Along with most of the southern Gulf Islands, plus various minor islands offshore from its southern end, the southern part of Vancouver Island is the only part of British Columbia (and of Western Canada) that lies south of the 49th Parallel.hile the city of Vancouver stands on the North American mainland, Victoria, the capital city of British Columbia, is located on the island. The island was first explored by Europeans when British and Spanish expeditions arrived in the late 18th century.
There are many causes of dry mouth. Dry mouth most commonly occurs as a side effect of medications that cause decreased saliva production, including high blood pressure medications, antihistamines, antidepressants, diuretics, nonsteroidal anti-inflammatories, narcotics, and many others.
In addition, antidepressants may also cause xerostomia, such as selective serotonin reuptake inhibitors -- SSRIs -- as well as tricyclic antidepressants and the atypical antidepressant bupropion. Lithium used to treat bipolar disorder may also cause dry mouth. Turner and Ship note that sometimes a type of medication is needed and a drug causing a less severe side effect may be chosen.