Sekrut, these are a couple or articles I found, they are pretty comprehensive - you may want to read them in their entirety - I includeed the links if you wish to do so.
“• If your dry mouth is caused by medicine, your physician might change your medicine or adjust the dosage.
• If your salivary glands are not working right but can still produce some saliva, your physician or dentist might give you a medicine that helps the glands work better.
• Your physician or dentist might suggest that you use artificial saliva to keep your mouth wet.
What else can I do?
• Sip water or sugarless drinks often. You should only take sips of water, drinking large amounts of liquid will not make your mouth any less dry. It will make you urinate more often and may strip your mouth of mucus, causing even more dryness.
• Avoid drinks with caffeine. Drinks such as coffee, tea, and some sodas that contain caffeine can dry out the mouth.
• Sip water or a sugarless drink during meals. This will make chewing and swallowing easier. It may also improve the taste of food.
• Chew sugarless gum or suck on sugarless hard candy to stimulate saliva flow. Flavors such as citrus, cinnamon or mint-flavored candies are good choices. Take note, they must be Sugar
free because dry mouth makes you extremely prone to cavities.
• Don't use tobacco or alcohol. They tend to dry out the mouth.
• Avoid certain foods. Be aware that spicy or salty foods may cause pain in a dry mouth.
• Use a humidifier at night.”
Full link: http://arthritis.about.com/od/sjogrens/ss/drymouth_3.htm
And here’is another very complete article with a lot of info and suggestions:
“Xylitol mints, candy and gum will often stimulate salivary flow, improve the breath, and will not cause tooth decay. (Google search). The availability of these candies can be of great benefit to persons who really need more moisture in their mouths at times when it is inconvenient or impossible to use the other products discussed here.”
Maybe mixing some Xylitol in water and sipping as recommended, will help you? And I’ve read quite often how good it is for your teeth – so bonus!
Good luck in your search,