Botanical Overview
Commonly known as Guava, this species belongs to the Myrtaceae family. This species holds a prominent place in the global materia medica, with an extensive record of traditional use spanning diverse cultures and medical systems. The myrtle family (Myrtaceae) includes trees and shrubs with opposite leaves that contain aromatic oil glands. The flowers are showy with numerous stamens, and the fruits are often fleshy berries or capsules. Many species produce essential oils with antiseptic and antimicrobial properties.
General Description
It is pollinated by insects. When cultivated, it is pollinated mainly by the common honey bee, Apis mellifera.
Family Context
The Myrtaceae family is primarily tropical and subtropical. Notable medicinal members include:
- Melaleuca leucadendron — 49 documented uses
- Clove — 45 documented uses
- Blue Gum — 44 documented uses
- Myrtle — 30 documented uses
Geographic Distribution
Guava has been recorded in 10 countries and territories worldwide, including Benin, Brazil, Colombia, Ecuador, India, and others.
Traditional Uses
Guava has been traditionally used for digestive health, respiratory conditions, and skin and wound care, among other applications.
Digestive health.
- Diarrhea
- Dysentery
- Ache(Stomach)
- Laxative
- Vermifuge
For digestive complaints, the herb is typically prepared as a tea or decoction taken before meals. The bitter compounds stimulate digestive secretions and improve nutrient absorption. Some traditions use the powdered root or leaves in small doses as a stomachic tonic.
Respiratory conditions.
- Catarrh
- Cough
- Bronchitis
- Cold
Respiratory conditions are addressed through steam inhalation of the herb’s vapors or internal use as a warm tea. The hot infusion acts as an expectorant, helping to loosen phlegm and clear congestion. Some traditions combine it with honey for coughs.
Skin and wound care.
- Sore
- Wound
- Itch
- Scabies
For skin conditions, the fresh or dried plant is applied topically as a poultice, wash, or compress. A strong decoction can be used to clean wounds and sores. The antimicrobial properties help prevent infection while promoting tissue repair.
Active Compounds
Phytochemical research has identified 30 compounds in this species, including a diverse array of phytochemical classes (see the Complete Chemical Inventory below for the full list).
The identified compounds include the following categories:
- Phenolic: antioxidant compounds that neutralize free radicals
- Alkaloid: nitrogenous compounds with diverse pharmacological activities
- Tannin: astringent compounds that tighten tissues and resist infection