Table of Contents
How long does it take for an intramuscular injection to take effect?
Intramuscular administration relies upon the high vascularity of muscle tissue to achieve a moderately rapid onset of action, usually within 5 to 10 minutes. When properly administered, intramuscular injection provides a more rapid onset and offset as compared with enteral techniques (see Fig.
Is intramuscular injection faster than oral?
Intramuscular (IM) Produces a faster effect than oral administration, however the rate of absorption depends greatly on the site of injection and on local blood flow. The drug can be aqueous solutions or depot preparations (in a form of ester or salt).
WHY is intramuscular faster?
The speed of absorption is faster for intramuscular injection compared to subcutaneous injection. This is because the muscle tissue has a greater blood supply than the area just under the skin. Muscle tissue may also hold a larger volume of medication than subcutaneous tissue.
WHY is intramuscular not IV?
Intramuscular injections may be used instead of intravenous injections because some drugs are irritating to veins, or because a suitable vein can’t be located. It may be used instead of oral delivery because some drugs are destroyed by the digestive system when a drug is swallowed.
Which is faster IM or SC?
Intramuscular injections are absorbed faster than subcutaneous injections. This is because muscle tissue has a greater blood supply than the tissue just under the skin. Muscle tissue can also hold a larger volume of medication than subcutaneous tissue.
How long does it take for an intramuscular injection to work?
Intramuscular administration relies upon the high vascularity of muscle tissue to achieve a moderately rapid onset of action, usually within 5 to 10 minutes. When properly administered, intramuscular injection provides a more rapid onset and offset as compared with enteral techniques (see Fig. 17-4, B).
What is the intramuscular route of Drug Administration?
The intramuscular route of drug administration (Fig. 8.5) involves injection of the sedative agent into a skeletal muscle mass. It also involves certain advantages and disadvantages when used in pediatric dentistry. Figure 8.5.
How are intramuscular injections used in modern medicine?
Intramuscular injections are a common practice in modern medicine. They’re used to deliver drugs and vaccines. Several drugs and almost all injectable vaccines are delivered this way. Intramuscular injections are used when other types of delivery methods aren’t recommended.
How is the absorption rate of an intramuscular drug determined?
The rate of absorption from an intramuscular site is governed by the same factors influencing gastrointestinal uptake, such as lipid/water partition coefficient, degree of ionization, and molecular size. Many drugs are absorbed at approximately the same rate, however, regardless of these factors.