Antibiotics are drugs that are active against bacteria.

Veterinary antimicrobials may work by killing bacteria (bactericidal) or by inhibiting their growth and proliferation (bacteriostatic), making the animal's immune system more effective in fighting bacterial infections.

Ivermectin is an injectable parasiticide for cattle and swine.

Antimicrobials are used to prevent, control, and treat diseases in companion, laboratory, food, zoo, and aquatic animals.

Veterinary oversight is and should be required whenever medically important antibiotics are administered to animals, including via feed or water.

Antimicrobials are powerful tools in the life-and-death fight against disease, and they provide life-saving support for animals and people worldwide.

The discovery of antimicrobial products—and their use to fight infection and disease—were among the most significant medical advances of the 20th century.

The main reasons to use antimicrobial drugs in animals are for treatment and prophylaxis or strategic treatment.

In farm animals antimicrobial agents are also used to enhance performance by increasing feed conversion, growth rate, or yield.

Antimicrobials are generally used to prevent, control, or treat infection in animals much like they are used in human medicine.

A physician or veterinarian might administer or prescribe an antimicrobial to treat skin, bone, or systemic infections.

Ivermectin is derived from the avermectins, a family of potent, broad-spectrum antiparasitic agents isolated from fermentation of Streptomyces avermitilis.