Coleus Forskolii

Wenyang Tongluo

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4. Wenyang Tongluo

Wenyang tongluo is an herbal combination used in Japan, and its main ingredient is roasted mahuang. One randomized study divided subjects into two groups — one group received the Japanese herb combination while the second group received prescription drugs salbutamol and beclomethasone.

Both groups experienced symptom improvement, but the group that received the herb mixture had even better FEV1 improvement. Since wenyang tongluo contains multiple herbs, it may also have multiple interactions with other herbs and drugs thus should be used under medical supervision.

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