Why do you feel like giving a
liver supplement. First get in touch with the liver to know how it's feeling through some liver function profile. Unnecessary things should be avoided in pets.
Next Steps
Try checking his
liver enzymes and phenobarbitone levels before adding anything. Your vet knows what to add or stop at a given point of time.
Health Tips
Keep screening your pet periodically. Your pet will be more happy and healthy. Hope this helps. Thanks