Anisotropic rotational diffusion of di-tert-butylnitroxide in the inclusion complex of .beta.-cyclodextrin in aqueous solution

1984 ◽  
Vol 88 (18) ◽  
pp. 4181-4184 ◽  
Author(s):  
Masaharu Okazaki ◽  
Keiji Kuwata
Il Farmaco ◽  
2004 ◽  
Vol 59 (10) ◽  
pp. 835-838 ◽  
Author(s):  
Syed Mashhood Ali ◽  
Fahmeena Asmat ◽  
Arti Maheshwari

1978 ◽  
Vol 26 (4) ◽  
pp. 1162-1167 ◽  
Author(s):  
KANETO UEKAMA ◽  
FUMITOSHI HIRAYAMA ◽  
MASAKI OTAGIRI ◽  
YOUKO OTAGIRI ◽  
KEN IKEDA

2021 ◽  
pp. 27-32
Author(s):  
Olga Mikhailovna Balakhonova ◽  
Viktoriya Sergeevna Tyukova ◽  
Stanislav Anatolievich Kedik

The paper presents the results of a study of the stability of aqueous solutions of inclusion complexes of hydroxypropyl-β-cyclodextrin with diisopropylphenol in various systems by the Higuchi-Connors phase solubility method. The phase solubility profiles for each system corresponding to the AN type are determined graphically, and the stability constants of the resulting inclusion complexes are calculated. An aqueous solution containing 0.2 % Tween 80 and 0.2 % mannitol was selected as the optimal condition for obtaining the hydroxypropyl-β-cyclodextrin inclusion complex with diisopropylphenol.


Author(s):  
Deepak Sarangi ◽  
Subhashree Mallick ◽  
Anjum Ara ◽  
Sanjeeb Kumar Sahoo ◽  
Rabinarayan Rana

Olmesartan Medoxomil is an AT1 subtype selected angiotensin-II receptor antagonist approved for the treatment of hypertension. It has low water solubility, so the current effort is being made to enhance the solubility of the Olmesartan by inclusion complex and to incorporate them into tablets by direct compression. Complexing agent like Beta cyclodextrin and polyvinyalpyrrolidone has been used for complexation method. FT-IR studies have shown that there is no link between drugs and complexing agents. Among all methods, the inclusion complex (OLBCD 3) containing the drug: Beta cyclodextrin in a 1: 3 ratio showed rapid drug release (87.41% within 30 minutes) and post compression parameters are within limits. All the values obtained from pre compression and post compression parameters meets the legal requirements for tablets. Stability studies of batch no OLBCD 3 shows no significant change. Therefore, it can be concluded that the structure was stable.


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