Introduction
(HPMC) were prepared by granulation tissue with water and compressing at 127 MPa in a hydraulic press. The release profile of the found tablets was evaluated with the USP 23 apparatus 2 (paddle) at 100 rpm and using 0.1 N HCI as the medium.
The determine of the HPMC viscous ness grade and material size on the free profile of antiprotozoal was measured at glutinosity grades of 15, 860, 5000, 20000 and 30000 cP and at particle sizes of 163, 213, 335 and 505 am.
The results showed a linear relationship between the inverse of the action rate (Q/t1/2) and the consistency grade of HPMC, at a HPMC ratio of 10%. A linear relation between the release rate and the cube of the radius of the HPMC materials was also observed.
Address
HPMC
Wenham Road 4010#-4011# xiasha Hang Zhou China,
Hang Zhou, Zhejiang,
China 310012
Phone: 86-571-8683-8490
Fax: 86-571-8683-8491
May 20th, 2010 at 1:36 pm
i want information of various grades of HPMC polymer alongwith the porpose(function) of each grade in formulation and their mechanism of action.
February 2nd, 2011 at 1:32 am
sir kindly inform me the uses and various other detail of the HPMC used in formulation of various dosages form .
i heartly will be thankful to you .