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Diphenhydramine is a potent anticholinergic agent and potential deliriant in higher doses. This activity is responsible for the side effects of dry mouth and throat, increased heart rate, pupil dilation, urinary retention, constipation, and, at high doses, hallucinations or delirium.
Diphenhydramine has a common side effect of drowsiness or sleepiness. [12] Because of these sedative properties, Benadryl is often used as a sleep aid in people with insomnia . A study published in the American Journal of Geriatric Psychiatry discovered that approximately one in three adults between the ages of 65 and 80 occasionally use over ...
Some drugs and medications affect heart rate, meaning you may have a lower maximum heart rate and target zone, says Dr. Steinbaum. “If you have a heart condition or take medication, ask your ...
Chronotropic effects (from chrono-, meaning time, and tropos, "a turn") are those that change the heart rate.. Chronotropic drugs may change the heart rate and rhythm by affecting the electrical conduction system of the heart and the nerves that influence it, such as by changing the rhythm produced by the sinoatrial node.
The most efficient way to lower your heart rate is through breathing, says Dr. Wang. “Deep exhalations can decrease your heart rate. Breathing in through the nose for the count of 4, holding it ...
Certain medications and medical conditions may also affect your heart rate. Always be aware of the possible side effects of prescription and over-the-counter medicines, as some may cause your ...
Structural heart disease, such as heart failure, myocardial infarction, and left ventricular hypertrophy, are also risk factors. Diuretic-induced hypokalemia and/or hypomagnesemia taken for heart failure can induce proarrthymia. The ischemia that results from myocardial infarctions also induce QT prolongation. [citation needed]
Muscarinic antagonist effects and muscarinic agonist effects counterbalance each other for homeostasis. Certain muscarinic antagonists can be classified into either long-acting muscarinic receptor antagonists (LAMAs) or short-acting muscarinic receptor antagonists (SAMAs), depending on when maximum effect occurs and for how long the effect ...
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