Tuesday, June 30, 2015

1. Respiratory system (7)

A. NOSE :-
3. Sinusitis :- (part 2)

ACUTE SINUSITIS 

1. DEFINITION:-
Acute inflammation of mucous membrane lining the sinuses +/- nose 

2. ETIOLOGY :-

A. Causative organisms :-
1. BACTERIA:-

  • Streptococci Pneumoniae
  • Staphylococcus Aureus
  • H. influenza 
  • Moraxella   Catarrhal 
  • Klebsilla 
2. FUNGAL:-

  •  Mucormycosis ( very fatal, occurs with diabetic patients)
3. VIRAL :-

B. ROUTE :-

  1. Nose 
  2. Dental to maxillary sinus 
  3. External through open fractures of sinus 
C. PREDISPOSING FACTORS :-

  1. Allergic sinus 
  2. Divided nasal septum 
  3. Rhinitis 
  4. Immunocompromised  patients 

3. PATHOLOGY:-
  1. Suppurative ( purulent discharge )
  2. Non - suppurative ( catarrhal discharge)
4. CLINICAL PICTURE :-

A. SYMPTOMS :-
  1. Nasal discharge :-
  • purulent in case of suppurative acute sinusitis 
  • watery in case of non - suppurative acute sinusitis 
     2.  Nasal obstruction:-
  • Unilateral or bilateral 
     3. Anosmia 
     4. Headache :-
  • especially in the morning 
  • increased with cough and strain
  • especially areas over the sinus 
     5.  Epistaxis 
     6.  General Fatigue and malaise  

  B. SIGNS :- 
  1. Nose ( Edema, Congestion )
  2. Throat ( postnasal discharge )
  3. Tenderness over the affected sinus 
  4. Fever 
  C. INVESTIGATIONS :- 
  1. Radiology ( X- ray and CT scan )
  2. Bacteriology ( culture and sensitivity tests )
  3. Immunology ( for allergic causes )

Image result for symptoms and sinus of sinusitis

SPECIAL THANKS 
DR. MINIA EZT 

THANKS 
MILAD REDA 

Monday, June 29, 2015

Pharmacy To Be Easy : Respiratory system (6)A. NOSE :-3. Sinusitis :-...

Pharmacy To Be Easy : Respiratory system (6)
A. NOSE :-

3. Sinusitis :-...
: Respiratory system (6) A. NOSE :- 3. Sinusitis :- ( part 1)     Inflammation of the mucous membrane which lines the paranasal sinus cavi...
Respiratory system (6)
A. NOSE :-

3. Sinusitis :- ( part 1)
    Inflammation of the mucous membrane which lines the paranasal sinus cavity .

1. Sinus :- 
  • Bony structures filled with air 
  • when filled with fluids ( bacteria, viruses and fungi can grow )
  • structure of paranasal sinuses  :- 
  1. Frontal sinus
  2. Maxillary sinus 
  3. Ethmoid sinus 
  4. Sphenoid sinus 
NORMAL STRUCTURE :-


INFLAMED STRUCTURES

Image result for Sinusitis

  • Function of sinus :- 
  1. Accommodation  of air temperature 
  2. Lighting weight of the skull 
  3. Resonance of the voice 
2. Types of sinusitis :- 
  1. Acute :-
  • Suppurative ( allergic the most )
  • Non - suppurative 
     2. Chronic :-
  • Specific 
  • Non - specific  
3. Symptoms :-
  • Headache or facial pain/ pressure ( morning or postural headache )
  • Nasal discharge 
  • Nasal congestion 
  • Cough ( post nasal drip)
  • Fever 
  • In rare cases ( Epistaxis )
Types  and Symptoms will discussed next time in details. ( part 2)

BOOKS FOR TRAINING:-

FIRST BOOK:-
BNF ( British national formulary )

TO DOWNLOAD :-
https://app.box.com/s/cvprd78mc7nsjl00daj47up9eq20dpjs


THANKS 
MILAD REDA 

Saturday, June 27, 2015

Pharmacy To Be Easy : Respiratory System (5)A. NOSE:- Common cold and ...

Pharmacy To Be Easy : Respiratory System (5)

A. NOSE:- Common cold and ...
: Respiratory System (5) A. NOSE:- Common cold and Flu ( part 3) TREATMENT :-  2. Antihistamines:-  A. ACTION:-  block histamine re...
Respiratory System (5)

A. NOSE:- Common cold and Flu ( part 3)

TREATMENT :- 

2. Antihistamines:- 

A. ACTION:- 

  • block histamine receptors 
  • block histamine release from mast cells 
  • decrease inflammation and edema 
 B. CLASSIFICATION :-

1. FIRST GENERATION ( sedating ) :- 


        A. sedating :-
  • Bromopheniramine 
  • Chloropheniramine 
      B. high sedating :-
  • Clemastine 
  • Diphenhydramine 
  • Doxylamine 
  • Promethazine 
      C. Minimum  sedating :-
  • Cetrizine 
  • Chlorcyclizine 
  • Meclizine 
  • Levocetrizine 
2. SECOND GENERATION ( non-sedating ) :-
  • Fexofenadine 
  • Loratidine
  • Phenindamine 
C. USE:-
  • used to treat symptoms as 
                                           1. Sneezing 
                                           2. Itching 
                                           3. Rhinorrhea 

D. DOSE :- 

Antihistamines Doses
No.
Drug
Dose / day
Above 12 year
6- 12 year
2 – 6 year
1
Bromopheniramine
24 mg
12 mg
No
2
Chloropheniramine
24 mg
12 mg
No
3
Cetirizine
10 mg
5 – 10 mg
2 – 5 mg
4
Diphenhydramine
300 mg
150 mg

5
Doxylamine
75 mg
37,5 mg

6
Loratidine
10 mg
10 mg
5 mg
7
Fexofenadine
180 mg
60 mg


E. OVERDOSE :-
 Over dose of sedating drugs can lead to :-
  1.   Toxic psychosis 
  2.   Hallucination 
  3.   Insomnia 
  4.   Tonic - clonic seizures 
  5.   Tachycardia 
  6.   Urine retention 
 Over dose of non - sedating drugs can lead to :-
  1.  Headache 
  2.  Tachycardia   
F. SIDE EFFECTS:-

1. Mainly sedation and drowsiness in case of sedating drugs 
2. Anexity 
3. Hallucination
4. Dryness of ( eye, mouth, vagina)
5. constipation  

G. DRUG INTERACTIONS:- 

1. Alcohol
2. Benzodiazepines 
3. Barbiturates 

H. CONTRAINDICATIONS:-

1. Newborns and infants 
2. Lactating mothers ( all antihistamines secreted in milk)
3. Glaucoma ( narrow angle)
4. Acute asthma
5. Peptic ulcer
6. Prostate hyperatrophy 
7. Bladder obustraction 
8. Epilepsy 
9. Liver disease 
10. Chronic bronchitis 

I. CAUTIONS :- 
 
DO NOT USE SEDATING DRUGS WITH 
  1. Drivers 
  2. Factory workers 
  3. Machine workers    

J. NOTE :- 

Antihistamines ...... photosensetizing agents 
patients must avoid sun exposure  or wearing  protective cloths or use sun screen 


3. ANALGESICS AND ANTIPYRETICS :-           

Most common used in cold preparations 
  1. Paracetamol
  2. Aspirin 
  3. Ibuprofen 
4. Other products :-
  1. Cough preparation ( dextromethorphan and guaifenesin )
  2. Vit. C
  3. Herbal products ( eucalyptus, thymol, menthol, camphor, tilia , fennel)
  4. Vaccines 
  5. Antibiotics 
5. MARKET :- 

1. COMBINATION OF (chloropheniramine+pseudoephedrine+paracetamol)

  1.  1   2   3® 
  2.   Babyrhino®
  3.   Cetal cold and flu®
  4.  Cold free® 
  5.  Congestal® 
  6.  Fever n flu®
  7.  Flumol ®
  8.  Flupy x® 
  9.  Flustat ®
  10.  Neomichealon® 
  11.  No flu® 
  12. Panadol cold and flu® 
  13. Rhinomol s ®

2. Same combination + Caffeine 

1. Flurest
®
 
2.  Coldact
®
 
3.  Coldex 2 
®
4. Flustop
®
 
5. Nova c n
®
6. Power cold and flu
®
 

3. Combination with Ibuprofen 
  1. Sinlerg 
    ®  
  2. Cetaphed® 
  3. Brufen flu 
    ® 
  4. Brufen cold 
    ®
  5. Advil cold and sinus® 
  6. Dolo d
    ®
  7. Farex 
    ®
  8. Powercaps 
    ®
  9. Rhinofen® 
4. Combinations containing Vit. C :-
  1. Euopack plus® 
  2. Flu C®
  3. Grippostad C® 
  4. GC  mol® 
  5. Ezmol c ®
  6. Panadol cold and flu ®
  7. Cidal c® 
5. Combinations containing ASPRIN :-
  1. Vegaskine d®
  2. Cidal c ®
6. Combinations containing Dextromethorphan :- 
  1. Cold stop® 
  2. Congestal syrup® 
  3. Vegaskine d®
  4. Triaminic cold and cough ®
  5. Day nurse ®
  6. Vicks day quil®
  7. Tylenol cold ® 
7. Combinations containing non- sedating antihistamines :-
  1. Decongess 1 ®
  2. Decodine plus® 
  3. Clarinase® 
  4. Allercet® ( minimum sedation or negligable )
  5. Loratin d ®
  6. Trimed flu 
  7. Xinase® ( minimum sedation ) 
8. Other combinations :-
  1. Cometrex ®
  2. Balkis ®
  3. Otrivin ®
  4. Cafamol ®
  5. Conta flu ®
  6. Night and day® 
  7. Sine up® 
9. Herbal products :-
  1. Immuno flu® 
  2. Vapozol ®
  3. Propolis Lemon ®
  4. Sekem cold and flu®


6. DEALING WITH SPECIAL CASES:-

1. Infants and children :-
  • Use low doses 
  • Use syrup dosage forms 
  • For nose ...... use Otrivin® children   or baby saline according to age 
  • Avoid products containing ASPIRIN  ( Ray's syndrome )
2. Cardiovascular :-
  • Avoid decongestant ( especially systemic )
  • Use topical decongestant in low doses 
  • Use combination of analgesic + antihistamines + topical decongestant 
3. Diabetes :-
  • Avoid products containing systemic decongestant 
  • Avoid syrups containing sugars 
4. Pregnancy :-
  • Avoid combinations 
  • most of systemic decongestant is contraindicated 
  • Use 
  1. Topical decongestant as Oxymetazoline ( Affrin® )
  2. Use Herbal products as Vapozol®       and    Flonaz® 
  3. Use analgesics  as Paracetamol ( paramol®, panadol®, adol® )
  4. Use Antibiotics ( if needed) as Amoxicillin ( Amoxil®)
  5. Use analgesics + Vit. C  combinations  as ( Cevamol® )
  6. Use packets as ( Sekem Flu®)
5. Lactating Mothers :-
  • Avoid decongestant as decrease milk production 
  • Use nasal phenylephrine 
  • Must avoid topical oxymetazoline (Affrin®) and naphazoline 
  • Use analgesics as Paracetamol and avoid Aspirin 
  • Use herbal products as above 
  • Must drink large amounts of fluids 
6. Liver disease :-
  • Avoid decongestant and antihistamines in severe cases 
  • USE topical products  as Otrivin®         Vapozol® 
  • Use analgesics as ........... Hepamol® 
  • Must decrease doses in systemic drugs 
7. Workers and drivers :-
  • avoid products containing sedating antihistamines 

OTHER PRODUCTS :-

1. ANTIVIRAL :-
  • AS Amantadine 
2. VACCINES :-
  • Used in patients who are at high risk to influenza 
  • avoid in case of flu+ fever ( wait until recovery to get vaccinated )
  • Used in October 
  • EX:-
  1. Hiberix® 
  2. Agrippal®
  3. Fluarix ®
  4. Influvac® 
  5. Vaxigrip® 
THANKS 
MILAD REDA 
   

Thursday, June 25, 2015

Pharmacy To Be Easy : Respiratory  System(4)1. Nose :-  Common cold an...

Pharmacy To Be Easy : Respiratory  System(4)

1. Nose :-  Common cold an...
: Respiratory  System(4) 1. Nose :-  Common cold and Flu ( Part 2) Treatment :-  A. Asking :-  You must know the following information ...
Respiratory  System(4)

1. Nose :-  Common cold and Flu ( Part 2)

Treatment :- 

A. Asking :- 
You must know the following information before starting OTC treatment 

1. Age :- 

  • approximative age of patient 
  • child or adult or elderly 
  • Age affects the following  
                                 1. choice of suitable treatment 
                                 2. choice of suitable dose 
                                 3. choice of suitable dosage form 

  • children more susceptible to respiratory infections 
  • elderly and above 65 years ............. at risk 
2. Onset of symptoms :- 
  • Rapid onset means Flu (influenza )
  • Gradual symptoms means Common cold 
3. Runny or Blocked Nose:-
  • Runny nose ........... occurs at first days 
  • start with rhinorrhea and clear watery fluid 
  • then ........ production of thick mucous and may be purulent 
  • Blocked ............. Occurs due to vasodilation of blood vessels in nasal mucosa and swelling of leaning surface and production of thick mucous discharge 
  • Clear nose ......... most common in flu 
4. Summer cold :-
  • Flu and common colds more common in winter months 
  • summer symptoms as 
                                     1. Congestion 
                                     2. Sneezing 
                                     3. Irritant watery eyes 
( more likely due to Allergic Rhinitis not a common cold or Flu)

5. Sneezing /Cough:-
  • most common with colds 
6. Headache :- 
  • Occur due to inflammation and congestion of nasal passages and sinuses 
  • pain above or blow eyes due to Sinusitis 
  • Patients with Flu having 
                                        1. more headache and pain 
                                        2. more muscle and joints pain 

7. High temperature:-

  • Common cold ................. Low grade fever 
  • Flu .............. High grade fever ( 37,9- 38,9  c )
8. Sore throat:-
  • feels dry and sore 
  • More common in Colds than Flu
  • sometimes be the FIRST symptom of Common Cold 
9. Earache :- 
  • common complication of common cold 
  • indicates .......... Otitis media 
  • Especially in children 
  • occur due to blocking of Eustachein tube ( connect between middle ear and nose )
10. Facial pain and frontal headache :-   
  • strongly indicates Sinusitis ( next topic )
11. History :-
  • Ask about the following :-
                     1. Medications ( to avoid interactions with OTC drugs )
                     2. Diseases ( CVS, Diabetes , CNS , Liver, Renal ) 

B. Refer :- 
When to refer to physician :-
  1.       Fever more than 38.9 C 
  2.       Elderly ( age above than 65 years )
  3.       Infants ( less than 9 months )
  4.       Chest pain 
  5.       Earache 
  6.       Asthma 
  7.       Concurrent diseases 
C. Non-Pharmacological Treatment :-
  • Increase fluid intakes 
  • Bed rest 
  • Good nutrition 
  • Using of humidifier  or vaporizer ( steam )
  • Using of tea, lemon , honey , orange , soaps  

D. PHARMACOLOGICAL TREATMENT:-

Most products of common cold and flu available in market present in a combination of two or three of the following categories :-
  1. Decongestant 
  2. Antihistamines 
  3. Analgesic and Antipyretics 
  4. Vitamin c 
Other medication can be used as ;- 
  1.   Cough Products 
  2.   Antibiotics ( complications )
  3.   Antivirals 
  4.   Vaccines 
1. Decongestant:-

A. Action:- 
Used to relieve  congestion by blood vessels vasocostriction and decrease edema

B. Classification :-

3 types of decongestant present :-
  1. Direct Decongestant ( acts directly on receptors):-
  • phenylephrine 
  • oxymetazoline 
  • tetrahydrozoline 
     2. Indirect :-
  • ephedrine 
     3. Mixed type :-
  • pseudoephedrine 
Decongestant available as OTC treatment :-
  1. Systemic Decongestant :-
  • phenylephrine
  • pseudoephedrine
     2. Nasal Decongestant:- 
            A. Short Acting :-
  • ephedrine 
  • epinephrine 
  • naphazoline 
  • phenylephrine 
  • propyl hexidine 
  • tetrahydrozoline 
           B. Intermediate Acting :-
  • xylometazoline 
           C. Long Acting ;-
  • oxymetazoline 
C. Dose of Decongestant :- 

No.
Drug
Dose  per day
Systemic decongestant
Age
Above 12 years
6 – 12
2 - 6
1
Phenylephrine. HCL
60 mg
5 mg
2,5 mg
2
Phenyehrine bitartarate
62 mg
7.8 mg
No
3
Pseudoephedrine
240 mg
30 mg
15 mg
Topical decongestant
1
Ephedrine  0.5 %
2 – 3 drops
1 – 2 drops
No
2
Naphazoline  0.5 %        0.025 %
2 – 3 drops
1 – 2 drops
No
3
Oxymetazoline  0.5 %         0.025 %
2 – 3 drops
1 – 2 drops
No
4
Phenylephrine 1%       0,5 %
2 – 3 drops
1 – 2 drops
No
5
Xylometazoline    0.1 %     0.05%
2 – 3 drops
1 – 2 drops
No

D. Over dose of decongestant :-

causes 1. CNS Stimulation 
            2. CVS Collapse 
            3. Shock 
            4. Coma 

E. Side effects of Decongestant :- 
     1. CVS ( elevated blood pressure, tachycardia )
     2. CNS ( restlessness, insomnia, hallucination)
     3. side effects more common in systemic than topical products 

G. Duration of therapy:-
   
1.     3- 5 days are the accepted duration of therapy to avoid rebound congestion 
2. treatment of rebound congestion :-
  • withdrawal of topical decongestant 
  • replace with nasal saline 
  • use systemic decongestant 
  • using of topical hydrocortisone 
  • mucosa will return to normal within 1 - 2 weeks 
H. Contraindications :- 
  • hypertension 
  • diabetes 
  • hyperthyroidism 
  • coronary heart disease 
  • prostatic hyperatrophy 
  • increased intra-ocular pressure (glaucoma ) 
I. Drug interactions :-  
  • patients receive MAOIs as 
                                          1. tranylcypromine ( parentil 10 mg )
  • TCAS ( amytriptyline)
  • betablockers  
                  
other treatment and market products .......................  NEXT TIME 
THANKS 
MILAD REDA