| 11. | She tests him by slipping vervain into his drink and he reacts negatively to it.
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| 12. | Elena gets alone with Damon and she forces him to drink vervain to weaken him.
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| 13. | Elena manages to lead Stefan away from the others and Alaric shoots him with vervain.
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| 14. | Alaric ( vervain and takes his blood.
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| 15. | Common vervain was scientifically described by Carl Linnaeus his 1753 " Species Plantarum ".
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| 16. | Damon gives her the vervain and tells her she owes him-and he will collect.
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| 17. | Blue Vervain can be used to strengthen and regenerate the nerve system while relieving tension and stress.
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| 18. | Giuseppe spiked Stefan's drink with vervain and, later that night, Katherine bit him.
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| 19. | He shoots Damon up with vervain but before Damon passes out he stabs him in the neck.
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| 20. | He shots her with vervain and takes her away while Caroline watches from her car in shock.
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