What specifications distinguish veterinary oral solutions from oral suspensions?

A solution requires control of active dissolution, pH, assay, degradation, microbial quality and container compatibility. A suspension additionally requires particle-size, sedimentation, redispersibility and dose-uniformity controls. Both need accurate measuring or administration instructions and stability in the final pack. Buyers should review water quality, temperature and in-use conditions where products are administered through drinking systems, while leaving clinical directions to the authorised label and veterinarian.