Betula nigra is a species of birch. It’s pollen is used in homeopathic anti-allergy pills.
Betula nigra pollen relieves individuals from allergy symptoms via stimulation of the body’s allergic reaction systems.
Stop and consult a doctor if allergy symptoms don’t improve in 5 days and/or if new symptoms appear, if you suffer from asthma and severe mold or other allergies, if you have heart disease or high blood pressure.
black birch, river birch, water birch