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Anti-Inflammatory Drugs Steroids and NSAIDs RC 195 Corticosteroids, “Steroids” Naturally-occurring hormones produced by the adrenal glands Glucocorticoids: Hydrocortisone Mineralcorticoids: Aldosterone Sex Hormones: Testosterone Actions of Glucocorticoids Anti-inflammatory – Supresses actions of kinins, cytokines, and other mediators of inflammation • Maintains microcirculation and minimizes edema • Maintains cell membrane integrity • Inhibits macrophage movement Inhibition of immune response – Stabilizes mast cells – Reduces histamine levels Bronchodilation – Potentiates catecholamine activity by inhibiting COMT and increasing adenyl cyclase production – Decreased cholinergic and alpha stimulation – Decreased phosphodiesterase production Steroid Uses Acute Inflammation Organ Transplant Allergic Inflammation Steroid Side Effects: “Cushing’s Syndrome” Gluconeogenesis Osteoporosis Physical changes – Increased fat production and redistribution – Acne – Hirsutism – Fragile skin Sodium retention – Fluid retention – Potassium loss and metabolic alkalosis Increased gastric acidity Decreased resistance to infection – MDI may cause candida albicans, “thrush” – Patients need to rinse mouth after MDI Dependency – Both physical and psychological • Patients may need to be weaned from steroid therapy Interaction with other drugs Increased breakdown in the presence of: – Dilantin, barbiturates, certain tranquilizers, antihistamines, ephedrine Decreased breakdown (and greater chance of severe side effects) in the presence of some antibiotics, eg erythromycin Steroids in Respiratory Care For prevention of inflammation – aerosol For relief of inflammation: systemic Hydrocortisone Brand name(s): Solu-Cortef, Cortef Given orally or IV Not usually aerosolized because of side effects Prednisone (Prednisolone) Brand: Deltasone, Delta-Cortef 4X as potent as hydrocortisone Given orally – Side effects minimized if given every other day – Patient’s usually need to be weaned from it Methylprednisolone Brand: Solu-Medrol Oral or IV – Often used to help relieve airway inflammation Triamcinolone Brands: Azmacort, Kenalog MDI- to prevent airway inflammation Dexamethasone Brand: Decadron Often nebulized for acute upper airway inflammation – What else is used with it? Beclomethasone Brands: Vanceril, Beclovent, Becotide MDI– to prevent airway inflammation Mometasone Furoate Brand: Asmanex DPI “Twisthaler” 220mcg per pff Started as one puff per day in then evening and may go as high two puffs BID Flunisolide Brand: AeroBid MDI – to prevent airway inflammation Usually effective when given only BID Fluticasone Brand: Flovent MDI (similar to Flunisolide) Fluticasone is also sold as a combo drug, Advair, which contains fluticasone and salmeterol – Taken as a dry powder inhaler (DPI) Budesonide Brand: Pulmicort MDI – to prevent airway inflammation Seems to get best effects with minimal side effects NSAIDs Drugs that prevent airway inflammation but usually have less side effects than steroids Cromolyn Sodium Brands: Intal, Aarane Is a mast cell stabilizer so used to prevent airway inflammation – Does not relieve airway inflammation! Often used as an alternative to aerosol steroids in children Administered via Spinhaler (DPI), MDI, nebulizer – Usually needs to be administered Q.I.D. – May take at least two weeks before any effects are seen Nedocromil Sodium Brand: Tilade Similar to cromolyn sodium (used to prevent airway inflammation) MDI – usually only needed B.I.D. NSAIDs: Leukotriene Inhibitors (used to prevent airway inflammation) Zafirlukast (Accolate) – Taken as a pill B.I.D. Zileuton (Zyflo) – Taken as a pill Q.I.D. Montelukast (Singulair) – Taken as a pill just once a day NSAIDs: Omalizumab (Xolair) Genetically engineered recombinant humanized monoclonal antibody Binds to IgE and prevents it from attaching to mast cells Given sub-Q 1-2 times per month Case Study Time!