Essential oil monoterpenes' therapeutic uses

  • DEFINITION: Natural plant product used to treat specific health conditions.
  • PRINCIPAL PROPOSED USES: Acute bronchitis, chronic bronchitis, sinus infections
  • OTHER PROPOSED USES: Antioxidant, cardiovascular benefits, colds, influenza

Overview

Eucalyptus oil is a standard ingredient in cough drops and cough syrups and an oil added to humidifiers. A standardized combination of eucalyptus oil and two other essential oils has been studied for effectiveness in a variety of respiratory conditions. This combination therapy contains cineole from eucalyptus, d-limonene from citrus fruit, and alpha-pinene from pine. Because these oils are all in a chemical family called monoterpenes, the treatment is called essential oil monoterpenes.

Therapeutic Dosages

In studies, this essential oil combination was taken at a dose of 300 milligrams three to four times daily.

Therapeutic Uses

Most, though not all, studies indicate that oral use of essential oil monoterpenes can help acute bronchitis, chronic bronchitis, and sinus infections. For example, a double-blind, placebo-controlled trial of 676 people with acute bronchitis found that two weeks of treatment with essential oil monoterpenes was more effective than a placebo and just as effective as antibiotic treatment for reducing symptoms and aiding recovery. In addition, a three-month, double-blind, placebo-controlled trial of 246 people with chronic bronchitis found that regular use of the essential oil monoterpenes helped prevent the typical worsening of chronic bronchitis that occurs during the winter. Additionally, in a double-blind, placebo-controlled study of about three hundred people, the use of essential oil monoterpenes improved symptoms of acute sinusitis. One study weakly indicated that essential oil monoterpenes may be helpful for colds in children. Essential oil monoterpenes are thought to work by thinning mucus. Essential oil monoterpenes are also thought to have additional antioxidant and anti-inflammatory properties and have been shown as an important regulator of autophagy. Emerging studies suggest essential oil monoterpenes may provide cardiovascular benefits.

Safety Issues

Other than minor gastrointestinal complaints, no side effects have been reported with this essential oil combination. However, be advised that essential oils can be toxic if taken in excess. Essential oils are generally not recommended to be consumed orally. Maximum safe doses in young children, women who are pregnant or nursing, and individuals with severe liver or kidney disease have not been established.

Bibliography

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Matthys, H., et al. "Efficacy and Tolerability of Myrtol Standardized in Acute Bronchitis: A Multi-Centre, Randomised, Double-Blind, Placebo-Controlled Parallel Group Clinical Trial vs. Cefuroxime and Ambroxol." Arzneimittel-Forschung, vol. 50, 2000, pp. 700-711.

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Santos, Márcio R. V., et al. "Cardiovascular Effects of Monoterpenes: A Review." Revista Brasileira de Farmacognosia, vol. 21, no. 4, Aug. 2011, pp. 764-771, doi:10.1590/S0102-695X2011005000119. Accessed 21 Nov. 2024.

Wojtunik-Kulesza, Karolina A. “Toxicity of Selected Monoterpenes and Essential Oils Rich in These Compounds.” Molecules, vol. 27, no. 5, pp. 1716. 6 Mar. 2022, doi:10.3390/molecules27051716. Accessed 21 Nov. 2024.