Search results
Results from the WOW.Com Content Network
Side effects associated with phentolamine include headache, flushing, and nasal congestion. [23] Benign prostate hyperplasia, a disease in which urinary retention becomes an issue. Alpha-1 blockers can be used, but it can result in side effects such as increased urination and retrograde ejaculation.
This occurs due to profound hypotension caused by reversal of the alpha 1 effects while the reflex bradycardia is still in effect.). There is a low rate of side effects, largely due to atipamezole's high specificity for the α 2-adrenergic receptor. Atipamezole has a very quick onset, usually waking an animal up within 5 to 10 minutes.
Alpha-2 blockers (or α 2 blockers) are a subset of the alpha blocker class of drugs and are antagonists to the α 2 adrenergic receptor. They are mainly used in research, having found limited clinical application in human medicine.
However, the serotonin receptor antagonism has side effects such as weight gain and impaired movement. [11] Hence, alpha-2 blockers are not used clinically due to its extensive binding. Similar to the alpha-1 blocker, the alpha-2 family will also present the first-dose effect, but it is generally less pronounced compared with the alpha-1 ...
Alpha-adrenergic antagonists are also used for treatment of ureteric stones, pain and panic disorders, withdrawal, and anesthesia. [ 18 ] [ 2 ] Adrenergic antagonists are used to treat acute cardiovascular toxicity (e.g. in overdose ) caused by sympathomimetics , for instance caused by amphetamine , methamphetamine , cocaine , ephedrine , and ...
Selective alpha 2 blockers. The possibility for selective alpha 2 blockers to interact with non-target receptors, such as 5-HT serotonin receptors, can result in adverse effects, including weight gain and reduced movement due to serotonin receptor antagonism.
The first effective treatment for benign prostatic hyperplasia (BPH) was a non-selective alpha blocker phenoxybenzamine which was irreversible. Dibenzyline was the first brand name marketed. Today phenoxybenzamine is not the first choice due to many side effects like lowering blood pressure. [2]
It has a slower onset and a longer-lasting effect compared with other alpha blockers. It was also the first alpha blocker to be used for treatment of benign prostatic hyperplasia, [2] although it is currently seldom used for that indication due to unfavourable side effects. It has been used in the treatment of hypoplastic left heart syndrome. [3]