Tiamulin is a pleuromutilin antibiotic drug that is used in veterinary medicine particularly for pigs and poultry. Tiamulin hydrogen fumarate is a semisynthetic derivative of pleuromutilin. Tiamulin is active against gram-positive bacteria, mycoplasmas, and anaerobes, including Brachyspira hyodysenteriae. It is also clinically effective in treatment of swine dysentery and mycoplasmal arthritis.
Tiamulin hydrogen fumarate is widely used semisynthetic drug included in pleuromutilin class of antibiotics .Tiamulin is a drug of choice in treatment of swine dysentery caused by Brachyspira hyodeysentreiae and bacterial pneumonia caused by Pasteurella multicida.