Aches & Discomforts – Aspirin-free Aches & Discomforts contains White Willow Bark (a natural herb) which contains salicin. This chemical is thought to be responsible for the pain relieving and anti-inflammatory effects of the herb itself. This bark may be used in helping to feasibly manage mild fevers, colds, infections, & arthritis. This product is safe to use and will not affect the liver or the kidneys. Please use in dogs over the age of 12 weeks. Recommended Daily Dosage: Use table below for up to twice daily consumption0 - 26 lbs :   1/2 tablet 27 - 50 lbs : 1 tablet 51-99 lbs :   2 tablets 100+ lbs :    3 tablets