Pro-Banthine is the brand name. The name of the medicine is propantheline. In hyperhidrosis, it can be taken up to 120mg daily i.e. 8 tablets of 15mg each. However one should take the minimal medication required to control symptoms.
By and large, it is relatively a safe medicine with few side effects which go away once the medicine is stopped. Alternative therapies are more complex, much more costly with many more side effects.