ἀντιπαθές
From LSJ
Σκηνὴ πᾶς ὁ βίος καὶ παίγνιον: ἢ μάθε παίζειν, τὴν σπουδὴν μεταθείς, ἢ φέρε τὰς ὀδύνας → All life is a stage and a play: either learn to play laying your gravity aside, or bear with life's pains.
Russian (Dvoretsky)
ἀντιπᾰθές: τό противодействующее средство, лекарство (τὸ μόνον ἀ. ἐξέλιπε Plut.).