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Author: Admin | 2025-04-28
Thinkingdementiaconfusionfast heart rateseizuresLong-term side effectsOver-the-counter (OTC) Benadryl is approved for temporary or short-term use and is not intended for long-term use. There is very little scientific research about the long-term effects of Benadryl.Some side effects that may occur with long-term use include:constipationblurred visionmemory problems and dementia (especially in older adults)anxietydependence, which means your body needs the drug to function as usualTalk with your doctor about how often you have allergy symptoms. If you have symptoms frequently (more often than about 4 days per week), there may be a safer, more effective medication for you than Benadryl.DementiaBenadryl and some other antihistamine drugs can sometimes cause decreased memory, confusion, and impaired thinking. These side effects are more common in older adults.In addition, taking Benadryl long term might increase the risk of dementia, such as Alzheimer’s disease, especially in older adults. In one study, people over the age of 65 years who took medications such as Benadryl daily for 3 years or longer had an increased risk of dementia or Alzheimer’s disease.To prevent this possible side effect, it is important to use the lowest effective dose of Benadryl for the shortest time possible. If you need to take an antihistamine long term, talk with your doctor or pharmacist about other options.HallucinationsHallucinations aren’t a typical side effect of Benadryl. However, they can occur in people who take very high doses of Benadryl. If you experience hallucinations while taking Benadryl, don’t take any more of the medication. If you think you need medical treatment, call your doctor or 911 (or your local emergency number).Restless legs syndromeSome antihistamines, including Benadryl, can worsen symptoms of restless legs syndrome. If you have restless legs syndrome, talk with your doctor or pharmacist about other medication options.DepressionDepression isn’t a side effect that typically happens in people who take Benadryl.If you have symptoms of depression while taking Benadryl, talk with your doctor. Your doctor may want to evaluate your symptoms. They may also recommend different medication options.Weight gainWeight gain can happen in some people who take diphenhydramine, the drug that Benadryl contains. If you have unwanted weight gain while taking Benadryl, talk with your doctor or pharmacist about other medication options.ConstipationBenadryl can cause constipation, especially if you use it regularly. If you have constipation, talk with your doctor or pharmacist about other medication options instead of Benadryl.Driving warningBenadryl can impair your ability to drive because it may cause excessive sleepiness. If
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