Herbal Pharmacology Flashcards

1
Q

What is traditional medicine?

A

knowledge, skills, and practice of a particular culture that is indigenous to them, and helps in prevention of disease.

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2
Q

What is complimentary alternative medicine?

A

health care practices used by a subset population (naturopathy, homeopathy etc).

  • not usually covered by health care
  • lacks scientific evidence
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3
Q

What is herbal medicine?

A

a mix between (TM and CAM)

-plant derived w/ therapeutic benefits

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4
Q

Why is herbal medicine cheaper than alternative meds?

A

-cheaper because readily available (grown vs synthesized)

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5
Q

Do you need a prescription?

A

No. For example morphine harvested from a plant does not require a prescription but morphine from a pharmacy does require one.

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6
Q

How does pharmacology come into play with herbal meds?

A

Example: willowbank -> aids in joint pain and antipyretic, but has gastric upset as a side effect.

Pharmacology controls ingredients and the dosage.

Basically in pharmacology they isolate the ingredient for the therapeutic effect (salicylic acid) but then was re-synthesized to acetylsalicylic acid so there would be no side effect.

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7
Q

What is acetylsalicylic acid?

A

Aspirin

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8
Q

How does natural pharmacology differ from herbal medication?

A

herbal drugs have many active ingredients whereas with the Pharmacology you take the isolated ingredient and have a standard protocol (single compound w a single dose) that is then regulated by the FDA.

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9
Q

The run down of the echinacea experiment

A

people were given echinacea and a placebo
those w echinacea had less colds, shorter durations and reduced viral infections.

Echinacea can be effective have no outcome.

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10
Q

What are the concerns with herbal pharm? UUDIP

A

Unknown constituents, debatable efficacy (not all products made equally) , placebo, inconsistency in preparation and uncharted drug interactions (CYP enzymes can be induced or inhibited).

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11
Q

Unknown constituents

A

Intrinsic: a chemical compound that may be unknown
Extrinsic: infestations in the plant, wrong part of plant harvested, cross contamination or other things deliberately added like fillers

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12
Q

Inconstancy in Preparations

A

intrinsic: genetic variation in species
extrinsic: environmental conditions, cultivation, collection procedures, soil, post collection methods for transport, and prep procedures. For example the solvents used may change the % of concentration. (Ex: cannabis)

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13
Q

What is the placebo effect?

A

A treatment with no therapeutic effect, and no pharmacological compounds. For example, acupuncture (as a sham treatment) or a sugar pill.

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14
Q

Why does the placebo effect work?

recall post surgery opioid example

A

Human belief is that medicine has ability to make you feel better, however it only works best on a subjective scale such as pain relief, happiness and mobility.

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15
Q

Herbal Medicine: Garlic

A

its active ingredient is allicin and has many benefits.

  • decreases blood pressure
  • decreases cholesterol synthesis
  • regulates blood sugar
  • antimicrobial
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16
Q

How much garlic do you need?

A

Garlic is generally safe but what is the conversion factor from food to medicine to give its therapeutic effect?

17
Q

How do we regulate herbal medicine?

A

have good manufacturing practices (isolate plant, harvest without contaminates, use same solvent for extraction), regulate claims of efficacy, and standardize manufacturing.

18
Q

What facilitates the regulation of herbal drugs in Canada?

A

NNPHD

19
Q

What do they regulate?

A

Packaging, sale manufacture, label, importance, distribution and storage

20
Q

What is an NHP?

A

a substance or homeopathic medicine represented for diagnosis, prevention of disease, restoring a function, modifying or promoting health

21
Q

Who grants the sale of the NHPS?

A

Ministry of health Canada

22
Q

What needs to be included in the license?

A

Contact info, ingredients with dosage and source material, non-medicinal ingredients, and info supporting efficacy and safety

23
Q

How to demonstrate NHP efficacy?

A

low risk = low evidence
Nightron - photocopy example
evidence must support ingredients w/ health claims supporting therapeutic efficacy

24
Q

What is an NPN?

A

8 digit identifying number linked to license application

25
Q

What is St. Johns Worts?

A

herbal anti-depressant. Its active ingredients are Hypericin and Hyperforin

26
Q

What is the mechanism of action?

A

it prevents neurotransmitter uptake and increase the S, Ne and D in the synapse.
The drug also binds to receptors so S, NE will bind and activate.

27
Q

Does St. John Worts have side effects?

A
  • it is a CYP 450 enzyme inducer

- do not take with Warfarin, HIV treatments, immunosuppressants, or oral contraceptives

28
Q

Types of claims

A

nutritional claims: rich in fiber
functional claim: calcium builds strong bones
health claims: this drug may help support immune system
medical claims: will treat/prevent disease