Can a drug be both an agonist and antagonist?

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Tags

1. #which
2. #behaves
3. #antagonist
4. #while
5. #pharmacology
6. #refer
7. #conditions
8. #agonist
9. #fully
10. #activates
11. #receptor
12. #substance
13. #mixed
14. #other
15. #under
16. #binds