Intravenous Injection
Intravenous Injection - Related Videos
05:17
Intravenous Injections in Neonatal Mice
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Cited by 78 •
2014
Animal models of pediatric disease can experience early onset and aggressive disease progression. Clinically relevant therapy delivery to young mouse models can be technically difficult. This protocol describes a non-invasive intravenous injection method for newborn mice within the first two postnatal days of life.
09:21
Isolation and Intravenous Injection of Murine Bone Marrow Derived Monocytes
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Cited by 31 •
2014
Here we present a protocol that generates large amounts of murine monocytes from heterogeneous bone marrow for translational applications. In comparison to others, this new method helps reduce the number of sacrificed animals and lowers costs by avoiding expensive methods such as high gradient magnetic cell separation (MACS).
05:55
Delivery of Therapeutic Agents Through Intracerebroventricular (ICV) and Intravenous (IV) Injection in Mice
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Cited by 122 •
2011
This article demonstrates two very different methods of injection: 1) into the brain (intracerebroventricular) and 2) systemic (intravenous) to introduce the therapeutic agents into the central nervous system of neonatal mice.
02:57
Catheter Based Intravenous Injection of Experimental Agents: A Technique for Delivering Experimental Agents Intravenously Through Jugular Vein in Mouse Model
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2025
In this video, we describe a method for implanting a catheter into the jugular vein of a mouse model through which experimental agents such as drugs and tracer dyes can be delivered intravenously in vivo. Such an arrangement when connected to other systems can also be used for monitoring hemodynamics and blood sampling.
05:17
Optimized Intravenous Injection in Adult Zebrafish
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Cited by 5 •
2024
Here, we present an optimized and effective protocol for the intravenous injection of cells or pharmacological agents into adult zebrafish, resulting in enhanced cell engraftment and increased survival rates of the treated zebrafish.
FAQs
Direct venous delivery bypasses gastrointestinal absorption and first-pass hepatic metabolism. As a result, the administered substance enters systemic circulation before distribution to tissues, supporting predictable exposure and making the route useful for evaluating pharmacokinetic behavior and bioavailability. This direct entry also helps pharmacologists relate administered dose to observed systemic drug effects.
The substance reaches the bloodstream without waiting for gastrointestinal absorption or passage through the liver before systemic distribution. This shortens the path between administration and tissue exposure and makes the delivered dose more directly connected to circulating drug levels. Pharmacologists therefore use the route when examining dose-response relationships or when prompt, controlled systemic exposure is important.
The formulation must be appropriate for direct administration into a vein, while vascular access must place the needle within the venous lumen rather than outside it. Sterile technique helps support safe administration, and monitoring helps detect problems during exposure. These requirements matter because the route delivers substances directly into systemic circulation, where correction after administration may be limited.
Unlike a gastrointestinal route, intravenous injection does not depend on absorption through the digestive tract and bypasses first-pass hepatic metabolism. This distinction changes the relationship between the administered amount and systemic exposure, making intravenous delivery useful when predictable bioavailability is needed. It also contributes to more rapid effects, although the opportunity to remove the administered dose is limited.
A controlled workflow requires an appropriate formulation, sterile technique, reliable vascular access, placement of the needle within the venous lumen, and monitoring after administration. Together, these elements support accurate delivery and observation of the resulting exposure. In pharmacology, controlling these conditions is especially important when researchers interpret drug effects, dose-response relationships, or pharmacokinetic measurements.
In pharmacology research, the route supports studies of dose-response relationships, pharmacokinetics, bioavailability, and drug effects by providing direct systemic exposure. Clinicians may select it when precise dosing or prompt treatment is required. Across both settings, monitoring remains important because intravenous administration can produce rapid effects and leaves limited opportunity to remove the delivered substance.