Is it true that heparin is administered parenterally?

Heparin is indeed administered parenterally, meaning it is delivered by injection rather than orally. This is because heparin is a large, complex molecule that would not be effectively absorbed through the gastrointestinal tract. Parenteral administration allows for immediate onset of action and is essential for medications that require rapid effects, such as anticoagulants like heparin, which are used to prevent and treat thromboembolic disorders.

In the context of heparin use, it can be administered intravenously or subcutaneously, which are common parenteral routes. This method of delivery is crucial for achieving the desired therapeutic effects while minimizing gastrointestinal side effects and ensuring proper dosage management.