1, short-acting (the pine class): cortisone, hydrocortisone (the former in the liver into the latter to take effect) 2, medium-acting (nisons): nisons prednisone, hydrogenated prednisone (prednisolone) (the former in the liver into the latter to take effect). 3, long-acting (misonics): dexamethasone, betamethasone. 4, topical (fluticasone class): fludrocortisone, skin lightening. Glucocorticoid summary (memorization method, eight four): 1, there are four conformational relationships: the basic structure of the steroid nucleus (1) C3 ketone group, the carbonyl group of C20 and C4-5 double bond is necessary to maintain physiological function; (2) C17 -OH; C11 = O or -OH; (3) C1 ~ 2 for the double bond as well as the introduction of the -CH3 C6 anti-inflammatory effect is enhanced, the effect of water and salt metabolism is weakened; (( 4) C9 introduced -F, C16 introduced -CH3 or -OH, the anti-inflammatory effect is stronger, water and salt metabolism is weaker. 2, the four major physiological effects: glucose, egg digestion, lipid separation, sodium conservation. (1) sugar: promote glycogen isomerization; inhibit sugar uptake and oxidative utilization; (2) egg: synthesis ¯, accelerated decomposition)r (negative nitrogen balance; (3) fat: fat synthesis ¯, decomposition; fat redistribution; (4) sodium preservation: sodium retention; 3, divided into four categories: short-acting (of the pine class), intermediate-acting (nisone class), long-acting (mison), topical (fluticasone class) 4, four major anti-role (super physiological dosage): Anti-inflammatory, anti-toxicity, anti-allergy, anti-shock.5. Effects on blood and hematopoietic system, four more and one less: increased red blood cells, hemoglobin, platelets, fibrinogen, and decreased lymphocytes.6. Adverse reactions: four one: one in, one out, one slow, and one against. (1) One advance: hyperadrenocorticoidism (Cushing’s syndrome). (2) One regression: adrenocortical atrophy and hyposecretion. (3) A slow: delayed wound healing. (4)A rebound: rebound phenomenon after stopping the drug. Four induced: (1) induce or aggravate infection. (2) Induce or aggravate diabetes, hypertension. (3) Induce or aggravate ulcer disease. (4) Induce or aggravate psychosis.7. Four uses: (1) small amount of replacement: hypoadrenocorticism, etc.. (2) Large amount of surprise: severe infection or shock. (3) Positive amount of long-term use: autoimmune diseases, inflammatory sequelae, etc.. (4)Two days total once morning use. Description:For certain chronic diseases that have been controlled with corticosteroids, it can be changed to alternate-day administration, that is, the amount of medicine for 48 hours, once in the morning at 8:00 a.m. Its efficacy is the same as the daily dose, and on the hypothalamus – pituitary, adrenal cortex inhibition is lighter, less adverse reactions. Every other day administration, to prednisone, prednisolone is better. 20mg prednisone is equivalent to 0.75mg dexamethasone.