Propylthiouracil tablets

To prepare a water suspension propylthiouracil enema, grind eight 50 mg tablets and suspend the powder in 90 mL of sterile... 

Oral solution (Lugol s solution) 100 mg/mL potassium iodide plus 50 mg/mL iodine Oral potassium iodide tablets (generic, IOSAT, Thyro-Block) 130 mg Propylthiouracil [PTU] (generic)... 

The tablets can be assayed directly by the mercury method given above using a weight of powdered tablets equivalent to about 0 4 g of propylthiouracil. The silver precipitation method, however, is not applicable to the tablets since an interfering red colour completely obscures the endpoint. 

---