Drug Name Zanaflex

The effect declines only when the plasma level has returned (below 20) into the range where a change in plasma level causes a change in the intensity of the effect. The dose dependence of the time course of the drug effect is exploited when the duration of the effect is to be prolonged by administration of a dose in excess of that required for the effect.
Antianginal agents derive from three drug groups, the pharmacological properties of which have already been presented in more detail, viz. , the organic nitrates, the Ca2+ antagonists, and the ?-blockers. Organic nitrates (A) increase blood flow, hence O2 supply, because diastolic wall tension (preload) declines as venous return to the heart is diminished.

 

The presence of a continuous phospholipid layer means that squamous epithelia will permit passage of lipophilic drugs only, i.e., agents capable of diffusing through phospholipid membranes, with the epithelial thickness determining the extent and speed of absorption.
Aldosterone-synthesizing capacity, however, remains unaffected. When glucocorticoid medication is suddenly withheld, the atrophic cortex is unable to produce sufficient cortisol and a potentially life-threatening cortisol deficiency may develop. Therefore, glucocorticoid therapy should always be tapered off by gradual reduction of the dosage. Regimens for prevention of adrenocortical atrophy.