In which form can medications be administered through injection?

Medications intended for injection are typically in liquid form. This format allows for the solution or suspension of active ingredients to be delivered directly into the body, ensuring rapid absorption into the bloodstream. Liquid medications can be easily drawn into a syringe, making it practical for various administration techniques, whether intramuscular, subcutaneous, or intravenous.

In contrast, tablets provide a solid dosage form that must be orally ingested and dissolved in the gastrointestinal tract before entering systemic circulation. Aerosols are designed for inhalation and not suitable for injection, as they target respiratory administration. Transdermal patches deliver medication through the skin into systemic circulation but do not involve injection. Understanding these forms helps in recognizing the appropriate routes of medication administration.