"Sinu-Rite is a safe, non-addictive, FDA registered natural remedy containing 100% homeopathic ingredients selected to relieve sinus and nasal congestion in pets."

"Homeopathic" remedies are diluted to the point of being GONE ... you would be paying $20 or so for a bottle of lactose tablets.

INGREDIENTS:

Nat mur (fancy name and explanation for sodium chloride)

Wind flower (30C) extremely diluted (30C is diluted to the point that you would have to administer gallons of remedy to get one molecule of the original extract)

Kali bich (30C) is a natural remedy (that's the fancy name for potassium bichromate ... http://en.wikipedia.org/wiki/Potassium_dichromate)

Glycorrhiza (3X) (extremely diluted licorice extract).

Lactose (what you are really giving the pet)

Apparently lazygardens is not a fan of homeopathy. While it seems odd, the dilution is the key. It certainly can work but you need to get the exact remedy for the problem and that can be difficult. You might see a holistic vet if you have one in your area.