R x Respiratory illnesses Dr. Kamal Kishore M.D.(Ayu)
Contents Drugs used for cough Drugs used for Asthma/COPD Protocols for asthma management Protocols for COPD management Antimicrobials for Respiratory infections
Drugs used for cough
DRUGS FOR COUGH Pharyngeal demulscents Demulscent – to caress soothingly Increases flow of saliva Reduces afferent impulses from irritated mucosa EXAMPLE- Glycerine. Menthol, liquorice, honey, lozenges
DRUGS FOR COUGH Expectorants – Mucolytics Acetyl Cysteine – Po 200-600mg e.g. mucinac tab. Ambroxol – po 30/75mg e.g . mucolite tab BromHexine (derivative of alkaloid Vascine from adhatoda vasica ) po 4/8mg e.g. bromex tab/syrup
ANS = PNS + SNS PNS (rest digest) constricts bronchioles through Ach SNS (Flight Fight) Dilates Bronchioles through Adr . NorAdr .
Inhalers Metered Dose Inhalers MDI Dry Powder Inhalers DPI Nebulizers NEB Also called as pMDI i.e. pressurised MDI Have propulsion system e.g. hydroflouroalkanes Can be used with a spacer device Medicines is packed in capsules known as Rotacaps / Transcaps Allows larger dose administration of medicines Suitable for kids Medicines are packed in respules Needs a Nebulizer machine for dispensing the medicine.
Bronchodilators – Sympathomimetics - SABA & LABA Sympathomimetics/B-Sympathomimetics/B-Agonists Mimics Sympathetic nervous system thereby dilates bronchioles Two types Short acting b agonists (SABA) Long acting B agonist (LABA)
Broncho di lators SABA Albuterol /Salbutamol Terbutaline PO - 2/4/8 mg INJ (IV/IM/SC) – 0.25/0.5mg/ml INH – 50/100/120 mcg/puff PO – 2.5/5 mg INJ - 0.25/0.5 mg/ml INH – 250/500mcg/puff
Broncho di lators LABA Salmeterol Formoterol INH – 25/50 mcg/puff INH – 16/12/24 mcg/puff LABA are not preferred as monotherapy LABA are most effective on combination with ICS
Bronchodilators – paraSympatholytics - SAMA & LAMA paraSympatholytics /Anti cholinergic/Anti muscarinic anti to paraSympathetic nervous system thereby dilates bronchioles Two types Short acting anti muscarinic agents (Sama) Long acting anti muscarinic agents ( LAma )
Broncho di lators SAmA Ipratropium bromide INH MDI/DPI 40/80 mcg/puff Respules 250/500 mcg/ml
Broncho di lators lAmA Tiotropium bromide INH – MDI/DPI – 9/18mcg/puff
Bronchodilators – methyl xanthines Causes inhibition of phosphodiesterase leading to increase in c AMP thereby causing short acting bronhcodilation Not very popular in use due to toxicity (arrythmias & seizures) Methyl xanthines are plant metabolites – caffeine, theophylline and theobromine Theophylline group Aminophylline Etophylline Theophylline Doxophylline Acebrophylline
Broncho di lators M E xa Aminophylline Doxophylline Theophylline Acebrophylline PO – 100/125/300 mg INJ – 250mg/2ml IV PO – 400/800 mg PO – 100/300mg PO – 100/200mg
Broncho di lators c Ombinat ion LABA + LAMA SABA + SAMA Salbutamol (SABA) + Ipratropium bromide (SAMA) Formoterol (LABA) + Triotropium bromide (LAMA)
Broncho di lators c Ombinat ion SABA + MEXA Salbutamol (SABA) + Theophylline (MEXA) Terbutaline (SABA) + Doxophylline (MEXA)
Broncho di lators c Ombinat ion MEXA + MEXA Etophylline (MEXA) + Theophylline (MEXA) DERIPHYLLIN
ANS = PNS + SNS PNS (rest digest) constricts bronchioles through Ach SNS (Flight Fight) Dilates Bronchioles through Adr . NorAdr .
Broncho di lators c Ombinat ion ICS + LABA Budesonide (ICS) + Formoterol (LABA ) Fluticasone (ICS) + Salmeterol (LABA)
ANS = PNS + SNS PNS (rest digest) constricts bronchioles through Ach SNS (Flight Fight) Dilates Bronchioles through Adr . NorAdr .
Leukotriene antagonists Montelukast Zafirlukast PO – 10mg PO – 20mg
M ast cell stabilizers Sodium cromoglicate INH - 5mg/puff
Anti I g E Antibody Omalizumab INJ – 150mg/1.2ml SC
protocols for Asthma management
Controller medicine Reliever medicine
protocols for COPD management
Antimicrobials for respiratory infection
Acute bacterial rhinosinusitis (ABRS) First line antimicrobials (5-7 days) Amoxicillin-clavulanate 500mg/125mg PO tid or 1gm/125mg PO BD Moxifloxacin 400mg PO od Doxycycline 100mg PO bid Second line antimicrobials (7-10 days) Amoxicillin–clavulanate 2000mg/125mg PO bid Levofloxacin 500mg po OD Pharyngitis (GAS-pharyngitis) Benzathine penicillin G 1.2 million units IM for single dose Penicillin V 500mg Po BID Amoxicillin 500mg PO Tid Cefadroxil 500mg PO BID Azithromycin 500mg po OD on DAy1 f/b 250mg Po od from 2 nd – 5 th day
Acute bronchitis No antimicrobial required, only cough managment Influenza Oseltamivir 75mg Po BID for 5 days Zanamivir 10mg inhalations BID for 5 days Pneumonia For previously healthy patients / no use of antimicrobials within previous 3 months For patients with co morbidities / use of antimicrobials within previous 3 months MACROLIDE/DOXYCYCLINE Azithromycin 500mg OD on first day f/b 250mg OD for next 4 days Clarithromycin 500mg bd Doxycycline 100mg BID B-LACTAM + MACROLIDE/DOXYCYCLINE RESPIRATORY FLUOROQUINOLONES B LACTAM = Amoxicillin 2000mg/125mg BID or Cefpodoxime 200mg BID or Cefuroxime 500mg BID MACROLIDE = Azithromycin 500mg OD on first day f/b 250mg OD for next 4 days RESP. FLUOROQUINOLONES = Levofloxacin 750mg OD, Moxifloxacin 400mg daily, Gemifloxacin 320mg BID