Concentrated Elderberry Organic 5:1, 2 to 4 years old : 20 drops (1 ml) 5 to 9 years old : 30 drops (1.5 ml) 10 to 13 years old: 50 drops (2.5 ml) 14 to 17 years old: 80 drops (4 ml) Adults: 1 teaspoon (5 ml ),Medicinal Ingredient per 5 ml: 25 000mg Canadian Elderberry (Sambucus canadensis).