Kottakkal Rajatha Bhasmam Capsule is an Ayurvedic Classical Medicine manufactured by Arya Vaidya Sala,  Kottakkal. It is described in Ras Tarangini Chapter 16, Shloka 37 to 40. Rajatha or Silver and Lajjalu or Mimosa pudica are the two main ingredients used in making Rajatha Bhasmam Capsules.

Rajatha Bhasmam have Madhura, Kashaya and Amla Rasa ; Sheeta Virya, it has Lekhan,  Brimhana, Snigdha, Sarakha, Ruchiprada, Agni Vardhak, Garbhashaya Shodhak Karma. It is Vatahara, Pitta Sarak, Kapha Prakop Nashak thus acting as a Tridosha Shamaka and a Rasayana. It mainly works on  Vatavahini Sira and Raktavahini Snayu.

It can be indicated in 20 types of Prameha, Vatavyadhi,  Pitta Vikara,  Dhatu ksheenata, Apsamara, Netra Roga, Kshaya,  Vata pradhana Kasa, Pakshaghata, Unmada, Rajayakshma, Arsha,  Amlapitta, Shushka Kasa, Shukra Kshaya, Yakrut Vruddhi, Pleeha Vruddhi, Jeerna Jwara, Trishna, Mukha Shosha, Nadishoola, Pitta janya Jalodar, Kotha, Upadansha, Shiro Vikara, Pandu,  Dourbalya, Manasika Vikara, etc.

Rajatha Bhasmam has Buddhi Vardhak Karya, which reduces the Vikruti of Sadhaka Pitta and thus acts as Medhya and can be used in Unmada,  Apsamara, and Mano Vikara. It helps in reducing Physical and Mental fatigue.

It increases Twacha Kranti and regulates the function of Bhrajaka Pitta. Rajatha Bhasmam helps to increase Prastha Rasadhi Sapta Dhatu, increases Jataragni and Dhatvagni, reduces Agnimandya and Dhatudourbalya, gives Poshan to all Sapta dhatu, decreases Mano Dourbalya, increases Sapta Dhatu Saara and Ojha.