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Although meropenem is not approved for intramuscular or subcutaneous routes of administration in humans, there were studies that evaluated the drug bioavailability in cats and reported bioavailability of 99.69% for intramuscular route and 96.52 % for subcutaneous route of administration; these studies also compared elimination half-lives for ...
Imipenem is a broad-spectrum betalactam antibiotic used for severe bacterial infections caused by susceptible organisms. Because imipenem is rapidly inactivated by renal dehydropeptidase I, it is given in combination with cilastatin, a DHP-I inhibitor which increases half-life and tissue penetration of imipenem.
Intramuscular injection, often abbreviated IM, is the injection of a substance into a muscle. In medicine , it is one of several methods for parenteral administration of medications. Intramuscular injection may be preferred because muscles have larger and more numerous blood vessels than subcutaneous tissue, leading to faster absorption than ...
They also have essentially 100% bioavailability and can be used for drugs that are poorly absorbed or ineffective when they are given orally. [25] Some medications, such as certain antipsychotics, can be administered as long-acting intramuscular injections. [37] Ongoing IV infusions can be used to deliver continuous medication or fluids. [38]
Eye, ear or bladder infections; usually applied directly to the eye or inhaled into the lungs; rarely given by injection, although the use of intravenous colistin is experiencing a resurgence due to the emergence of multi drug resistant organisms. Kidney and nerve damage (when given by injection)
Imipenem acts as an antimicrobial through inhibiting cell wall synthesis of various Gram-positive and Gram-negative bacteria. It remains very stable in the presence of β-lactamase (both penicillinase and cephalosporinase) produced by some bacteria, and is a strong inhibitor of β-lactamases from some Gram-negative bacteria that are resistant to most β-lactam antibiotics.
The activity of meropenem/vaborbactam against P. aeruginosa and A. baumannii was found to be similar to that of meropenem alone. In fact, in these species, meropenem resistance is largely mediated by mechanisms that are not antagonized by vaborbactam (e.g., outer-membrane impermeability, upregulation of efflux systems, and production of class B ...
Meropenem is somewhat less potent than imipenem against gram-positive pathogens, and somewhat more potent against gram-negative infections. Unlike imipenem, which produced an unacceptable rate of seizures in a phase 2 trial, meropenem is effective for the treatment of bacterial meningitis. [ 24 ]