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80 Cards in this Set
- Front
- Back
What regulated drugs prior to the 20th century?
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State and local governments
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What is the Food and Drug Act of 1906?
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Prohibited marketing of food and drugs that were adulterated. Didn't have anything to do with safety.
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What did the Federal Food, Drug, Cosmetic Act of 1938 ensure?
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Safety
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What is the Durham-Humphrey Amendment of 1951?
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Required prescription for certain drugs. Prior to that all were OTC.
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What is the Food Additive Amendment of 1958 and Color Additive Amendment of 1960?
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No pesticides, no known carcinogens
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What did the Kefauver-Harris Amendment of 1962 regulate?
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Effectiveness, not just safety.
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What is the Dietary Supplement Health and Education Act (DSHEA) of 1994?
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Act by which the FDA can prove a drug (vitamins, herbs, supps) is unsafe if its safety is in question. But does not ensure safety before marketing.
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What has to be done to change a prescription drug to OTC?
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New drug application has to be filed. Classifications based on safety profile, degree of benefit vs risk and pt difficulty in use
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What are a few problems with the lack of regulation of herbs and supplements?
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Not required to show bioequivalence, large variances between brands and lots, "standardized" means a spec concentration of a specific component, not the process or other components
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What must and structure/function claims on herbs/supplements say?
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"This statement has not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease"
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What is an herb?
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Any part of a plant used for its medicinal, flavoring, or fragrant property.
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Do Rx drugs contain herbs?
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25% of "modern" rx drugs have botanical origins. Ex. Digoxin comes from foxglove and morphine comes from opium
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What is the difference between herbs used in Western medicine vs Chinese?
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Western herbalists use "simples" which is just one herb. Chinese use many blended together.
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What are teas, infusions, dococtions?
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Made by steeping and soaking herb in water for a few min
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What are tinctures?
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Herb is soaked in alcohol, glycerine or alcohol-water combination
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What are extracts?
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A filtered or distilled tincture
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What are tablets and capsules?
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Drying the herb, powdering it, shaping it into pills
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What are topicals?
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Herb added to emollient
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What is the rule of thumb in terms of botanical safety?
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Avoid using herbs in infants, children, pregnant women, nursing mothers, pts w/ daisy allergies and pts on mltpl meds
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What do people use ginseng for?
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Stress reliever, aphrodisiac, athletic enhancer, energizer, appetite stimulant, immunostimulant
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Of the things that people use Ginseng for, what are the possible things it is in fact effective for?
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Improved cognitive function, type 2 DM, and bronchitis
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Of the things that people use Ginseng for, what is it ineffective for?
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Enhancing athletic performance
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What populations should not use Ginseng?
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Unsafe in newborns. Also unsafe to use > 3 mos because it might alter estrogen levels
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What are precautions and interactions of Ginseng?
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May increase BP, overuse can cause HA, insomnia, palpitations, Decreases effect of loop diuretics, Increase bleeding risk if on blood thinners, May induce mania when used w/ antidepressants, May potentiate stimulants (i.e. caffeine)
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What is Ginkgo biloba used for?
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Vasodilator. Used to increase periph blood flow and improve intermittent claudication (limp), Used to treat dementia, vertigo and SSRI-induced sexual dysfunction.
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Of the things Ginkgo biloba is used for, what might it actually be effective for?
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Treating dementia, improving cognition in norm adults, improving pain free walking distances
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Of the things Ginkgo biloba is used for what is it ineffective for?
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Memory enhancement, ADHD, depression
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What is the major concern with Gingko biloba?
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It antagonizes platelet aggregation. Can result in bleeds. Don't take with blood thinners! Can also cause GI disturbance and CNS symptoms (ex dizziness)
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What is garlic used for?
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Improve lipid profiles, antibacterial properties, antithrombotic, hypotensive, anti-inflammatory, anti-cancer activity
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What is the active ingredient in garlic?
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Allicin
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What is the appropriate dosage of garlic?
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200-400mg tid. Probably safe in usual dose for up to 4 years.
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What is garlic actually possibly effective for?
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4-12% decrease in cholesterol levels and BP
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What are some precautions for taking garlic?
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May increase the effects of anticoags, inhibit plt aggregation, may inhibit thyroid preparations, may reduce blood glucose.
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In general, what 3 herbs/supps should be avoided for patients on blood thinners?
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Supps that start with G! Ginseng, Gingko biloba, Garlic
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What is Echinacea used for?
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Prophylaxis and treatment of cold and flu symptoms - stimulates phagocytes, immune system stimulation
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How long is Echinacea safe for?
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Likely safe when used short term. Up to 12 weeks.
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What is Echinacea actually possibly effective for?
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Decreasing symptoms of cold and flu
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What is Echinacea likely ineffective for?
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Preventing URIs if taken year round. If taken every day, immune system already stimulated...won't be any more stimulated when coming down with the flu.
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What is the appropriate dose of Echinacea?
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250-500 mg/day
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What is St. John's Wort (Hypericum) used for?
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Depression, anxiety, antiviral agent.
# 1 antidepressant in Germany |
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How does St. John's Wort (Hypericum) work?
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Major action is the inhibition of serotonin, norepi and dopamine reuptake and down regulation of receptors
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What is the dosage for St John's Wort?
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daily 900 mg standardized to 0.3% hypericin.
Doses up to 1800 mg tolerated in sever depression |
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What is St John's Wort possibly ineffective for?
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Antiviral agents - interfere w/ HIV agents and other immunosuppressants
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What are 4 contraindications for St Johns Wort?
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Sever depression, suicidal tendencies, severe agitation, hypersensitivity, pregnancy
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What is one major precaution for using St Johns Wort?
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Can cause severe photosensitivity
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What are possible drug interactions associated w/ st johns wort?
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MAO hibitors - hypersensitivity crisis, SSRIs - serotonin syndrome, transplant drugs
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What is Saw Palmetto used for?
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Male genitourinary problems (BPH), prostate cancer
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What is Saw Palmetto actually effective for?
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BPH symptoms, possibly effective for adjunctive therapy for prostate cancer.
Likely safe up to 1 year. Can decrease the size of the prostate. |
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What are precautions and interactions of Saw Palmetto?
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Due to anti-testosterone action, do not use in pregnancy or children, can cause stomach upset.
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What is the usual dosing for Saw Palmetto?
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Lipophilic extract 320 mg daily or whole berries 1-2 gm daily
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What are cranberries used for?
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Treatment and prophylaxis of UTI
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How does cranberry work?
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Acidifies urine, decreases bacterial adhesion to bladder wall
Likely effective as preventative agent |
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What is the usual dosage of cranberry?
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360-960 ml daily
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What is an adverse effect of overuse of cranberry?
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Diarrhea
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What is Valerian used for?
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Valeriana officinalis root extract used to promote sleep
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How does Valerian work?
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Increases levels of GABA (neurotransmitter) in the CNS
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What is the usual dosage of Valerian?
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400-900 mg extract 2 hour prior to bed
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What are some adverse effects of Valerian?
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May potentiate CNS depressants (alcohol, alprazolam). Unsafe for long term use.
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What was Ma Huang or Ephedra used for?
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Bronchial asthma, weight loss, athletic performance enhancer.
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What are some safety issues with Ma Huang or Ephedra?
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Likely save < 5 days (<24 mg/day), but likely unsafe longer. Associated w/ MI, stroke, seizures and death.
FDA has withdrawn from the market. |
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What was the appropriate dosage for Ma Huang or Ephedra?
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15-20 mg taken up to QID
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Why did Ephedra causes problems that made it so unsafe?
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Syngergistic effect w/ caffeine, decongestants, stimulants.
Pro arrhythmic effects w/ anesthesia and digoxin. MAO inhibitors potentiate stimulation effects. Can increase agitation assoc w/ SSRIs Overdose can be fatal |
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What are some of the Ephedra substitutes? (just as bad as Ephedra)
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Weight loss products (Hydroxycut, TrimSpa), Guarana - contains caffeine and theophylline like compound - highly arrhythmagenic, green tea extract - contains caffeine and diuretic, Citrus aurantium
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What is Kava Kava used for?
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Anxiety, stress and agitation, insomnia
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How does Kava Kava work?
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Has central muscle relaxing, anticonvulsive, hypnotic/sedative effects by interaction w/ ion channels and GABA sites
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What is a possible long term effect of Kava Kava?
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Liver failure, some reports of coma
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What are two Kava Kava interactions?
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Syngergistic w/ alcohol. Increases toxicity.
Potentiates CNS depressants |
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What is Glucosamine used for?
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Osteoarthritis
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What is the usual dosage for Glucosamine?
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1500 mg/day
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What is glucosamine likely effective for?
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osteoarthritis symptoms after 4 weeks, comparable to NSAIDs, may prevent further deterioration.
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What is glucosamine commonly combined with?
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Chondritin products
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What is Coenzyme Q10?
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A naturally occurring, intrinsic, vitamin-like compound found in the nucleus and mitochondria of cells. It is a cofactor in many reactions as an antioxidant.
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What is Coenzyme Q10 used for?
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CHF, myopathy (statin induced), mitochondrial disease
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What is Coenzyme Q10 actually possibly effective for?
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Mitochondrial encephalomyopathies, possibly effective for CHF especially in combo w/ usual therapy
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What is the usual dosage for Coenzyme Q10?
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100-200 mg/day
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What does Omega 3 Fatty Acids come from?
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Fish oils (EPA) and (DHA)
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What is Omega 3 Fatty Acids used for?
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Hyperlipidemia, CAD, arthritis, weight loss
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What is the usual dosage of Omega 3 fatty acids?
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1-4 g/day
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What are possible drug interactions w/ omega 3 fatty acids?
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Blood thinners - increases bleeding risk
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What is the HERBAL mnemonic?
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H.ear the patient out w/ respect.
E.ducate the patient. R.ecord and document. B.eware. A.gree to discuss. L.earn about new and popular supplements. |