Protecting Brain Health: 7 Anticholinergic Medications Older Adults Should Use with Care
Want to safeguard your brain—or that of someone you love? Understanding how commonly used medications may impact cognitive function is a critical step.
This guide will explore a category of medications every older adult and caregiver should know about: anticholinergic drugs.
What Are Anticholinergic Medications?
Anticholinergics block acetylcholine, a neurotransmitter essential for brain and body functions. This can lead to slowed brain activity, often experienced as drowsiness or sedation. While this might seem harmless—especially if sedation is desired—these effects can be problematic for aging or vulnerable brains.
In fact, anticholinergic drugs work in opposition to medications like donepezil or rivastigmine, which are designed to boost acetylcholine levels and are commonly prescribed for Alzheimer’s disease.
Research has shown links between anticholinergic medications and an increased risk of Alzheimer’s, hospitalizations, and other complications in older adults. The American Geriatrics Society has even flagged these drugs as risky, adding them to the Beers Criteria—a list of medications older adults should avoid or use cautiously.
Beyond the brain, anticholinergic drugs can cause side effects such as dry mouth, blurry vision, constipation, and urinary retention by disrupting acetylcholine’s functions throughout the body.
7 Common Types of Anticholinergic Medications to Watch For
These medications are often found in everyday treatments for allergies, pain, and more. While they can be useful, they should be used with caution, especially by older adults.
1. Sedating Antihistamines
- Example: Diphenhydramine (Benadryl)
- Found in many over-the-counter (OTC) allergy and cold medications.
- Safer alternative: Non-sedating antihistamines like loratadine (Claritin).
2. PM Versions of OTC Pain Relievers
- Includes medications like Tylenol PM or Advil PM that combine pain relievers with sedatives like diphenhydramine.
- Nighttime cold and flu medications, such as NyQuil, often contain anticholinergic components.
3. Overactive Bladder Medications
- Examples: Oxybutynin (Ditropan), Tolterodine (Detrol).
- These can alleviate bladder issues but may harm brain health.
4. Motion Sickness or Dizziness Treatments
- Example: Meclizine (Antivert).
- Commonly prescribed for vertigo or nausea but carries cognitive risks.
5. Medications for Itching
- Examples: Hydroxyzine (Vistaril), Diphenhydramine (Benadryl).
- Often used to treat hives or severe itching.
6. Tricyclic Antidepressants
- Examples: Amitriptyline, Nortriptyline.
- Although not widely used for depression anymore, they are still prescribed for nerve pain and migraines.
7. Muscle Relaxants
- Example: Cyclobenzaprine (Flexeril).
- Often prescribed for neck or back pain but can impact cognition.
Special Note:
The antidepressant paroxetine (Paxil), an SSRI, is particularly anticholinergic and is typically avoided in older adults. Other SSRIs like sertraline (Zoloft) or escitalopram (Lexapro) are safer options.
Why These Drugs Matter for Brain Health
Studies suggest cumulative exposure to anticholinergic medications over time may increase the risk of developing dementia. Additionally, their side effects—such as confusion, drowsiness, or dizziness—can lead to falls and hospitalizations, particularly in older adults.
What Should You Do?
If you or a loved one takes anticholinergic medication, don’t panic. Instead, take the following steps:
- Review Your Medications
- Ask your doctor or pharmacist to identify which medications have anticholinergic effects.
- Use tools like the Anticholinergic Burden Scale calculator to evaluate the risk.
- Discuss Alternatives with Your Doctor
- Could the dosage be reduced?
- Are there safer medications or non-drug therapies available?
- Focus on Non-Drug Treatments
- Many conditions treated with anticholinergic drugs—such as insomnia or overactive bladder—can often be managed with behavioral therapies or lifestyle adjustments.
- Stay Informed
- Familiarize yourself with the medications listed in the Beers Criteria or consult resources like this list of anticholinergic drugs.
- Keep Track of Symptoms
- Pay attention to changes in cognition, memory, or daily functioning when starting or continuing anticholinergic medications.
Questions to Ask Your Doctor
- “Can any of these medications impact memory or brain health?”
- “Are there safer alternatives for managing this condition?”
- “Would it be possible to taper or reduce the dose of this medication?”
- “What non-drug treatments might work instead?”
Final Thoughts
While anticholinergic medications can provide relief for certain conditions, they come with risks, particularly for older adults. By staying informed and working closely with healthcare providers, you can make thoughtful decisions to prioritize both health and brain function.
Careful management now can make a significant difference in maintaining cognitive health for years to come.
