Synopsis

Source of validity: Traditional
Rating (out of 5): 2

Geranium (Pelargonium spp.), particularly Pelargonium sidoides, has a long history of traditional use in various cultures for treating infections and supporting immune health. In traditional South African medicine, Pelargonium sidoides root extracts have been employed to address respiratory tract infections, diarrhea, and wounds, often as an alternative to conventional antibiotics when those were unavailable. The most notable use is in the proprietary extract known as Umckaloabo, which is widely marketed in Europe for acute bronchitis and other respiratory infections.

Scientific studies on Pelargonium sidoides suggest that it possesses some antimicrobial and immune-modulating properties. In vitro research has shown activity against certain bacteria and viruses, but these effects are generally mild compared to standard antibiotics. Clinical trials, mainly involving respiratory tract infections, indicate that Pelargonium extracts may reduce the duration and severity of symptoms, but the evidence is not robust enough to recommend it as an alternative to antibiotics for serious bacterial infections. The mechanism appears to be more supportive—enhancing immune response and symptom relief—rather than directly bactericidal.

Overall, while there is a strong tradition of using geranium species as alternatives or adjuncts to antibiotics, scientific validation is limited, and the evidence base is moderate at best. Geranium is not a direct substitute for antibiotics in the treatment of serious bacterial infections, but may offer some supportive benefits for mild infections or symptom management.

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