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A member asked:

what causes dry mouth?

10 doctor answers39 doctors weighed in
Dr. James Beck
Dentistry 11 years experience
Various: There are a multitude of cause of dry mouth. In our modern society, i think the biggest cause is side-effects of prescription medication. If you take rx meds and are having dry mouth discuss with your doctor. Other causes are autoimmune disorders, disorders of the salivary glands or ducts, and other illnesses. Discuss with your doctor and dentist. Do not suck on hard candy as some doctors recommen.
Dr. Randolph Todd
Endodontics 44 years experience
Many Possibilities: Dry mouth or "xerostomia" is a condition caused by a variety of conditions. Some are systemic conditions and others may be induced by a medication or supplements. Because a dry mouth can lead to an increase in dental decay amongst other problems, it is best to determine the cause and correct it. I recommend you see your md or dds for a careful evaluation and treatment.
Dr. Kyle Shank
Dentistry 13 years experience
What DOESN'T?: There are all sorts of things that can cause dry mouth, especially medications. Dry mouth is the number one side effect experienced among all prescription medications. There are also blockages in salivary ducts called sialolith's or autoimmune diseases like sjogrens disease. One way or another, the salivary glands just aren't getting the juices flowing.
Dr. Heidi Nelson
Dentistry 43 years experience
Sometimes aging: Another possibility is age. Menopause can certainly contribute to a dry mouth. Regardless of the cause, make sure you're well hydrated.
Dr. Willis Hardesty
Dentistry 28 years experience
Medications: Many drugs have dry mouth as a direct side effect. Issues with salivary glands can cause dry mouth but are much more rare the medication induced dry mouth. Sjogren's syndrome can also be another rare culprit.
Dr. Michio Abe
Internal Medicine 26 years experience
Dry mouth: Common causes in my practice include anticholinergic side effects of medication, such as antidepressant or antihistamine meds, mouth breathing due to sinus or nasal problems, dehydration from vomiting, diarrhea, and uncontrolled diabetes. It can be caused by autoimmune diseases such as sjogren's syndrome.
Dr. David Mann
ENT and Head and Neck Surgery 30 years experience
Dry mouth: Dry mouth has a lot of causes. Common causes are medications, especially diuretics. Other causes can be lack of adequate water intake, stress or rarely autoimmune disease (i.e., sjogrens syndrome).
Dr. Sandra Eleczko
Dentistry 36 years experience
Medications: Many medications can cause a dry mouth. So check with your doctor or pharmacist if you are taking any meds. Allergies, mouth breathing, dehydration, the dry winter air can be causes also. Dry mouth can cause tooth decay so if your mouth is dry talk to your dentist about ways to protect your teeth.
Dr. Bac Nguyen
Family Medicine 23 years experience
Reduced saliva: Many causes: dehydration, many medications, mouth breathing, and medical conditions such as sjogren's syndrome. I would say that medications are probably the most common culprits... Keep yourself hydrated, artificial saliva may help (otc). If you take medications (antihistamines, antidepressants are very common), consult your doc... Good luck.
Dr. David Kam
Dr. David Kam answered
ENT and Head and Neck Surgery 36 years experience
Many causes: It can be from excessive intake of caffeine or alcohol, not drinking enough water or related to the side effect some medications for treatment of blood pressure or mental health. Aging, post radiation treatment and some diseases like sjorgren's syndrome can also lead to dry mouth.

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Similar questions

A 34-year-old member asked:

What causes a constantly dry mouth?

3 doctor answers8 doctors weighed in
Dr. Kayvon Javid
Dentistry 20 years experience
Hydration : Most medications cause a reduction in saliva production. Diet and the amount of liquid intake also has a direct effect in saliva production.
A 32-year-old member asked:

Can a dry mouth cause cavities?

4 doctor answers15 doctors weighed in
Dr. Brijesh Chandwani
Pain Management 11 years experience
Yes: One of the functions of saliva is constant flushing of the teeth and oral tissues to remove any food debris. This prevents bacterial buildup which is responsible for dental decay. Additionally, salivary enzymes also have anti-bacterial properties which also prevents decay.
A 35-year-old member asked:

What medicines cause dry mouth?

3 doctor answers6 doctors weighed in
Dr. Brijesh Chandwani
Pain Management 11 years experience
Several medications: Several medications cause dry mouth including anti-depressants, anti-epileptics, muscle relaxants, anti-psychotics and anti-histaminics (benadryl, claritin). Additionally, smoking/tobacco and anti-cancer drugs can also cause dry mouth.
A 36-year-old member asked:

Does cola syrup cause dry mouth?

2 doctor answers4 doctors weighed in
Dr. Sandra Eleczko
Dentistry 36 years experience
Sugar: Cola syrup is concentrated sugar with some flavorings. What are you using this for in such high amounts that it can effect your mouth? The heavy sugar can cause tooth decay but is not a cause of dry mouth. Most of the times dry mouth is caused by medications that you are taking. If your mouth is dry then this heavy sugar is very bad for your teeth.. See dentist about this, the dryness and teeth.
A 49-year-old member asked:

Which drugs cause dry mouth?

3 doctor answers11 doctors weighed in
Dr. Ronald Krauser
Rheumatology 52 years experience
See details: There are too many to list. It would have been better is you listed the meds you are taking and then someone could tell you if one is a possible cause.

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