Colds 7.4 Flashcards
Steps of therapy
- Is this for yourself
- Bad enough to see a doctor: skip this step until you see the symptoms
- Isolate the most bothersome symptoms: tell me about whats happening
- Dry coughs, productive cough, nasal congestion, feverish
……..
non medical measures with cough and cold
i) Chicken soup (someone else makes it)
ii) Rest fluids
iii) Humidity: helps chest and nose somewhat
iv) Propping child up in car seat for head colds (seems to help drain things rather then them laying down, but be safe)
v) Saline gargles/ nose drops/ irrigation
vi) – Suction: When does a kid need saline ver may not/ Saline: stuffed nose to loosen it up for the bulb No saline: runny nose so already loosened
vii) Nose mists and gels (what to use for kids and adults): use mist with kids and gel for adults when have a raspy nose from blowing it so much
viii) Irrigation (neti pots)
ix) Sinus rinses: efficacy of sinus rinses: Allergic rhinitis-> chronic sinus-> colds/// when to use plain saline vs a moisturizing: plain= applied to a congested nose… moisturizing: allow for it to maybe soothe the nose
x) Are nasal strips good? Not really kinda trash but can try it
xi) Methanol and camphor: hits cool receptors in passageways and the air now seems cooler but congestion is still there and air is still same temp
When does a child need saline or not
Saline: stuffed nose to loosen it up for the bulb No saline: runny nose so already loosened
Sinus rinses
efficacy of sinus rinses: Allergic rhinitis-> chronic sinus-> colds/// when to use plain saline vs a moisturizing: plain= applied to a congested nose… moisturizing: allow for it to maybe soothe the nose
Methanol and camphor MOA
hits cool receptors in passageways and the air now seems cooler but congestion is still there and air is still same temp
Drug therapy’s for cough and colds
i) Oral decongestants
ii) topical decongestants
iii) Analgesics
iv) cough suppressants
v) Antihistamines
vi) Expectorants
What are the Oral decongestants
- Pseudoephedrine (pse)
- Phenylpropanolamine (not used anymore)
Phenylephrine (pe)
- Phenylpropanolamine (not used anymore)
What are the topical decongestants
- Oxymetazoline
Xylometazoline
what are the analgesics
- Acetaminophen
Ibuprofen
what are the cough suppressants
- DM
- Codeine
- Methol
- Diphenhydramine
Honey
what are the Antihistamines
- Chlorpheniramine
Diphenhydramine
what are the Expectorant
Guaifenesin
Does zinc/ soap aid in fighting colds
- Zinc not so much but soap yes works but how much do you wanna do it
What do aromatic compounds (menthol/ camphor) do (vics)
- Acts on cool receptors
- Vapo rub can be used down to 2 years and the baby rub is safer
Decongestant mechanism of action
- Noradrenalin-mediated decongestion
- Alpha receptors can get hit by adrenalin
The blood vessels were dilated and leaking which causes congestion
- Alpha receptors can get hit by adrenalin
Direct acting decongestant
goes right to the alpha receptors on the blood vessels
decongestant works by an alpha process of blood vessels, causes the
Blood vessels to shrink
- fast
- Direct acting works better as it stops at the site needed while inactive have more side effects as it goes everywhere
-only for nasal congestion
Indirect decongestant
same blood vessels that have a receptors, neurons are directing things
- Oral decongestants have a middle man, goes into stomach and is absorbed which is absorbed and some hits the neurons right next to blood vessel and makes noradrenalin
What is Sudafed
- contained pseudoephedrine
- It is the best oral decongestant, can be used to make meth and was thought of putting behind counter so made another version which wasn’t as good
- Both brand names are now gone
Is there absorption differences between phenylephrine and pseudoephedrine
- Yes there is due to mono amine oxidase (everyone has a different level of it in them)
a) Phenylephrine (sudafed PE): MAO has a big influence on how much is absorbed, less bioavailable
b) Pseudoephedrine (Sudafed): Didn’t care how much MAO you have and absorbed consistently, the amount that was given was absorbed
- This is why it is better
What does MAO degrade
Noedranalin (NE)
How to chose an oral vs topical decongestant
i) Preference
ii) Speed of onset (topical»>oral)
iii) Congestion+ other symptoms: Topicals need another agent, it only works for that specific thing
- Majority don’t buy two things for a cold
- Oral (syrups) can work for more then one symptom
iv) Side effects
Side effects of topical decongestants
- Rebound congestion
- Local irritation
Side effects of oral decongestants
- CNS effects
- Cardiovascular effects (bp, hr)
- Increase in blood glucose
- Angle closure glaucoma
- Urinary retention/ prostate
- Hyperthyroidism
What are decongestants related to
- Adrenalin/ amphetamines
- Is a stimulant so can have CNS effects
- Like having caffeine at night but wont necessarily keep you up
- Can get a buzz if you take enough (at 60 QID wont do much)
- Amphetamines increase heart rate and blood pressure, as decongestants are distant cousins it hits the a receptors in the blood and heart if it is taken orally. Topically will stay localized but oral will be promiscuous and go to many different locations of a receptors
- 3-5 blood pressure/ heart rate increase with orally decongestants
- Avoid decongestants when people are on blood pressure/ cardiac patients (likely will not cause more damage but more legalistic and don’t use now as a student) can go topical if they are on blood pressure/ cardiac meds
Why is Coricidin safe with people that have high blood pressure
- Made it safe by taking the decongestant out
- Does not help with contestants now
- Useless for almost everyone that has a cold
- NOT A GOOD MOOD WITH AVERAGE COLD
Oral decongestants in relation to increase in blood glucose (type 1/2 diabetes)
- If given adrenalin blood glucose goes up as you need energy now
- As a sister drug it also increases blood glucose
- Not usually worried for a diabetic taking a decongestant
A) Type 1: a bit more worries they don’t make their own insulin, can raise it but already monitor there blood pressure
B) Type 2: eating to much and is environmental. Almost 0 impact with decongestants- Campfire is your bodies metabolism: type 1 means your on a sick day and more glucose will make higher blood glucose from the virus (bigger fire), if you throw a decongestant In it is like throwing a tiny stick on the fire: it will burn more but is not worried clinically i) Legalistic so use a decongestant with caution if have type 1 diabetes
Can we recommend oral decongestants to type 1 diabetes
Legalistically we cant