Seasonal allergys

Have been researching quercetin and bromelain for dogs allergys. They recommend 5 to 10 mg per lb. Twice a day.  Do you have any experience with this ?

Hello!  No; I'm afraid not, but I would strongly advise speaking to your vet.   If a plant extract is strong enough to do good then it can also has the capacity to do harm (sometimes in extremis eg digitalis) and should therefore be treated with respect.  Such drugs should be properly prescribed with the specific patients' need, welfare and it's combination with other drugs in mind.  Just as we do not prescribe conventional drugs for pets on this site, it is inappropriate to do the same with supplements or so-called 'alternative' medicines. I wonder whether your own vet would be prepared to refer you to someone with an interest in this area, who is also veterinary-certified and works with a foundation in science.  Such persons must be rare but the pandemic has made the world smaller in this regard as online consulting is now a 'thing.' We hope that you find what you are looking for and please do come back and let us know!

Ps it also.occurs to me that your vet may well have a knowledge of interest in this product themselves!

Certainly, companies who produce supplements that have good scientific evidence behind them, will often be keen to ensure that vets are aware of their product and the evidence base behind it.