17 Unexpected Side Effects of Common Medications You Should Discuss With Your Doctor

Akanksha Sharma

2. Antihistamines: From Allergy Relief to Cognitive Impairment

Diagnosis and treatment of allergy. Photo Credit: Envato @manjurulhaque

Antihistamines offer respite from the relentless symptoms of allergies, but they may also lead to cognitive impairment, particularly in older adults. These medications can cause drowsiness, confusion, and even memory problems by crossing the blood-brain barrier and affecting neurotransmitter activity. This effect is more pronounced with first-generation antihistamines, which are known for their sedative properties. Discussing alternative options, such as newer, non-sedating antihistamines, with your healthcare provider can help manage allergies without compromising mental clarity. Understanding the balance between symptom relief and cognitive health is essential for maintaining overall well-being.

BACK

(2 of 19)

<div class="ads ads-1 collapse-container group-display-adsense unit-2024-desktop-rail-336x600-long zone-slideshow-desktop-rail-bottom">
<script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-pub-6736552601239305"
     crossorigin="anonymous"></script>

<ins class="adsbygoogle"
     style="display:inline-block;width:300px;height:600px"
     data-ad-client="ca-pub-6736552601239305"
     data-ad-slot="7087745678"></ins>
<script>
     (adsbygoogle = window.adsbygoogle || []).push({});
</script>
<script>
  addBlurHandler('sdr-bottom', function (el, zone) {
    if (cf_utm_source === 'bing') {
        uetqApi('outbound_click', {
            'event_category': 'PPC',
            'event_label': 'Adsense',
            'event_value': '1'
        });
        console.log('Fired bing.');
    }
	
	if (cf_utm_source === 'google') {
		gtag('event', 'conversion', {
			'send_to': 'AW-17008664059/yUYKCMCtl7kaEPu7rq4_',
			'value': 0.0,
			'currency': 'USD'
		});
    	console.log('Fired Google Conversion.');
	}
	
    console.log('Fired pixel.');
});
</script>
</div>

OpenAI Playground 2025-05-13 at 10.55.45.png

<div class="ads ads-1 collapse-container group-display-adsense unit-2024-desktop-rail-336x280-sticky zone-slideshow-desktop-rail-sticky">
<script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-pub-6736552601239305"
     crossorigin="anonymous"></script>

<ins class="adsbygoogle"
     style="display:inline-block;width:300px;height:280px"
     data-ad-client="ca-pub-6736552601239305"
     data-ad-slot="9869999824"></ins>
<script>
     (adsbygoogle = window.adsbygoogle || []).push({});
</script>
<script>
  addBlurHandler('sdr-sticky', function (el, zone) {
    if (cf_utm_source === 'bing') {
        uetqApi('outbound_click', {
            'event_category': 'PPC',
            'event_label': 'Adsense',
            'event_value': '1'
        });
        console.log('Fired bing.');
    }
	
	if (cf_utm_source === 'google') {
	  gtag('event', 'conversion', {
		'send_to': 'AW-17008664059/yUYKCMCtl7kaEPu7rq4_',
		'value': 0.0,
		'currency': 'USD'
	  });
	  console.log('Fired Google Conversion.');
  	}

console.log('Fired pixel.');
});
</script>
</div>

2. Antihistamines: From Allergy Relief to Cognitive Impairment

MORE FROM HealthPrep