Verse 45

स्वभावमालोकयत आनन्दाद्वयसंस्थितेः ।रसायनमपि स्वादु राम प्रतिविषायते

In plain words

For one who beholds his own true nature, abiding in the nonduality of bliss, even the sweet elixir, Rāma, turns to poison.