41. However that drug requires three injections per week compared to Avonex's single intramuscular injection. 42. In most countries, intramuscular injections of vitamin B 12 are used to treat pernicious anemia. 43. The preferred administrative route is intramuscular , which reduces risk of surrounding muscle and tissue damage. 44. However, in recalcitrant animals, detomidine may be administered by the intramuscular or sublingual routes. 45. Intramuscular , intravenous, and intra-articular medications may be added as the disease progresses.46. It is administered via intramuscular injection and acts as a long-lasting prodrug of testosterone. 47. :Note that an injection intended to be intramuscular may accidentally hit a vein or artery. 48. Instead, Massad said she was given an intramuscular painkiller that is about 50 percent as effective. 49. Very rare cases of intramuscular ganglion cysts in the gastrocnemius muscle of the calf have been reported. 50. In clinical settings, papaveretum is usually administered to patients via subcutaneous, intramuscular or intravenous routes.