Kaph Kuthar Ras – Benefits, Usage, Indications and Dosage Reference – Rasa Ratna Samuccaya Introduction Kaph Kuthar Ras is one of the known ayurvedic formulation that is prepared from the mixture of minerals and herbs. This is known to treat problems related with cough and phlegm. Ingredients Shuddh parad – Calcinated and purified mercury Shuddha gandhaka – Calcinated and purified sulphur Saunth – Zingiber officinale Maricha – Piper nigrum Pippali – Piper longum Tamra bhasma – Calcinated and purified copper