Inclusion Criteria- Seeking treatment for troublesome sialorrhea for at least 3 months that is occurring secondary to any disorder or related to any cause
- Investigator sites will review entire list of inclusion criteria with potential subjects
Exclusion Criteria- Any known prior exposure to botulinum toxin type B, or known adverse reaction or sensitivity to botulinum toxin type A, or known sensitivity to any of the MYOBLOC solution components.
- Prior botulinum toxin treatment to the salivary glands at any time
- Investigator sites will review entire list of exclusion criteria with potential subjects