The herbal remedies that can give you high blood pressure: St John's Wort, arnica, ginseng and liquorice can all cause problems, say experts 

Nikki Chapman, 51, from Ditchling, wasn't too concerned when a routine check-up showed her blood pressure was much higher than usual. A tea blend was the source of her problem.
Source: the Mail online | Health - Category: Consumer Health News Source Type: news