Table of Contents
Hello, I’m Dr. Sang-Cheol Hwang, a researcher and treater of autonomic nerves. Have you been struggling with the burning sensation in your mouth? Among the many causes, today I would like to explain the relationship between ACE inhibitors and tongue pain in high blood pressure medications. Many people complain that their mouth is constantly dry and their tongue feels burning or hot after taking high blood pressure medications.
Why is there no abnormality on the burning mouth test?
Burning mouth is often caused by an overactive nerve rather than a structural condition, such as loose mucous membranes or inflammation MRI or blood tests may show normal, but in reality the pain nerves have a lowered threshold, causing small stimuli to be perceived as large This is especially common in people with autonomic imbalance.
Not all high blood pressure medications work the same
While hypertension medications have in common the ability to lower blood pressure, they work very differently. This difference is key to whether or not side effects like mouth burning occur.
The Key Link Between ACE Inhibitors and Mouth Burning
ACE inhibitors lower blood pressure by inhibiting angiotensin-converting enzyme, which reduces the production of the vasoconstrictor angiotensin 2. However, this enzyme is also responsible for breaking down a substance called bradykinin. When ACE inhibitors are used, bradykinin builds up in the body, which has the ability to dilate blood vessels, sensitize pain nerves, and amplify inflammatory signals. This can lead to unexplained pain, such as facial heat, dry cough, burning tongue, and stinging sensations.
Why are ARBs less common?
ARBs work by blocking the receptors that angiotensin 2 acts on The idea is to block the trigger button for angiotensin 2, so they don’t increase bradykinin concentrations Because of this, there are relatively fewer symptoms of nerve irritability or burning mouth that are seen with ACE inhibitors In fact, people often switch to ARBs when they change medications because of dry cough or tongue discomfort.
Effects of calcium channel blockers and diuretics
Calcium channel blockers are medications that relax blood vessels by blocking calcium from entering the muscles of the blood vessels They do not directly sensitize the nerves, but some people experience dry mouth and facial swelling sensory changes Diuretics reduce blood pressure by removing water from the body, which can lead to decreased salivation and dry mouth, but are less likely to be directly associated with nerve sensitization per se
So what makes some people more prone to symptoms?
A body that is normally sensitive to stress and has a heightened sympathetic nervous system Sleep deprivation Nutritional deficiencies, especially if you are deficient in B vitamins magnesium iron, can make you more susceptible to burning mouth symptoms An external stimulus, such as a medication, adds to an already sensitized neural circuit.
Why you shouldn’t quit medication on your own
It is extremely dangerous to discontinue your antihypertensive medication arbitrarily because you suspect a burning mouth sensation. You should consult with your doctor to consider changing your medication regimen. Drinking plenty of fluids, limiting irritating foods, getting enough sleep, and watching your nutrition can help reduce symptoms.
Burning Mouth Approach to TCM Treatment
In cases of functional pain without structural abnormalities, stabilizing the autonomic nerves is a key treatment point In Chinese medicine, acupuncture and herbal treatments are used to calm the overactive sympathetic nerves and create an environment for the oral mucosa and nerves to heal, especially the cervicothoracic autonomic axis, which is associated with the nerve flow responsible for tongue and oral sensation It is important to work with the cervical-thoracic autonomic axis when medication changes alone do not improve, and this integrative approach may be helpful
If your tongue is constantly burning and stinging, even though it’s normal on examination, it may be a functional signal from your body. Understanding the cause and taking a step-by-step approach to recovery, rather than pushing through the symptoms, will give you a much clearer path to recovery.
