappetence and give elderly cats a little lift to feel better. You can find out if her cyanocobalamin levels are low by doing the GI test. It comes as a pink solution that is injected weekly for 4-6 weeks, levels are rechecked, and then it’s given monthly. I don’t know the dosing because my vet has always just given us prefilled syringes and told me how often to give it so I never had the actual dosing bottle to see the concentration or convert it to mls.
Methylcobalamin is typically given for neuropathy in diabetic cats and for anemia in CKD cats with a hematocrit or PCV level above 20%. Below 20% requires bigger guns. For diabetic cats, the dosing of methylcobalamin, like Zobaline, is one 3 mg tab/daily. For CKD cats for anemia, the dosing is 250 mcg twice a day for oral. I do not know what the injectable dosing is, other than what you have quoted on Tanya’s, because I’ve only used the capsules.
It’s up to you and your vet what you dose them at, as Helen says.