For some diagnostic procedures, a sedative may be necessary to relax your pet and restrict movement, and if any discomfort is anticipated, an analgesic is also given. One of the most common sedation protocols that we use involves a cocktail of drugs, which provides both sedation and analgesia. The sedative portion can be reversed after the sedation is no longer needed, while the analgesic (pain-killing) portion continues to provide relief. For example, when we perform a skin biopsy (where a small portion of skin tissue is surgically removed so it can be examined), we often use sedation with a local anesthetic. An additional example where we might use sedation is when we perform a total body shave on a cat so that the experience is less stressful to the kitty.