Table 7 Concentration of medicinal plants in homemade single species herbal remedy reports (HSHR) for topical use. Data from Italian speaking regions (ItR), German speaking cantons (GeC), and from earlier Swiss studies [22] are compared with recommended concentrations from literature
Plant species with ≥ 3 reported HSHR and documented dosage | g of dry plant equivalent in 100 g finished product | Recommended concentration g dry plant equivalent in 100 g finished product [39–42] | ||
|---|---|---|---|---|
Arithmetic mean (median; minimum value- maximum value; number of UR for which concentration has been estimated) | Determined concentration in previous Swiss study [22] | |||
ItR | GeC | |||
Arnica montana L. herba and flos | 1.37 (1.14; 1.00–2.50; 7) | - | 2.87 | 2.0 – 10−33 |
Calendula officinalis L. herba, flos, and flos sine calice | 2.68 (2.00; 0.48–5.56; 9) | 1.10 (0.83; 0.22–3.33; 6) | 1.10 | 0.67– 1.0 – 1.3 – 5.0 – 20 – 50 |
Hypericum perforatum L. herba and flos | 2.40 (2.50; 1.85–2.86; 3) | - | 1.58 | 5.0 – 10 – 11 |
Malva neglecta L. herba, herba cum radix, and flos | 0.31 (0.40; 0.13–0.43; 5) | - | 0.79 | - |
Matricaria recutita L. flos | 0.58 (0.50; 0.50–0.75; 3) | 1.00 (0.50; 0.15–3.52; 6) | 1.52 | 0.50 |