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Chapter 75. Herbal and Nonherbal Dietary Supplements

Which product affects circadian rhythm and also functions as a hormone to aid in ovulation and sexual maturity?

a. Saw palmetto

b. St. John’s wort

c. Black cohosh

d. Melatonin

Answer d is correct. Due to this effect on the body, melatonin is commonly used for insomnia and is not recommended for use in adolescents.

Answer a is incorrect. Saw palmetto inhibits 5-α-reductase, dihydrotestosterone receptors, and has some anti-inflammatory activity.

Answer b is incorrect. St. John’s wort works in neural synapses to influence reuptake of neurotransmitters and also has some GABA antagonism.

Answer c is incorrect. Black cohosh affects the vasovagal system and may have some estrogenic effects.

Which product can be utilized for postmenopausal symptoms, primarily hot flushes?

a. Saw palmetto

b. Kava

c. Black cohosh

d. RYR

Answer c is correct. This is due to black cohosh’s effects on the vasovagal system.

Answer a is incorrect. Saw palmetto is primarily used for BPH.

Answer b is incorrect. Kava is primarily utilized for anxiety and insomnia.

Answer d is incorrect. RYR can be used for hyperlipidemia.

A 42-year-old woman visits your pharmacy with complaints of increased sensitivity to the sun after starting a new natural product. Which of the following is most likely to cause this side effect?

a. Garlic

b. Kava

c. Echinacea

d. Chondroitin

e. St. John’s wort

Answer e is correct. Increased photosensitivity is well-documented effect; patients should be educated to wear sunscreen.

Answers a, b, c, and d are incorrect. These products are not associated with sun sensitivity as a side effect.

Which of the following statement(s) is/are true about garlic? Select all that apply.

a. Garlic does NOT have GI side effects.

b. Medicinal doses of garlic are safe in pregnancy.

c. This product may be utilized for the treatment of acne.

d. It is safe to ...

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