Why First-Generation Allergy Medicines Can Be Dangerous for Older People
People of all ages can have allergies. Itchy eyes, sneezing, a runny nose, and skin rashes can all make life hard. A lot of people use allergy medicines to feel better. But not all allergy medicines work the same way, especially for older people.
Researchers and doctors say that some older allergy medications, known as “first-generation antihistamines,” can have strong side effects on older people. Some of these side effects are very sleepy, confused, dizzy, and even having trouble remembering things. Doctors often suggest “second-generation antihistamines” instead because they are safer and cause fewer problems.
Older adults and their caregivers can make safer choices if they know the difference between these drugs.
Why First-Generation Allergy Medicines Can Be Bad for Older People
First-generation antihistamines are older allergy drugs that have been around for a long time. They stop histamine, a chemical in the body that makes allergy symptoms worse. They can help with sneezing and itching, but they also have an .
These drugs often make people very sleepy and sedated because they get into the brain so easily. This effect can be much stronger in older people. A lot of older people who take these drugs feel very sleepy, slow, or mentally foggy.
Diphenhydramine and chlorpheniramine are two common examples of these drugs. You can also find them in some sleep aids and cold medicines. Younger adults may be able to handle them better, but older people often have bad side effects.
One big worry is delirium or confusion. An older person who is taking these drugs may suddenly seem confused, forgetful, or unable to focus. Sometimes, family members may think the person has dementia when the medicine is to blame.
These drugs can also make you more likely to fall and get hurt. People who are tired or dizzy may have a harder time keeping their balance. Falls are already a big health risk for older people, and drugs that make them sleepy can make that risk worse.
First-generation antihistamines can also make you have a dry mouth, constipation, and trouble urinating. These side effects can get worse for older people who already have health problems.
Because of these risks, many health groups tell older people not to take these drugs unless a doctor tells them to.
Why Second-Generation Allergy Medicines Are Safer
Second-generation antihistamines are newer allergy drugs that work to control allergy symptoms while causing fewer side effects. These drugs stop histamine from working, but they don’t easily get into the brain, so they don’t make you as sleepy.
Loratadine, cetirizine, and fexofenadine are all common examples. People use these medicines a lot these days because they don’t make you sleepy or just make you a little sleepy.
This difference is very important for older people. These drugs don’t have a big effect on the brain, so they are much less likely to cause confusion, memory problems, or too much sleepiness.
Another good thing about second-generation antihistamines is that they usually work longer. A lot of them only need one dose to work for 24 hours, which makes them easier to use and lowers the risk of taking too much medicine.
These drugs are often better for older people because they let them control their allergy symptoms while still being awake and active. This lowers the chance of falls, accidents, and confusion caused by medications.
Older adults should still talk to their doctor before taking any allergy medicine, though. Some medications may not work well with other drugs that are used to treat diabetes, heart problems, or high blood pressure.
When treating allergies in older adults, safety is just as important as getting rid of the symptoms. Seniors can breathe easier, stay clear-headed, and stay safe by choosing newer, second-generation antihistamines.
