Though there is great diversity in the animal kingdom, animals can be distinguished from the other kingdoms by a set of characteristics.he set of characteristics provided by Audesirk and Audesirk are: 1  Animals are multicellular. 2  Animals are heterotrophic, obtaining their energy by consuming energy-releasing food substances. 3  Animals typically reproduce sexually. 4  Animals are made up of cells that do not have cell walls.
DRUG DESCRIPTION. The active ingredient in PEPCIDÂ® (famotidine) is a histamine H2-receptor antagonist. Famotidine is N'(aminosulfonyl)-3-[[[2-[(diaminomethylene)amino]-4-thiazolyl]methyl]thio]propanimidamide. The empirical formula of famotidine is C 8 H 15 N 7 O 2 S 3 and its molecular weight is 337.43.Its structural formula is:top using famotidine and call your doctor at once if you have a serious side effect such as: 1  easy bruising or bleeding; 2  fast or pounding heartbeat; 3  confusion, hallucinations, seizure; 4  numbness or tingly feeling; or. 5  jaundice (yellowing of the skin or eyes).
The elimination half-life of intravenous famotidine is slightly longer, at 2.5 to 3.5 hours in normal volunteers [34]. Metabolism and Excretion. After intravenous administration of H2-receptor antagonists, about 65 to 75 percent of the drugs are excreted unchanged in the urine [8,33,41,43].The inactive metabolic products are also excreted unchanged in the urine. Plasma Clearance.ORRELATION BETWEEN BLOOD LEVELS AND GASTRIC PH The correlation between blood levels of H2-receptor antagonists and gastric pH has not always been straightforward in studies of use of these agents in intensive care units.