The present invention pertains to prevention of and/or treatment for filariasis. In particular, the present invention pertains to the use of tylosin A and its analogs and derivatives to prevent or treat filarial worm infection and/or diseases associated with filarial worm infection. The present invention also pertains to pharmaceutical compositions comprising tylosin A or an analog or derivative thereof for use in preventing or treating filarial worm infection and/or diseases associated with filarial worm infection.
