缓释剂是要确保药物不断的 ,慢慢的，但稳定的速度被释放到身体。药剂从离子交换树脂释放是 取决于身体内不同液体与药品及树脂错化物之间的反应来决定。对药物的释放速度可通过改变控制粒子的大小，树脂交联的程度及树脂的化学性质。此种持续性的释放药效配方是可以依照不同的应用而量身订作的。
Premium Pharmaceutical Grade Resin
Tulsimer® 344 is "Sodium Polystyrene USP". It is highly purified crosslinked polyacrylic copolymer in Sodium form.
Tulsimer® 344 (Sodium Polystyrene Sulphonate USP) is uesd in taste masking and sustained release applications for variety of drug molecules.
Tulsimer® 344 (Sodium Polystyrene Sulphonate USP) is used in dosage forms like liquid oral suspension and tablets.
This product is manufactured under GMP at an FDA approved, ISO 9001:2000 & ISO 14001 certified facility.
TYPICAL (Sodium Polystyrene Sulphonate USP)：Tulsimer®344
Strong Acid Cation exchange resin
Cross linked polystyrene copolymer
Golden brown, fine powder
Moisture contents (approx)
10 % max.
Limit of Ammonium salts
The litmus paper shows no blue colour/ Negative to litmus paper.
Potassium exchange capacity
110-135mg/g on anhydrous basis
9.4% to 11.5% on anhydrous basis
Iron content as Fe
Not more than 100 ppm
Heavy metals as Pb
Not more than 10 ppm
Retention on 100ASTM mesh =1% max
Insoluble in water
The sampling and testing of ion exchange resins is done as per standard testing procedures, namely ASTMD-2187 and IS-7330, 1998.
HDPE lined bags
HDPE lined bags
For Handling, Safety and Storage requirements please refer to the individual Material Safety Data Sheets available at our offices. The data included herein are based on test information obtained by Thermax Limited. These data are believed to be reliable, but do not imply any warranty or performance guarantee. Tolerances for characteristics are as per BIS/ASTM. We recommend that the user should determine the performance of the product by testing on own processing equipment.