<unk>  is the medical term for a dry mouth due to a lack of saliva.<unk>  is sometimes colloquially called pasties or cottonmouth.<unk>  can cause difficulty in speech and eating. It also leads to halitosis and a dramatic rise in the number of cavities, as the protective effect of saliva is no longer present, and can make the mucosa of the mouth more vulnerable to infection. Notably, a symptom of methamphetamine abuse usually called "meth mouth" is largely caused by<unk> .
Xerostomia
Nosophobia
Dysphagia
Neophobia
Gastroparesis
Constipation  
Constipation
Hyperesthesia