Biotene Oral Rinses May Improve Dry Mouth at Night

Dry Mouth Occurs with Medications and CPAP and Solutions Include Biotene

A woman sticks out her tongue. Jonathan Knowles/Stone/Getty Images

Do you ever wake up with a really dry mouth? If the Sahara desert frequently shows up in your mouth overnight, you may be interested in learning about some of the reasons why you might experience the dryness. If it continues, you may start to wonder about treatment options, including the use of oral rinses like Biotene. Discover how Biotene products may improve dry mouth, no matter the cause.

What Causes Dry Mouth?

There are many potential causes of dry mouth at night. The most common explanation may seem obvious: mouth breathing. Humans are designed to breathe through their noses to reduce evaporation of moisture from the tissues lining the airway. If the nose is congested due to allergies or a cold, or if a deviated nasal septum is blocking one side, the default is to breathe through the mouth. This may contribute to snoring and sleep apnea at night and increase the likelihood of developing a dry mouth at night.

Dryness can also occur secondary to many prescription medications. Antihistamines, including those like Benadryl that are used as sleeping pills, can also contribute to a dry mouth. Blood pressure medicine, especially diuretics like Lasix (furosemide), frequently cause urination and reduce the body’s fluid reserves. It is shocking how many medications list dry mouth as a possible side effect, so check out the labels of your pills if you take any.

Other medical conditions can also contribute to symptoms of dry mouth and be labeled as xerostomia. These causes can include rheumatic disorders like Sjogrens and Sicca syndromes. People with diabetes may complain of a dry mouth. Treatments that affect the function of the salivary glands, including chemotherapy and radiation affecting the head and neck, can also play a role.

If you use a continuous positive airway pressure (CPAP) device, air escaping through the mouth at night may also frequently lead to dryness. 

Treatment Options for Dry Mouth Include Biotene

If you have a dry mouth, the first thing you are likely to do is reach for a glass of water. Though this may relieve some of your symptoms, it may not be enough. Saliva is an important lubricant within the mouth, and its constitution includes more than just water. It also contains important enzymes that lubricate the mouth, protect the gums and lining of the mouth, and reduce the risk of gingivitis, tooth decay, and tooth loss.

If dryness becomes a chronic problem, your doctor or dentist may recommend using a product that works as a saliva replacement. The most popular over-the-counter option is called Biotene and is manufactured by GlaxoSmithKline. Their products include toothpastes, oral rinses, gels, and mouth sprays. These are available through most drug stores and online and typically cost from $5 to $10.

Biotene products are meant to replicate and replace the enzymes naturally found in saliva. They do not contain alcohol, which can be drying. This also gives them a less intense and more pleasant taste compared to many mouthwashes.

The moisturizers are safe to use and do not cause significant side effects.

If you use Biotene oral rinses for dry mouth, read the instructions carefully and consult with your doctor or dentist to ensure nothing more serious is contributing to your symptoms. As needed, take one tablespoon by mouth and rinse for 30 seconds before spitting it out. It can be used up to 5 times daily. Biotene is not recommended for use by children under age 12.

For those with persistent dry mouth, Biotene can be a helpful option that may provide relief from a bothersome symptom.


Biotene. Last accessed: March 31, 2015.

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