Cosequin - for arthritis. Two gelcaps per day for two weeks, decrease to one gelcap per day after. Dosing decided by manufacturer's recommendation; think there may have been something based on weight (ie, a very big cat might need more). Eventually replaced that with
Dasuquin - for arthritis. Same dosing, etc, as Cosequin.
B-12 injections (cyanocobalamin) - .3 mL twice a week, for IBD. Started with the TAMU protocol, eventually segued to much larger than normal doses due to very long term IBD / B12 absorption problems.
B12 gelcaps (methylcobalamin) - 3mg once a day, to decrease probability and effect of diabetic neuropathy, diabetic retinopathy, etc, etc. (Gwyn was a long-term steroid user for IBD, so she sometimes had complications.) Dosage per normal board recommendations.
L-Lysine - immune system booster. 250mg twice a day, because long-term steroid use compromises the immune system and Gwyn was therefore extremely susceptible to UTIs. Dosage per normal board recommendations.
Potassium gluconate - 1/4 tsp once a day. For kidney disease. Dosage per vet.
Thiamine (B-1) - 25 mg once a day. 'Cause the oncologist said to give it to her, and said to give her that much. I can't remember the exact reasoning; I was kinda in shock at the time.