other anticholinergic meds would include benadryl (an antihistamine, but with anticholinergic side effects) or
scopolamine. In that light I might try
scopolamine- skin patches are sold over the counter and are placed on the skin behind the ear-- place your right over the.... that was going to be a joke, sorry-- they don't have to be on any particular area of skin, even though many people think they go behind the ear to affect motion centers there..