Tetrahydroalstonine is an indole alkaloid extracted from the fruit of Rhazya stricta and is a selective α2-adrenoceptor antagonist. tetrahydroalstonine has shown antipsychotic activity in Rauwolfia tetraphylla.

Flucycloxuron is a chitin synthesis inhibitor used as a pesticide. In insect models, the inhibitor has been shown to affect several reproductive events such as the duration of preovipostion.

Topilutamide is a topical nonsteroidal antiandrogen.