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What is the advantage of intramuscular injection?
Intramuscular injections have other advantages too. The muscles have a plentiful supply of blood, which helps ensure that the body absorbs the medication quickly. The tissue in the muscles can also hold more medication than fatty tissue. Doctors administer most injectable vaccines into the muscles.
Is intramuscular injection effective?
Studies have shown that the success rates of intended intramuscular injections vary between 32 and 52\%, with the rest potentially resulting in inadvertent subcutaneous drug deposition. These rates are found to be even lower for certain at-risk populations, such as obese patients and those on antipsychotic medications.
What are intramuscular injections?
Vaccines given IM (intramuscular) route: DTaP, DT, Hib, hepA, hepB, HPV, IIV, MCV, PCV, rabies, Td, Tdap and RZV (Shingrix). Administer IPV and PPSV vaccines either via IM or SQ (subcutaneous) route.
How quickly do intramuscular injections 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.
What are the advantages of subcutaneous injections?
As subcutaneous tissue has few blood vessels, the injected drug is diffused very slowly at a sustained rate of absorption. Therefore, it is highly effective in administering vaccines, growth hormones, and insulin, which require continuous delivery at a low dose rate.
What happens to protein drugs that are injected intramuscularly?
Drugs in aqueous solution are often absorbed rapidly from intramuscular sites. Drugs dissolved in oil (‘depot’ injections) are absorbed more slowly and absorption can continue for weeks after injection.
How is an intramuscular injection given?
Hold the skin around where you will give the injection: With your free hand, gently press on and pull the skin so that it is slightly tight. Insert the needle into the muscle: Hold the syringe barrel tightly and use your wrist to inject the needle through the skin and into the muscle at a 90 degree angle.
Why is it sometimes advantageous to inject drugs intramuscularly rather than subcutaneously or intravenously?
The intramuscular route is preferred to the subcutaneous route when larger volumes of a drug product are needed. Because the muscles lie below the skin and fatty tissues, a longer needle is used.
What are the advantages of oral route of drug administration?
Advantages of oral route of drug administration
- It is the simplest, most convenient, and safest means of drug administration.
- It is convenient for repeated and prolonged use.
- It can be self-administered and pain-free.
- It is economical since it does not involve the patient in extra cost.
- No sterile precautions needed.
What drugs are given intramuscularly?
Drugs may be given intramuscularly both for prophylactic as well as curative purposes, and the most common medications include[2]:
- Antibiotics- penicillin G benzathine penicillin, streptomycin.
- Biologicals- immunoglobins, vaccines, and toxoids.
- Hormonal agents- testosterone, medroxyprogesterone.