Blessed Thistle
        Contraindications: Allergy towards blessed thistle
        Side effects: Allergic reactions are possible
Interactions with other remedies: None known

Fenugreek
        Contraindications: None known
        Side effects: Repeated external use may bring about undesirable skin
reactions
        Interactions with other remedies: None known

The above are the "negative" effects from the German Commission E monographs.
They really don't say a lot.

Frank J. Nice, DPA, CPHP