TL;DR: In an evaluation of safe, inexpensive, orally administered contrast agents for use at magnetic resonance imaging, different concentrations of the clay agents kaolin-pectate and attapulgite were compared in an in vitro phantom by performing spin-echo imaging with variable echo times to estimate T2 relaxation time.
Abstract: In an evaluation of safe, inexpensive, orally administered contrast agents for use at magnetic resonance imaging, different concentrations of the clay agents kaolin-pectate and attapulgite were compared in an in vitro phantom by performing spin-echo imaging with variable echo times to estimate T2 relaxation time. Additional phantoms containing from 0% to 100% attapulgite or barium preparations were compared by using spin-echo and spoiled-gradient-echo techniques to estimate T1, T2, and T2* relaxation times. In vivo spin-echo and gradient-echo images were obtained of 10 healthy volunteers and of five patients with pancreatic disease after oral administration of 12-16 oz of attapulgite preparation. T1 and T2 relaxation times obtained with use of attapulgite were slightly lower than those obtained with kaolin-pectate at both 50% and 25% concentrations. Compared with barium, attapulgite had shorter T1, T2, and T2* relaxation times, and concentration-dependent relaxivity was greater by nearly an order of magni...
TL;DR: There is a need for clinical monitoring of patients taking quinidine concomitantly with this type of adsorbent-antacid-antidiarrhoeal formulation, as well as the effect of some of these admixtures on drug absorption in human bioavailability studies.
TL;DR: The spectrum of procedures employed appeared to be suitable for the evaluation of antidiarrheal agents of the protective and adsorbent class.
Abstract: Several agents were employed to induce diarrhea in squirrel monkeys: (1) diarrhaogenic diets, (2) various doses of cholera toxin, (3) prostaglandin derivatives, (4) bile, (5) lactulose, (6) phenolphthalein, (7) castor oil. Kaolin, pectin, Kaopectate and placebo were used as antidiarrheal treatment. Evaluation was based on (a) frequency, (b) consistency, (c) total and dry weight of the stools, and (d) electrolyte loss. The spectrum of procedures employed appeared to be suitable for the evaluation of antidiarrheal agents of the protective and adsorbent class.
TL;DR: The adsorbant drugs colloidal Attapulgite and Pepto-bismol were shown to be effective in reducing fluid accumulation in ligated segments of pig intestine infected with enteropathogenic E. coli.
Abstract: Four adsorbant drug preparations, Kaopectate, colloidal Attapulgite, noncolloidal Attapulgite and Pepto-bismol were investigated for their effects on fluid accumulation in ligated segments of pig intestine inoculated with enteropathogenic Escherichia coli. Two anti-inflammatory drugs. aspirin and methylprednisolone, and two antibiotics, lincomycin and polymyxin B, were also tested. All the drugs except the two anti-inflammatory products were given by injection into the lumen of the intestine. Aspirin was given orally and methylprednisolone was given intramuscularly. The antibiotics were tested at levels at which they had no significant antibacterial effect in in vitro tests. The adsorbant drugs colloidal Attapulgite and Pepto-bismol were shown to be effective in reducing fluid accumulation in ligated segments of pig intestine infected with enteropathogenic E. coli. In the case of Peptobismol this effect was associated with an antibacterial effect as well as an antitoxic effect, probably due to its adsorbant properties. It is possible that an aspirin-like effect in the gut due to the active ingredient bismuth subsalicylate may have contributed to the effectiveness of Pepto-bismol. Colloidal Attapulgite was demonstrated to have an antitoxic effect but did not have an antibacterial effect. In high doses, the anti-inflammatory drugs acetylsalicylic acid and methylprednisolone were marginally effective in reduction of fluid accumulation in the same test system. Lincomycin was shown to reduce intestinal fluid secretion, whereas polymyxin B had no effect.
TL;DR: Results of multiple-modality treatment of patients with acute intestinal infections with making use of the drug preparation Kaopectate incorporating activated attapulgite which has been shown to be endowed with a antidiarrheal and detoxifying activities.
Abstract: The paper presents results of multiple-modality treatment of patients with acute intestinal infections with making use of the drug preparation Kaopectate incorporating activated attapulgite which is a natural mixture of hydrates of magnesium silicate and silicate of alumina. The above drug has been shown to be endowed with a antidiarrheal and detoxifying activities.