According to the World Health Organization (WHO), unwanted effects are classified according to their frequency of development as follows: very often (≥1/10), often (from ≥1 / 100 to <1/10),infrequently (from ≥1 / 1000 to <1/100), rarely (from ≥1 / 10000 to <1/1000), very rarely (<1/10000); frequency is unknown - according to available data, it was not possible to establish the frequency of occurrence.
Violations of the blood and lymphatic system
frequency unknown: leukopenia (with continuous use for more than 8 weeks).
Immune system disorders
frequency unknown: hypersensitivity reactions (skin rash, itching), angioedema, Quincke's edema, Stevens-Johnson syndrome, anaphylactic shock. Echinacea can provoke allergic reactions in patients with atopy.
It was also reported on the relationship between the occurrence of undesirable phenomena with autoimmune diseases (diffuse encephalitis, erythema nodosum, immunotrembocytopenia, Evans syndrome, Sjogren's syndrome with renal tubular dysfunction). Disorders from the cardiovascular system frequency is unknown: dizziness, lower blood pressure.
Disturbances from the respiratory system and chest organs
the frequency is unknown: bronchospasm with obstruction and asthma attacks as manifestations of hypersensitivity reactions.
In case of side effects, stop taking the medication and consult a doctor.