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The degree of these effects in horses after intramuscular injection has relatively little support in the current literature. [35] However, there is much anecdotal evidence of their benefits for synovitis and osteoarthritis, and PSGAGs are very commonly used by veterinarians in the United States involved in racehorse and show horse practice. [36]
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 ...
The drug possess a biological half-life of 14 days when administered by intramuscular injection. [1] Boldenone is a substrate for 5α-reductase and may be converted by this enzyme into 1-testosterone (δ 1 -dihydrotestosterone, δ 1 -DHT, dihydroboldenone) in tissues that express it such as the skin , hair follicles , and prostate gland . [ 6 ]
Side effects from intra-articular administration can include joint pain, swelling, lameness, and, rarely, infection of the joint. Intramuscular injection can cause dose-dependent inflammation and bleeding, since PSGAG is an analogue of the anticoagulant heparin. [4] In dogs, this may manifest as bleeding from the nose or as bloody stools. [7]
Injection site reactions (ISRs) are reactions that occur at the site of injection of a drug. They may be mild or severe and may or may not require medical intervention. Some reactions may appear immediately after injection, and some may be delayed. [1] Such reactions can occur with subcutaneous, intramuscular, or intravenous administration.
Flunixin is a nonsteroidal anti-inflammatory drug (NSAID), analgesic, and antipyretic used in horses, cattle and pigs. It is often formulated as the meglumine salt.In the United States, it is regulated by the U.S. Food and Drug Administration (FDA), and may only be lawfully distributed by order of a licensed veterinarian.
The term injection encompasses intravenous (IV), intramuscular (IM), subcutaneous (SC) and intradermal (ID) administration. [35] Parenteral administration generally acts more rapidly than topical or enteral administration, with onset of action often occurring in 15–30 seconds for IV, 10–20 minutes for IM and 15–30 minutes for SC. [36]
Side effects in animals include nephrotoxicity, ototoxicity, and allergic reactions at IM injection sites. Cats tend to be more sensitive to the vestibular damage caused by ototoxicity. Less frequent side effects include neuromuscular blockade, facial edema, and peripheral neuropathy. [8] [35] The half-life in most animals is one to two hours. [43]