TraditionWARNING: DISCLAIMER: The below uses are based on tradition, scientific theories, or limited research. They often have not been thoroughly tested in humans, and safety and effectiveness have not always been proven. Some of these conditions are potentially serious, and should be evaluated by a qualified healthcare provider. There may be other proposed uses that are not listed below.
Antioxidant, astringent, cardiotonic, diarrhea, diabetic peripheral neuropathy (prevention), diabetic retinopathy, dysentery (severe diarrhea), enteritis (inflammation of the bowels), goiter (enlarged thyroid), hemorrhage, hypertension (high blood pressure), hyperthyroidism (overactive thyroid), tonic (gastrointestinal), ulcers (mouth).
Adults (18 years and older):
Based on the available scientific evidence, there is no proven safe or effective dose for myrcia. Traditionally, one cup of leaf infusion has been taken 2- 3 times daily with meals or 1- 2 grams of leaf powder in tablets or capsules has been taken with meals. Infusion of 3 grams of leaves per day for 56 days has been used in one human trial with no clinical benefit.
Children (younger than 18 years):
Based on the available scientific evidence, there is no proven safe or effective dose for myrcia in children and use is not recommended.
SafetyDISCLAIMER: Many complementary techniques are practiced by healthcare professionals with formal training, in accordance with the standards of national organizations. However, this is not universally the case, and adverse effects are possible. Due to limited research, in some cases only limited safety information is available.
Avoid in individuals with a known allergy or hypersensitivity to myrcia.
Side Effects and Warnings
There are no reports currently available describing the adverse effects of myrcia. Dizziness, drowsiness, flatulence (gas), abdominal discomfort, bloating, diarrhea, and nausea are possible adverse effects.
Myrcia has been used historically for hypertension (high blood pressure). Theoretically, it may cause hypotension (low blood pressure) in some patients. Use myrcia cautiously in patients taking blood pressure medications and in patients with low blood pressure.
Myrcia may lower blood sugar levels. Caution is advised in patients with diabetes or hypoglycemia, and in those taking drugs, herbs, or supplements that affect blood sugar. Serum glucose levels may need to be monitored by a qualified healthcare professional including a pharmacist, and medication adjustments may be necessary.
Patients may experience hypothyroidism with myrcia. Use myrcia cautiously in patients taking medications for hyperthyroidism. Based on its similar activity to some anti- thyroid medications, myrcia may cause agranulocytosis (an acute blood disorder), chills, fever, and loss of taste.
Pregnancy and Breastfeeding
Myrcia is not recommended in pregnant and breastfeeding women. Myrcia may affect blood sugar levels and thyroid function. Uncontrolled diabetes or thyroid dysfunction during pregnancy can lead to abnormal fetal development.