Oleander, silver and inositol/IP6 would be a very good combination. Doseage should be adjusted for body weight and consider that the noral adult doseage for humans equates to about 150 pounds on average. I would not worry about the amount of colloidal silver and note that maximum dosage for OPC can be as much as 5 capsules twice a day, if tolerable but the dose should be started very small and worked up gradually. Inositol/IP6 maximum doseage can be 12-16 capsules daily for humans.
For more suggestions, see my suggested anti-cancer protocol for dogs and other animals (and note that some items such as onions and garlic are contraindicated for cats and should be avoided):
All the best
NO - a HUMAN can handle up to 10 caps a day, if tolerable, of the SOPC, but NOT a small animal like cat! A cat could handle only a fraction of that amount using the 150 pounds average human weight as a guidleline and reducing according to the cat's weight. And I note that humans begin with only two caps a day at most and then work their way up gradually. If it were me, I would start out with perhaps 1/4 a cap with an average sized cat and work up to perhaps a full cap.
Half a cap a day of the Inositol/IP6 to a cap or more should be fine. Perhaps even more. Inositol/IP6 is likely less critical to manage the doseage as is oleander, which contains cardiac glycosides in tiny amounts and can have diarrhea/loose stools, nausea and other relatively mild side effects with some folks and some animals until tolerance is built up.
All the best,
I'm glad that she is listening to you and starting her on Sutherlandia OPC and Inositol/IP6. Also follow Tony's advice above. The results, as with people, are individual. Some get fast results but on the average it takes time. Usually, it takes two to three months to start seeing results.
SDK is correct in what he says and a raw diet is of utmost importance. This will aid in her healing. If she doesn't want to go to the trouble of preparing the food, which isn't difficult at all, really, she can opt for the BARF Diet which she can get online. Also, animals who take Sutherlandia OPC respond much better and do not suffer side effects when on a raw diet. The best advice I can give her is to follow the diet described in the Anti-Cancer Protocol for Dogs that Tony described above. As Tony said, keep in mind that some items that are suggested for dogs are toxic to cats, such as garlic.
Vaccinations are the cause of many cancers in dogs and cats and this is a crying shame. In the guise of keeping our furkids healthy, all they do is compromise their health.
I am glad that your neighbor is at least receptive to trying natural healing not only for her furkid, but also for herself. Maybe you have opened a door for her to learn and achieve optimum health.