Drug Name Furosemide

Consequently, the steady-state plasma level declines to a new value corresponding to the new rate of elimination. The drug effect may diminish or disappear. Conversely, when elimination is impaired (e. g. , in progressive renal insufficiency), the mean plasma level of renally eliminated drugs rises and may enter a toxic concentration range.
Unwanted effects. Hypoglycemia results from absolute or relative overdosage. Allergic reactions are rare—locally: redness at injection site, atrophy of adipose tissue (lipodystrophy); systemically: urticaria, skin rash, anaphylaxis. Insulin resistance can result from binding to inactivating antibodies. A possible local lipohypertrophy can be avoided by alternating injection sites.

 

An intracellular site is the target for phosphodiesterase inhibitors (e.g., amrinone). Mention should also be made of the possibility of affecting cardiac function in angina pectorisor congestive heart failure by reducing venous return, peripheral resistance, or both, with the aid of vasodilators; and by reducing sympathetic drive applying ?-blockers.
Raising the individual dose would permit the dosing interval to be lengthened; however, it would also lead to transient peaks above the therapeutically required plasma level with the attending risk of unwanted toxic effects and tolerance development.