Mukta Sukti Bhasma is an Ayurvedic medicine prepared from Pearl Oyster.
Its usage:

• It relieves abdominal colic, gastritis, useful in treating cardiac diseases, urinary calculi, splenomegaly.
  
• It is sweet in taste and qualities.

Mukta Sukti Bhasma preparation, ingredients:
Purified Pearl Oyster pieces are made into fine powder by grinding. It is heated in absence of air in 800 – 900 degree celsius for 2 – 3 hours. This process is repeated for three times, to get white colored Muktasukti Bhasma (Pearl oyster Calx).
Reference: Ayurveda prakasha.
Dosage:
125 – 250 mg once or twice a day before or after food.
Side effect:

• Self medication with this medicine may prove to be dangerous.
  
• Over-dosage may cause severe side effects.