87 Questions
What is the primary role of the pharmacist with respect to NHPs?
To foster open communication and create a non-threatening environment
All NHPs have enough evidence to be routinely recommended.
False
What should be included in a medication review?
What else are you doing/taking to take care of your health?
According to the objectives, students should be able to evaluate the safety and efficacy of popular NHPs used by Canadians to prevent and treat the _______________.
common cold
What is the primary consideration for pharmacists when helping patients make informed choices about NHPs?
Evidence-based NHP information
The amount of literature on NHPs is decreasing.
False
The pharmacist's role is to help patients make informed choices by providing _______________ NHP information.
evidence-based
What is the primary goal of including NHPs in the pharmaceutical care process?
To assess the safety and efficacy of NHPs
What is the primary mechanism of action of Echinacea on the immune system? (Select all that apply)
Unclear, but appears to target both nonspecific and specific immune function
Echinacea has been shown to provide significant benefits for treating colds
False
What are the four groups of compounds that contribute to the immunomodulatory activity of Echinacea?
Alkamides, glycoproteins, polysaccharides, and caffeic acid derivatives (CADs)
Echinacea angustifolia roots contain _______________________ with anti-inflammatory properties
Alkamides
How many RCTs were included in the study on the efficacy of Echinacea for the common cold?
24
Echinacea products have been shown to provide significant benefits for preventing colds
False
Match the following compounds with their potential benefits
Alkamides = Anti-inflammatory properties Glycoproteins = Activation of macrophages and NK cells Polysaccharides = Activation of macrophages and NK cells Caffeic acid derivatives (CADs) = Anti-viral activity
What is the conclusion of the Cochrane review of 2014 regarding the use of Echinacea for treating colds?
Echinacea products have not been shown to provide benefits for treating colds, although, it is possible there is a weak benefit from some Echinacea products
What is the primary usage of Echinacea according to the pharmacology of Echinacea?
Immunomodulatory activity
What is the relative risk reduction of cold episodes suggested by the post hoc pooling of results in the Cochrane Review (2014)?
10% to 20%
Echinacea is generally not well-tolerated and has many adverse reactions.
False
What is the theoretical caution for using Echinacea in certain cases?
cases of chronic immune dysfunction and autoimmune conditions
Echinacea may theoretically interfere with __________________ therapy (e.g., cyclosporin, prednisone).
immunosuppressant
What is the recommended dosage form for Echinacea capsules?
500-1000mg three times daily
Echinacea has been reported to have significant changes in CYP enzymes.
False
What is the recommended dosage form for Echinacea tea?
2 tsp. (4g of Echinacea) of coarsely powdered herb simmered in 1 cup of boiling water for 10 minutes, daily for 5-7 days
Echinacea tincture (1:5) should be taken in a daily dose of equivalent to ________________________ dried Echinacea root.
900mg
Match the following dosage forms of Echinacea with their recommended daily doses:
Capsules = 500-1000mg three times daily Expressed juice = 6-9mL daily in divided doses Tincture (1:5) = 0.75 to 1.5mL, gargled then swallowed, 2-5 times per day Tea = 2 tsp. (4g of Echinacea) of coarsely powdered herb simmered in 1 cup of boiling water for 10 minutes
Echinacea is not recommended for prevention of cold episodes.
False
What is the primary goal of including NHPs in the pharmaceutical care process?
To assess the safety and efficacy of NHPs
What is the primary consideration for pharmacists when helping patients make informed choices about NHPs?
The weighs of safety and efficacy of NHP options
What is the role of the pharmacist in fostering open communication with patients?
To create a non-threatening environment for patients
What is the primary objective of including NHPs in the pharmaceutical care process?
To evaluate the safety and efficacy of popular NHPs
What is the primary consideration for pharmacists when evaluating the safety and efficacy of NHPs?
The weighs of safety and efficacy of NHP options
What is the primary role of the pharmacist in the pharmaceutical care process?
To evaluate the safety and efficacy of popular NHPs
What is the primary objective of the pharmaceutical care process?
To help patients make informed choices about NHPs
What is the primary consideration for pharmacists when helping patients make informed choices about NHPs?
The weighs of safety and efficacy of NHP options
What is the primary goal of including NHPs in the pharmaceutical care process?
To assess the safety and efficacy of NHPs
What is the primary role of the pharmacist in fostering open communication with patients?
To create a non-threatening environment for patients
What is the conclusion of the Cochrane review of 2014 regarding the use of Echinacea for preventing colds?
Echinacea has no significant effect on the prevention of cold episodes.
What is the relative risk reduction of cold episodes suggested by the post hoc pooling of results in the Cochrane Review (2014)?
10% to 20%
What is the theoretical caution for using Echinacea in certain cases?
Chronic immune dysfunction and autoimmune conditions
What is the recommended dosage form for Echinacea capsules?
500-1000mg three times daily
What is the daily dose of Echinacea tincture (1:5) equivalent to?
900mg dried Echinacea root
What is the recommended dosage form for Echinacea tea?
2 tsp (4g) of coarsely powdered herb
What is the potential interaction of Echinacea with immunosuppressant therapy?
Echinacea may theoretically interfere with immunosuppressant therapy
What is the common adverse reaction of Echinacea?
Allergic reactions
What is the effect of Echinacea on CYP enzymes?
Echinacea theoretically affects CYP enzymes, but it is likely not clinically significant
What is the tolerability of Echinacea?
Echinacea is well-tolerated with few adverse reactions
What is the primary mechanism of action of Echinacea on the immune system?
Targeting both nonspecific and specific immune function
Which of the following compounds has been shown to have anti-inflammatory properties in Echinacea?
Alkamides
What was the conclusion of the Cochrane review of 2014 regarding the use of Echinacea for treating colds?
Echinacea products have not been shown to provide benefits for treating colds
How many RCTs were included in the study on the efficacy of Echinacea for the common cold?
24 RCTs
What is the primary role of alkamides in Echinacea?
Anti-inflammatory properties
What is the effect of glycoproteins, polysaccharides, and caffeic acid derivatives on macrophages and NK cells?
Activation of macrophages and NK cells
What is the conclusion of the Cochrane review of 2014 regarding the use of Echinacea for preventing colds?
The evidence is unclear for the use of Echinacea for preventing colds
What is the mechanism of action of Echinacea on the immune system?
Targeting both nonspecific and specific immune function
How many treatment comparisons were included in the Cochrane review of 2014 for the treatment of colds with Echinacea?
15 treatment comparisons
What is the effect of Echinacea on cold episodes?
No effect on cold episodes
The amount of literature on NHPs is decreasing.
False
The primary role of the pharmacist is to prohibit the use of NHPs.
False
All patients should be discouraged from using NHPs.
False
Echinacea has been shown to have a significant impact on the prevention of colds.
False
The pharmacist's primary goal is to recommend NHPs to patients.
False
Pharmacists should only discuss NHPs with patients who initiate the conversation.
False
Echinacea is generally well-tolerated and has few adverse reactions.
True
The standards of evidence for NHPs are lower than for conventional treatments.
False
Pharmacists should only assess NHPs that have a significant amount of evidence supporting their use.
False
The primary objective of the pharmaceutical care process is to promote the use of NHPs.
False
Echinacea has been shown to provide significant benefits for preventing and treating colds.
False
Alkamides are found in the aerial parts of Echinacea purpurea.
False
Glycoproteins have anti-inflammatory properties.
False
Echinacea has been shown to have a significant effect on the duration of colds.
False
Echinacea products have been shown to provide benefits for treating colds in multiple trials.
False
Caffeic acid derivatives are found in the roots of Echinacea purpurea.
False
Echinacea has been shown to have a significant effect on the prevention of colds.
False
Polysacchardies have anti-inflammatory properties.
False
The primary mechanism of action of Echinacea on the immune system is clear.
False
Echinacea products have been shown to provide benefits for treating colds in a wide variety of preparations.
False
Echinacea has been shown to provide significant benefits for preventing colds.
False
Echinacea products have been reported to have significant changes in CYP enzymes, which is clinically significant.
False
Echinacea is generally well-tolerated with few adverse reactions.
True
Theoretical caution is recommended when using Echinacea in cases of chronic immune dysfunction and autoimmune conditions.
True
The post hoc pooling of results in the Cochrane Review (2014) suggests a relative risk reduction of 50% to 60% in cold episodes.
False
Echinacea may theoretically interfere with antibiotic therapy.
False
The recommended dosage form for Echinacea tea is 1 tsp of coarsely powdered herb simmered in 1 cup of boiling water for 5 minutes.
False
Echinacea tincture (1:5) should be taken in a daily dose of equivalent to 500mg dried Echinacea root.
False
The Cochrane Review (2014) found a statistically significant difference in the number of patients with at least one cold episode.
False
Echinacea has been shown to have significant benefits for treating colds.
False
Study Notes
Evidence-based Approach to NHPs
- The role of the pharmacist is to foster open communication and create a non-threatening environment where patients can disclose CAM/NHP use and ask questions.
- Pharmacists should include in their medication review: "What else are you doing/taking to take care of your health?"
Role of the Pharmacist
- Help patients make informed choices about NHPs by providing evidence-based NHP information.
- Standards of evidence for NHPs are the same as for conventional treatments, but few NHPs have enough evidence to be routinely recommended.
Echinacea (Echinacea purpurea; Echinacea angustifolia; Echinacea pallida)
- Pharmacology: Echinacea appears to target both nonspecific and specific immune function, with 4 groups of compounds contributing to immunomodulatory activity: alkamides, glycoproteins, polysaccharides, and caffeic acid derivatives.
- Alkamides have anti-inflammatory properties and are found in roots of E. angustifolia and the roots + aerial parts of E. purpurea, while glycoproteins, polysaccharides, and caffeic acid derivatives have been shown to activate macrophages and NK cells, and have anti-viral activity.
Efficacy for the Common Cold
- 24 RCTs including 33 comparisons of echinacea with a control group (n= 4631) have been conducted to study the treatment and/or prevention of the common cold.
- Cochrane review (2014): Echinacea products have not been shown to provide benefits for treating colds, although there is possible weak benefit from some Echinacea products.
Treatment of Colds
- Cochrane review (2014): Only one of the seven treatment trials reporting data on the duration of colds showed a significant effect of Echinacea over placebo.
Prevention of Colds
- Cochrane review (2014): None of the 12 prevention comparisons reporting the number of patients with at least one cold episode found a statistically significant difference.
- However, a post hoc pooling of results suggests a relative risk reduction of 10% to 20%.
Echinacea: Cautions
- Generally well-tolerated with few AEs reported, but theoretical caution is needed in cases of chronic immune dysfunction and autoimmune conditions.
- Adverse reactions: uncommon, but include allergic reactions which vary from mild to anaphylactic.
- Drug Interactions: theoretically may interfere with immunosuppressant therapy (e.g., cyclosporin, prednisone); reports of changes in CYP enzymes (likely not clinically significant).
Echinacea: Dose
- Depends on the dosage form and standardization, with a wide range of doses tested in studies, including:
- Capsules (of powdered herb): 500-1000mg three times daily, for five to seven days.
- Expressed juice: 6-9mL daily in divided doses, for five to seven days.
- Tincture (1:5): 0.75 to 1.5mL, gargled then swallowed, 2-5 times per day, for five to seven days.
- Tea: 2 tsp. (4g of Echinacea) of coarsely powdered herb simmered in 1 cup of boiling water for 10 minutes, daily for 5-7 days.
Evidence-based Approach to NHPs
- The role of the pharmacist is to foster open communication and create a non-threatening environment where patients can disclose CAM/NHP use and ask questions.
- Pharmacists should include in their medication review: "What else are you doing/taking to take care of your health?"
Role of the Pharmacist
- Help patients make informed choices about NHPs by providing evidence-based NHP information.
- Standards of evidence for NHPs are the same as for conventional treatments, but few NHPs have enough evidence to be routinely recommended.
Echinacea (Echinacea purpurea; Echinacea angustifolia; Echinacea pallida)
- Pharmacology: Echinacea appears to target both nonspecific and specific immune function, with 4 groups of compounds contributing to immunomodulatory activity: alkamides, glycoproteins, polysaccharides, and caffeic acid derivatives.
- Alkamides have anti-inflammatory properties and are found in roots of E. angustifolia and the roots + aerial parts of E. purpurea, while glycoproteins, polysaccharides, and caffeic acid derivatives have been shown to activate macrophages and NK cells, and have anti-viral activity.
Efficacy for the Common Cold
- 24 RCTs including 33 comparisons of echinacea with a control group (n= 4631) have been conducted to study the treatment and/or prevention of the common cold.
- Cochrane review (2014): Echinacea products have not been shown to provide benefits for treating colds, although there is possible weak benefit from some Echinacea products.
Treatment of Colds
- Cochrane review (2014): Only one of the seven treatment trials reporting data on the duration of colds showed a significant effect of Echinacea over placebo.
Prevention of Colds
- Cochrane review (2014): None of the 12 prevention comparisons reporting the number of patients with at least one cold episode found a statistically significant difference.
- However, a post hoc pooling of results suggests a relative risk reduction of 10% to 20%.
Echinacea: Cautions
- Generally well-tolerated with few AEs reported, but theoretical caution is needed in cases of chronic immune dysfunction and autoimmune conditions.
- Adverse reactions: uncommon, but include allergic reactions which vary from mild to anaphylactic.
- Drug Interactions: theoretically may interfere with immunosuppressant therapy (e.g., cyclosporin, prednisone); reports of changes in CYP enzymes (likely not clinically significant).
Echinacea: Dose
- Depends on the dosage form and standardization, with a wide range of doses tested in studies, including:
- Capsules (of powdered herb): 500-1000mg three times daily, for five to seven days.
- Expressed juice: 6-9mL daily in divided doses, for five to seven days.
- Tincture (1:5): 0.75 to 1.5mL, gargled then swallowed, 2-5 times per day, for five to seven days.
- Tea: 2 tsp. (4g of Echinacea) of coarsely powdered herb simmered in 1 cup of boiling water for 10 minutes, daily for 5-7 days.
Evidence-based Approach to NHPs
- The role of the pharmacist is to foster open communication and create a non-threatening environment where patients can disclose CAM/NHP use and ask questions.
- Pharmacists should include in their medication review: "What else are you doing/taking to take care of your health?"
Role of the Pharmacist
- Help patients make informed choices about NHPs by providing evidence-based NHP information.
- Standards of evidence for NHPs are the same as for conventional treatments, but few NHPs have enough evidence to be routinely recommended.
Echinacea (Echinacea purpurea; Echinacea angustifolia; Echinacea pallida)
- Pharmacology: Echinacea appears to target both nonspecific and specific immune function, with 4 groups of compounds contributing to immunomodulatory activity: alkamides, glycoproteins, polysaccharides, and caffeic acid derivatives.
- Alkamides have anti-inflammatory properties and are found in roots of E. angustifolia and the roots + aerial parts of E. purpurea, while glycoproteins, polysaccharides, and caffeic acid derivatives have been shown to activate macrophages and NK cells, and have anti-viral activity.
Efficacy for the Common Cold
- 24 RCTs including 33 comparisons of echinacea with a control group (n= 4631) have been conducted to study the treatment and/or prevention of the common cold.
- Cochrane review (2014): Echinacea products have not been shown to provide benefits for treating colds, although there is possible weak benefit from some Echinacea products.
Treatment of Colds
- Cochrane review (2014): Only one of the seven treatment trials reporting data on the duration of colds showed a significant effect of Echinacea over placebo.
Prevention of Colds
- Cochrane review (2014): None of the 12 prevention comparisons reporting the number of patients with at least one cold episode found a statistically significant difference.
- However, a post hoc pooling of results suggests a relative risk reduction of 10% to 20%.
Echinacea: Cautions
- Generally well-tolerated with few AEs reported, but theoretical caution is needed in cases of chronic immune dysfunction and autoimmune conditions.
- Adverse reactions: uncommon, but include allergic reactions which vary from mild to anaphylactic.
- Drug Interactions: theoretically may interfere with immunosuppressant therapy (e.g., cyclosporin, prednisone); reports of changes in CYP enzymes (likely not clinically significant).
Echinacea: Dose
- Depends on the dosage form and standardization, with a wide range of doses tested in studies, including:
- Capsules (of powdered herb): 500-1000mg three times daily, for five to seven days.
- Expressed juice: 6-9mL daily in divided doses, for five to seven days.
- Tincture (1:5): 0.75 to 1.5mL, gargled then swallowed, 2-5 times per day, for five to seven days.
- Tea: 2 tsp. (4g of Echinacea) of coarsely powdered herb simmered in 1 cup of boiling water for 10 minutes, daily for 5-7 days.
This quiz assesses understanding of evidence-based approaches to natural health products (NHPs) in pharmaceutical care, including identifying reliable information sources.
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