"Some doctors advise that people who have movement disorders
should be careful with using Guyabano. Since you have muscle spasms, I
would not recommend that you start drinking the tea without your
doctor's supervision.
When making a pot of tea for use as
an herbal supplement with cancer, add 15 dried Guyabano leaves to every
liter of hot water. Drink one cup three times a day.
http://www.ascopost.com/issues/november-25,-2015/graviola.aspx
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Guyabano Leaves Tea Caution Movement Disorders
Guyabano Leaves Health Benefits
Guyabano Leaves Treatment