"Hyaluronan" Formulation for Dry Mouth in Sleep Apnea Patients

1. Patient should be above 18 years of age.
2. Patients who have been initiated on CPAP therapy after an initial diagnosis of OSAS and have developed dry mouth or have worsening of pre-existing dry mouth condition, as an effect of CPAP therapy.
3. Ability to attend visits at the research site
4. Patient should be able to read and/or understand and sign the consent form and be willing to participate in the research study
5. Have a negative history of radiation therapy to head and neck
6. Agree to abstain from the use of any products for xerostomia other than those provided in the study.
7. Agree to comply with the conditions and schedule of the study.

Exclusion Criteria:

1. Subjects with open mouth sores at study entry.
2. Any pathology that, based on the judgement of the researcher, could negatively affect the oral mucosa and subsequent treatment for xerostomia (immune disorders, etc.)
3. Subjects who are nursing, becoming pregnant or plan to become pregnant during the study period
4. Subjects currently on medication or treatment for dry mouth/xerostomia
5. Subjects \< 18 years of age
6. Hypersensitivity to any of the following ingredients- HA ,xylitol and Sodium Benzoate.
7. Subjects with soft or hard tissue tumor of the oral cavity.
8. Presence of severe gingivitis
9. Chronic disease with concomitant oral manifestations other than xerostomia
10. Subjects with conditions the investigator may feel will interfere with the condition under study.