Week 7: Cough and Cold Flashcards
What is the most common cause of common colds?
Rhinovirus
What is the onset of common colds?
12-36hr lasting 1-2weeks
What does common colds cause?
Inflammation of the membranes that line nose and throat
Sinuses and missle ear are involved
What are the common cold symptoms?
- Sore throat
- Nasal stuffiness and discharge (clear, thick, or yellow/green)
- Dry cough mostly at night
- No fever or low-grade
What is the epidemiology of common colds?
- No difference between gender or ethnicityy
- Mostly in winter
- Can be life threatening to vulnerable groups
- No cure only treatment of symptoms
How are common colds transmitted?
- Touching contaminated surfaces than eyes, nose, mouth
- Hand to hand contact
- Aerosolized particles
How are common colds prevented?
- Hand washing
- Hand sanitizer
- Covering cough and sneezing
- Masks
Who is excluded from cold self-care?
- Persistant sore throat, fever, headache, nausea, or vomiting
- Symptoms worsen with OTC
- Bacterial infection
- Age
- Concurrent underlying diseases
What are the pharm treatments from colds?
- Decongestants
- cough suppressants and expectorants
- Antihistamine
- Analgesiscs
- Antipyretics
- Local anesthetics
What are nonpharm treatments for colds?
- Increase liquid and reexamine diet
- Adequate rest
- NAsal strips, saline spray, aspirator, and aromatic oils
- Humidifier/vaporizer
- Sleep with elevated head
What is the caution using decongestants?
Cation in patients with CVD, hyperthyroidism, diabetes, and enlarged prostate
What are examples of decongestants?
- Pseudoephedrine
- Phenylephrine
- Levmetamfetamine
- Naphazoline
- Oxymetazoline
- Propylhexedrine
What is pseudoephedrine?
- Alpha/beta agonist
- Liquid and tablet
- Immediate and long acting forms
- Sudafed
What is the stimulation of alpha receptors?
Vascocontriction in respiratory mucosa
What is the stimulation of beta receptors?
Bronchial relaxation, increased heart rate, and increased contractility
What is the pseudoephedrine restriction in MS?
3.6g per day and 7.2 g per month
What is the pseudoephedrine restriction (federal)?
3.6g per day and 9 g per month
Patients must supply their ID
What is phenylephrine?
- alpha adrenergic agonist
- Liquid and tablet
- Sudafed PE
What are the common side effects of pseudoephedrine and phenylephrine?
- Increases HR and BP
- Dizziness
- Excitability
- Hallucinations
- HA
- Insomnia
- Wosening heart failure
What are the counseling points for oxmetazoline (Afrin spray)?
- Not for 6 and younger
- May be used as acute relief in 3rd trimester
What is the counseling point for Propylhexedrine/Benzedrex Inhaler?
- Discard 3 months after opening
- Abuse/misise potential
What is the counseling point for naphazoline/privine spray?
- ALternative strength available for 6-12YO
- Not for under 6
What is the counseling point for Levemetamfetamine/Vicks inhaler?
- Discard 3 months after opening
- Don’t use more than 7 consecutive days
What is the counseling point for phenylephrine spray?
May be an acute relief for pregnancy
What are the side effects of topical decongestants?
- Burning/stinging
- Dry nose
- Runny nose
- Sneezing
What is the counseling point for all topical decongestants?
Rebound congestion so limit to 3 days
What topical nasal decongestants can be used for 2-6YO?
- Oxymetazoline (0.025mg/mL): 2-3 drops each nostril Q10-12H
- Phenylephrine (0.0125mg/mL): 2-3 drops Q4H
What are OTC products for sore throat?
Lozenges and throat sprays
API of lozenges for sore throat?
- Benzocaine
- Menthol
- Pectin
- Dyclonine
API of throat sprays?
Phenol
Counseling points for using a nasal spray?
- Use the same side hand to pull your nose open and spray away from your septum. Spray it outwards.
- Use small sniffs.
- Do NOT snort! you will swallow the medicine and it will taste bad
- Lean your head forward NOT backwards.
What is the difference between 1st and 2nd get antihistamine?
1st is Sedating
2nd is non-drowsy
What are examples of 1st gen antihistamine?
- Diphenydramine (Benadryl)
- Brompheniramine
- Chlorphenirame
What are examples of 2nd gen antihistamine?
- Loratidine (Claritin)
- Certirizine (Zyrtec)
- Fexofenadine (Allegra)
What are the DDIs associated with antihistamine?
- Alcohol
- CNS depressants
- Anticholinergic
- Potassium chloride (increasing risk of stomach ulcers)
What is the ADR of sedating antihistmines?
- Chlorpheniramine can increase effects of phenytoin
- Diphenhydramine increase effects of metoprolol and brexiprazole
What are the ADRs of non-sedating antihistamine?
- Fexofenadine interacts with ketoconazole, erythromycin, and antacids, fruit juices
- Loratadine interacts with amiodarone
What kind of drugs are used for sore throat?
Local anesthetics and non-drug measures
What kind of drugs are used for pain and fever?
Systemic analgesics and antipyretics
What is the the dose of fever analgesics for children?
Weight based not age based
What are complementary therapies for cold?
- Echinacea
- Elderberry
- Honey
What is the caution using echinacea?
Drug interaction with CYP3A4substrates with low oral bioavailibity (verapamil, cyclosporine, and tacrolimus)
What is the caution using elderberry?
Possible decrease in effects of immunosuppressant agents
What is the caution using honey?
Should not be given to children younger than 1 year with risk of botulism
What is the important defensive reflex for airway protection?
Cough
What are the characteristics of acute coughs?
- Less than 3 weeks
- Virul URTI, acute bacterial sinusitis, bronchitis, pertussis, pneumonia
- Allergic rhinitis
- COPD exacerbations
- Environmental irritants
What are the characteristics of subacute coughs?
- 3-8 weeks
- Postinfectious
- CHF with fluid overload
What are the characteristics of chronic coughs?
- (8+ weeks)
- Asthma or asthma-like conditions
- UACS
- GERD
- COPD, chronic bronchitis
What are the exclusions of coughing self-care?
- Dyspnea
- Weight loss
- Hemoptysis
- Night sweats
- 100.4 oral temp
- Worsening cough 3-5 days
- Less than 4 YO
- Immunocompromised
- Barking or whooping cough
- Tuberculosis
- Chronic illness
What is a wet cough?
- Productive (chesty)
- Effective or ineffective
- Secretions are clear with bronchitis and purulent
- Malorder due to anaerobic bacterial infections
What is a dry cough?
- Nonproductive (hacking)
- Viral and atypical bacterial infections, GERD
- Serves no physiologic purpose
What are the treatment goals of coughs?
- Reduce the number and severity of coughing episodes
- Prevent complications
- Ultimately recognizing the underlying disorder or condition, required for effective and definitive management
What are the non pharm treatment for coughs?
- Lozenges
- Humidifier
- Water
- Saline rinse
- Elevated sleeping
What are the pharm treatments for coughs
- Robutussin
- Delsym
- Mucinex
Codeine?
Onset:
Duration:
Contraindications:
O: 15-30 min
D: 3-6 hours
C: Children 6-12 and 2-6
Dextromethorphan hydrobromide?
Onset:
Duration:
Contraindications:
O: 15-30 min
D: 4-6 hours
Dephenhydramine HCl?
Onset:
Duration:
Contraindications:
O: 15 min
D: 4-6 hr
Guaifensin contradiction?
Not for chronic cough
OTC oral antitussives and expectorants?
- Codeine
- Dextromethorphan Her
- Dephenhydramine HCl
- Guaifensin
What are the topical antitussives for adults and children older than 2?
- Ointments
- Lozenges
- Inhalation
what are the diphenhydramine DDI?
- Brexpiprazole
- Metoprolol
- Anticholinergics (Ipratropium, tiotropium, umeclindinium)
What are the dextromethorphan DDI?
- Strong CYP2D6 inhibitors
- Serotonin reuptake inhibitors
- MAO inhibitors (rasagiline, selegiline, isocarboxazid, phenelzine, trranycypromine)
Interaction between diphenhydramine and brexiprazole
- Increased risk of brex toxicity
- Reduce brex dose by 25% or avoid combo
Interaction between diphenhydramine and metoprolol?
- Increased metoprolol serum concentrations and hypertension
- Reduce metoprolol dose or avoid combo
Interaction between diphenhydramine and anticholinergics?
- enhanced anticholinergic effect
- Avoid combo
Interactions between dextromethorphan and strong CYP2D6 inhibitors?
- Inhibitors decrease dex metabolism increasing psychoactive effects
- Avoid concurrent use
Interactions between dextromethorphan and serotonin reuptake inhibitors?
- Modulators increase serotonergic effects of dex
- Avoid concurrent use
Interactions between dextromethorphan and MAO inhibitors?
- MAO inhibitors increase dex and serotonergic adverse effects
- Avoid concurrent use
Special pop use for codeine?
- Not for children
- Increased congenital birth defects
- Excreted in milk and drowsiness in infants
- Sedation of older adults
Special pop for dextrometorphan?
- Safe for pregnancy
- Not know for milk
- Sedation of older adults
Special pop for diphenhydramine?
- Pregnancy
- Excreted in milk and irritable infants, decrease flow of milk
- Elderly: dizziness, sedation, confusion, hypotension (Beers criteria)
- Children and elderly, paradoxical excitation (restlessness and irritability)