L20: "Cures for Sale" - Reality Vs Distortion Flashcards
What is a wart? Is it common?
- Caused by a virus
- Many people experience warts in their lifetime
- It is not life threatening but it is bothersome
What are some traditional wart remedies? Why were they believed to be true?
- Rub with: miracle flowers, radish, raw potato and bury in clay
- Use dandelion flower milk
- Put an equal number of stones in a bag and bury it
These were believed because in reality, 80% of warts will disappear on their own in less than 2 years due to your immune system.
What is evidence based/conventional medicine?
- What is taught in school
- Does this drug work?
- What are the side effects?
There is no such thing as a perfect drug: if the drug works, it alters your biology and thus will lead to side effects in some. - Benefits outweigh side effects
- How does this drug compared to what is already available? Is there anything safer and better already available?
- Works better than a placebo
- Dpcumented
What is “alternative medicine”?
- No reliable evidence that they work
- Based on hearsay or folklore
- Marketing techniques: testimonials, tradition, belief system, folklore
- <40% of products used are reported to physicians and many have risks associated to them
- Can have dangerous drug-drug interactions
- Anyone can call themselves a herbalist and sell it
What must you know about a drug before you put it on the market? How is this determined?
- Very long and expensive process including many stages of research, including preclinical trials and clinical trials, that must be approved.
- Must know the mechanism of action of the drug, its pharmacokinetics, where it can be stored, its bioavailability, its acute and chronic toxicity, mutagenicity, if it is a teratogen.
What are the 2 methods used in drug evaluation?
- Double blind
2. Randomization
What is a double blind?
Neither the person giving the drug, nor the person receiving the drug, know if they are given the placebo or the active drug so that there is no psychological influence.
What is randomization?
Random distribution of placebo and active drug so that one group isn’t in greater health than the other.
What is a placebo?
Placebo means “I will please”
A sugar pill.
For a drug to be approved on the market it needs to have demonstrated significant superiority to the placebo.
Are placebo’s effective? What can influence this?
- Influence: Relationship to caregivers, ritual of taking medicine, and strength pf belief (the stronger we believe in the medicine, the greater the response)
- Effectiveness: around 35% will respond positively
- If you tell the subjects to watch out for side effects, about 15% will respond negatively: called “nocebo”
What are cold sores/fever blisters caused by? How can they be treated?
Caused by herpes simplex virus.
Treated by an antiviral drug that interferes with the replication of the virus without affecting human cells.
What’s the difference between pharmaceutical companies and natural remedies?
Pharma companies need to invest huge amounts of money to develop new products, the majority of which do not reach the market.
But anyone can sell natural remedies without proving anything.
Where do most natural remedies come from? What effect can this have?
They come from plants. Most plants are toxic.
What is Homeopathy?
A belief system of “like counteracts like” which means that we can fight a disease by giving something else that creates the same symptoms of said disease.
Did the original Homeopathy theory work?
No, it resulted in making the situations worse.
How did they modify the Homeopathy idea?
Potentisation: making something potent by diluting it.
- They believed that the properties of the drug would remain even after the drug was gone.
- Believed that vigorous shaking between the dilutions would “potentize” the water.
- Belief that the water retains a “memory” and can act “spiritually”
What are the steps of potentisation?
- Start with the initial compound (mother tincture) and sequentially dilute it 1:100
- Succussion: bang the vial between each dilution
- Repeat 30 times
- In doing so, you transfer the “magical compound” from the original compound into the water molecules, spiritualize/potentize the water.
- Final concentration 1/10^60 = basically just water, nothing left.
What makes people buy homeopathic remedies?
- There are “journals” and “academies” which back up homeopathy to make it sound legitimate
- Practitioners give patients a lot of attention and care before recommending the products to influence the patients
- Easy to purchase: drug store & internet
- Remember, the placebo affect of these drugs can be very strong if you feel as though someone really cares for you. Psychological benefit.