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Phenylephrine is an oral medication primarily used as a decongestant. [5] [6] It is a selective α 1-adrenergic receptor activator which results in the constriction of both arteries and veins. [5] Common side effects include nausea, headache, and anxiety. [5] Phenylephrine was patented in 1927 and came into medical use in 1938. [7]
The side effects typically resolve either on their own or following a decrease in the dosage. Treatment is ceased in the event of gastrointestinal symptoms and not restarted until they have resolved. Gastrointestinal side effects are more common in cats receiving oral rather than topical treatment.
Pseudoephedrine acts indirectly on the adrenergic receptor system, whereas phenylephrine and oxymetazoline are direct agonists. The effects are not limited to the nose, and these medicines may cause hypertension (high blood pressure) through vasoconstriction; it is for this reason that people with hypertension are advised to avoid them. Most ...
The post Apoquel for Cats: Uses, Dosage, & Side Effects appeared first on CatTime. Apoquel is a medication prescribed for pets — particularly dogs — to alleviate symptoms associated with ...
Phenylephrine, sold under the brand names Neosynephrine and Sudafed PE among others, is a medication used as a decongestant for uncomplicated nasal congestion in the form of a nasal spray or oral tablet, [5] to dilate the pupil, to increase blood pressure given intravenously in cases of low blood pressure, and to relieve hemorrhoids as a suppository.
Many tricyclic antidepressants, tetracyclic antidepressants, antipsychotics, ergolines, and some piperazines like buspirone, trazodone, nefazodone, etoperidone, and mepiprazole antagonize α 1-adrenergic receptors as well, which contributes to their side effects such as orthostatic hypotension.
The mechanisms of sympathomimetic drugs can be direct-acting (direct interaction between drug and receptor), such as α-adrenergic agonists, β-adrenergic agonists, and dopaminergic agonists; or indirect-acting (interaction not between drug and receptor), such as MAOIs, COMT inhibitors, release stimulants, and reuptake inhibitors that increase the levels of endogenous catecholamines.
Cancer is the number-one disease-related killer of cats and dogs. Many cancer symptoms in cats are subtle and can be caused by another condition, but if you notice any of the following potential ...