Drug Name Prevacid

Included among these are “transmitters” released from nerves, which the cell is able to recognize with the help of specialized membrane binding sites or receptors. Hormones secreted by endocrine glands into the blood, then into the extracellular fluid, represent another class of chemical signals.
The eicosanoids, prostaglandins, thromboxane, prostacyclin, and leukotrienes, are formed in the organism from arachidonic acid, a C20 fatty acid with four double bonds (eicosatetraenoic acid). Arachidonic acid is a regular constituent of cell membrane phospholipids; it is released by phospholipase A2 and forms the substrate of cyclooxygenases and lipoxygenases.

 

Chemical stimuli also underlie pain secondary to inflammation or ischemia (angina pectoris, myocardial infarction), or the intense pain that occurs during overdistention or spasmodic contraction of smooth muscle abdominal organs, and that may be maintained by local anoxemia developing in the area of spasm (visceral pain).
Because it is well absorbed, ketoconazole is available for oral administration. Adverse effects are rare; however, the possibility of fatal liver damage should be noted. Remarkably, ketoconazole may inhibit steroidogenesis (gonadal and adrenocortical hormones). Fluconazole and itraconazole are newer, orally effective triazole derivatives.