Steroid myopathy patient information

PRAVACHOL is contraindicated for use in pregnant woman because of the potential for fetal harm. As safety in pregnant women has not been established and there is no apparent benefit to therapy with PRAVACHOL during pregnancy, PRAVACHOL should be immediately discontinued as soon as pregnancy is recognized [see CONTRAINDICATIONS ]. Limited published data on the use of PRAVACHOL in pregnant women are insufficient to determine a drug-associated risk of major congenital malformations or miscarriage . In animal reproduction studies, no evidence of fetal malformations was seen in rabbits or rats exposed to 10 times to 120 times, respectively, the maximum recommended human dose (MRHD) of 80 mg/day. Fetal skeletal abnormalities, offspring mortality, and developmental delays occurred when pregnant rats were administered 10 times to 12 times the MRHD during organogenesis to parturition [see Data ]. Advise pregnant women of the potential risk to a fetus.

If the neurologic examination is unrevealing, a more general physical examination, searching for extramuscular signs, is warranted ( Table 6 5 , 7 – 15 , 17 , 18 , 21 , 24 – 27 , 34 , 36 , 38 ) . Mental status testing may reveal changes suggestive of a myopathy-inducing electrolyte disorder (calcium or magnesium) or an arrest of mental development as occurs in genetic myopathies. 25 , 29 The cardiovascular assessment may elicit changes consistent with a cardiomyopathy—a nonspecific consequence of many myopathy-inducing disorders—or a pericarditis, as occurs with some of the infectious and rheumatologic causes of muscle weakness. 5 , 7 , 8 , 9 , 18 , 21 , 24 , 25 , 29 , 36 , 38

Myopathies in systemic disease results from several different disease processes including endocrine, inflammatory, paraneoplastic, infectious, drug- and toxin-induced, critical illness myopathy, metabolic, collagen related, [2] and myopathies with other systemic disorders. Patients with systemic myopathies often present acutely or sub acutely. On the other hand, familial myopathies or dystrophies generally present in a chronic fashion with exceptions of metabolic myopathies where symptoms on occasion can be precipitated acutely. Most of the inflammatory myopathies can have a chance association with malignant lesions; the incidence appears to be specifically increased only in patients with dermatomyositis. [3]

During conventional pharmacologic dose corticosteroid therapy, ACTH production is inhibited with subsequent suppression of cortisol production by the adrenal cortex. Recovery time for normal HPA activity is variable depending upon the dose and duration of treatment. During this time the patient is vulnerable to any stressful situation. Although it has been shown that there is considerably less adrenal suppression following a single morning dose of prednisolone (10 mg) as opposed to a quarter of that dose administered every six hours, there is evidence that some suppressive effect on adrenal activity may be carried over into the following day when pharmacologic doses are used. Further, it has been shown that a single dose of certain corticosteroids will produce adrenal cortical suppression for two or more days. Other corticoids, including methylprednisolone, hydrocortisone, prednisone, and prednisolone, are considered to be short acting (producing adrenal cortical suppression for 1¼ to 1½ days following a single dose) and thus are recommended for alternate day therapy.

Steroid myopathy patient information

steroid myopathy patient information

During conventional pharmacologic dose corticosteroid therapy, ACTH production is inhibited with subsequent suppression of cortisol production by the adrenal cortex. Recovery time for normal HPA activity is variable depending upon the dose and duration of treatment. During this time the patient is vulnerable to any stressful situation. Although it has been shown that there is considerably less adrenal suppression following a single morning dose of prednisolone (10 mg) as opposed to a quarter of that dose administered every six hours, there is evidence that some suppressive effect on adrenal activity may be carried over into the following day when pharmacologic doses are used. Further, it has been shown that a single dose of certain corticosteroids will produce adrenal cortical suppression for two or more days. Other corticoids, including methylprednisolone, hydrocortisone, prednisone, and prednisolone, are considered to be short acting (producing adrenal cortical suppression for 1¼ to 1½ days following a single dose) and thus are recommended for alternate day therapy.

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