
In a growing dog, yes- Flexivet Start, in an adult- Flexivet Go. I am using Start on an eight month old large breed and the results are fab! Below is the info providedby the manufacturer.
Flexivet is a two-step nutritional supplement for the management of arthritis in dogs and cats. Flexivet Start, the initial step, helps limit joint degradation and optimise cartilage synthesis. It's dual action is conferred by the combination of two chondroprotectors - chondroitin sulphate and glucosamine. It is the only veterinary joint supplement that contains chondroitin sulphate from a sustainable marine source. It is safe to supplement long term with Flexivet Start. However, once arthritis symptoms are under control, the dose of Flexivet Start may be reduced or alternatively, owners may wish to change to Flexivet Go. Flexivet Go, the maintenance step, is a highly cost effective long term joint supplement which can be used following Flexivet Start. Flexivet Go contains one chondroprotector - glucosamine,which helps to prolong the natural life of joints.
Good Luck!