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The QTc interval is longer in females, as well as having a stronger response to IKr-blocking agents. In males, the presence of testosterone upregulates IKr channels and therefore decreases QT interval. [2] Stated otherwise, estrogens prolong the QT interval, while androgens shorten it and decrease the response to IKr-blocking agents. [citation ...
Topiramate, sold under the brand name Topamax among others, is a medication used to treat epilepsy and prevent migraines. [9] It has also been used in alcohol dependence and essential tremor. [9] For epilepsy this includes treatment for generalized or focal seizures. [10] It is taken orally (by mouth). [9]
The QT interval is a measurement made on an electrocardiogram used to assess some of the electrical properties of the heart.It is calculated as the time from the start of the Q wave to the end of the T wave, and approximates to the time taken from when the cardiac ventricles start to contract to when they finish relaxing.
The Arizona Center for Education and Research on Therapeutics (AZCERT) maintains the CredibleMeds database. Founded in 2000 at the University of Arizona as part of a network of 14 federally-funded CERTs, [9] AZCERT became a separate non-profit corporation in 2012 funded by the US Food and Drug Administration (FDA), research grants, and charitable contributions.
Long QT syndrome is associated with a prolonged QTc, although in some genetically proven cases of LQTS this prolongation can be hidden, known as concealed LQTS. [23] The QTc is less than 450 ms in 95% of normal males, and less than 460 ms in 95% of normal females. LQTS is suggested if the QTc is longer than these cutoffs.
Priapism is a non-intimate prolonged arousal that isn’t relieved by climax. It is a serious medical emergency that can cause pain, lasting damage to the privates and permanent dysfunction if it ...
QTc interval prolongation: 1 DB-RCT: 24: Was compared with risperidone in the one DB-RCT. Antidepressants: Citalopram: Negative symptoms: Well tolerated: 1 DB-RPCT: 61: Can prolong the QT interval and since clozapine can prolong the QT interval too it is advisable to avoid their concurrent use in patients with cardiovascular risk factors ...
A rare and often irreversible neurological condition characterised by involuntary movements of the face, tongue, lips and rest of the body. Most commonly occurs after prolonged treatment with antipsychotics. It is believed to be particularly uncommon with atypical antipsychotics, especially quetiapine and clozapine [29]
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