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A 1998 study found a half-life of 4.1 ± 0.3 hours in young men, 7.4 ± 3.0 hours in elderly men, 4.4 ± 0.3 hours in young women, and 4.9 ± 0.6 hours in elderly women. [81] In a 2018 study in children and adolescents, the half-life of diphenhydramine was 8 to 9 hours. [82]
Always be aware of the possible side effects of prescription and over-the-counter medicines, as some may cause your heart rate to increase, decrease or beat with an irregular rhythm.
Long-term use may increase the risk of both cognitive and physical decline. [14] [15] It is unclear whether they affect the risk of death generally. [14] However, in older adults they do appear to increase the risk of death. [16] Possible effects of anticholinergics include:
Taking medications like blood pressure and lipid-lowering drugs for more than 5 years is associated with a lower incidence of dementia, a new study has found.
The evidence does not report how antihistamines affect women differently than men. [1] Different studies have reported on antihistamine use in children, with various studies finding evidence that certain antihistamines could be used by children 2 years of age, and other drugs being safer for younger or older children.
A 2020 study published in the American Journal of Clinical Nutrition found that US women over 60 who ate more fruit and vegetables were less likely to experience fatigue, poor strength, and illnesses.
Benadryl Allergy is widely used as a sleep aid among adults. While it is not marketed as an over-the-counter (OTC) sleeping aid, most versions of Benadryl contain diphenhydramine, a drug with sedative properties. [6] Diphenhydramine (Benadryl) has also been used by parents to help improve their infant's sleep habits.
Concerns with polypharmacy and elderly groups are reduced medication adherence, increased fall risk, cognitive function impairment, and adverse drug reaction. [11] Almost 75% of clinic visits result in people obtaining a written prescription. [12] [13] More careful prescribing practices could increase medication adherence in elderly people.