What route of administration is primarily used for Calcium Chloride?

Calcium Chloride is primarily administered through the intravenous route due to its effectiveness in rapidly increasing calcium levels in the bloodstream, especially in emergency situations like hypocalcemia or calcium channel blocker overdose. When administered intravenously, it allows for immediate bioavailability and quick physiological action, which is crucial in acute care settings. This route also minimizes the potential for gastrointestinal side effects that may occur with oral administration, where absorption can be variable and delayed. Topical and inhalation routes are not suitable for Calcium Chloride, as it requires direct entry into the bloodstream to exert its therapeutic effects efficiently.