http://localhost:80/xmlui/handle/123456789/16560 Fri, 10 Apr 2026 14:38:26 GMT 2026-04-10T14:38:26Z http://localhost:80/xmlui/handle/123456789/16635 Title: Short communication: characterization of streptolysin s (sls): storage and stability Authors: B A Memon; T H Birkbeck; J H Frerr Abstract: The stability of streptolysin S during storage under different conditions has been studied. It is completely stable in 0.1% (w/v) bovine serum albumin supplemented with 20% (v/v) glycerol at -20 degrees C for more than 6 months. The in vitro study suggests that removal of SLS from cellular environment subjects it to variety of conditions and processes that can lead to loss of activity. Sat, 09 Jul 1994 00:00:00 GMT http://localhost:80/xmlui/handle/123456789/16635 1994-07-09T00:00:00Z http://localhost:80/xmlui/handle/123456789/16634 Title: Review: scheduling drugs and national legal controls the need for research Authors: D C Jayasuriya; I Khan Abstract: The system of scheduling narcotic drugs and psychotropic substances under national legislation does not always correspond to the system of scheduling under the international drug control treaties. Even though many drugs have been scheduled under the international drug control treaties, few studies have been done to identify what happens when drugs are scheduled at the national level. Preliminary studies seem to indicate that non-availability and higher prices are two problems which are associated with the scheduling process at the national level. Further research is needed to have a better understanding of the dynamics of the scheduling process and the impact of national controls. Sat, 09 Jul 1994 00:00:00 GMT http://localhost:80/xmlui/handle/123456789/16634 1994-07-09T00:00:00Z http://localhost:80/xmlui/handle/123456789/16633 Title: Effect of temperature and humidity on hardness and friability of packaged paracetamol tablet formulations Authors: I Ahmad; R H Shaikh Abstract: The influence of various temperature and relative humidity conditions on changes in hardness and friability of five commercial brands of packaged paracetamol tablets stored over a period of six months has been investigated. At 75% RH all sample show deterioration in hardness at 25 degrees (5-10%) and at 45 degrees (10-39%). At 100% RH there is a little difference in deterioration in hardness at 25 degrees (16-24%) and 45 masculine (20-28%) suggesting that once the critical moisture content is reached by the tablets, further increase in relative humidity has little effect on changes in hardness. Under the same conditions, all tablets show an increase in friability ranging from 2.83 to 8.02%. The overall increase in friability with an increase in temperature from 25 degrees to 45 degrees at 75% and 100% RH is 0.0 to 25.2%. The results indicate that moisture sorption by tablet matrix through certain packaging materials may adversely affect the hardness and friability characteristics. Fri, 08 Jul 1994 00:00:00 GMT http://localhost:80/xmlui/handle/123456789/16633 1994-07-08T00:00:00Z http://localhost:80/xmlui/handle/123456789/16632 Title: Stability of phosphoinosit1des containing liposomes: effects of triton x-100, temperature and 68 rpm Authors: M Riaz; N Weiner Abstract: The stability of phosphoinositide containing liposomes was investigated. It was found that 2% of triton X-100 completely released entrapped carboxyfluorescein. The release of carboxyfluorescein occurred the most of 58 degrees C (78% at 2 hours) and the least at 4 degrees C (5.4% at 118 hours). When stored at 68 RPM (at 25 degrees C) about the 20% carboxyfluorescein was released at 48 hours, but when the liposomes were kept at 25 degrees C for the same period of time, the release was about 10%. Thu, 07 Jul 1994 00:00:00 GMT http://localhost:80/xmlui/handle/123456789/16632 1994-07-07T00:00:00Z