Maduramicin
Maduramicin (maduramycin) is an antiprotozoal agent used in veterinary medicine to prevent coccidiosis. It is a natural chemical compound first isolated from the actinomycete Actinomadura rubra. References

Antiprotozoal agents
Carboxylic acids
Secondary alcohols
Spiro compounds
Tertiary alcohols
Tetrahydrofurans
Tetrahydropyrans