According to the USP, a drug is believed to dissolve rapidly when at least 85% of the claimed amount of the molecule dissolves within 30 minutes, using the USP-I apparatus at 100 rpm or 50 rpm min for USP-II device. , in a volume of 900 ml or less in any media, such as 0.1 n HCl, pH 4.5 buffer, pH 6.8 buffer.
Dissolution Rate Equation
dw/dt= ks (Csat-Csol)
Where
dw/ dt = are the rate of dissolution
k = a dissolution constant
S = area of the solid
C sat = concentration of a saturated solution
C sol = the concentration at a given time
See also!
What are the different types of volumetric titration method?
What are the types of colorimeter?
Science Determination of pH by electrometric method
👩🔬 If you want to know other articles similar to Which equation describes the rate of dissolution of the drug from the pills? you can visit the CHEMISTRY
You May Be Interested in: