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Phenylpropanolamine was first synthesized in the early 20th century, in or around 1910. [21] [11] It was patented as a mydriatic in 1913. [21] The pressor effects of phenylpropanolamine were characterized in the late 1920s and the 1930s. [21] Phenylpropanolamine was first introduced for medical use by the 1930s. [23] [11]
Phenylephrine is a selective α 1-adrenergic receptor agonist with minimal to no β-adrenergic receptor agonist activity or induction of norepinephrine release. [5] [8] [15] It causes constriction of both arteries and veins. [12] Phenylephrine was patented in 1933 [16] and came into medical use in 1938. [17] It is available as a generic medication.
[13] [2] Phenylephrine has replaced pseudoephedrine in many over-the-counter oral decongestant products. [2] However, oral phenylephrine appears to be ineffective as a decongestant. [ 31 ] [ 32 ] In 2022, the combination with brompheniramine and dextromethorphan was the 265th most commonly prescribed medication in the United States, with more ...
Phenylephrine is found in a wide range of cold and flu medications, including Sudafed PE, Benadryl Allergy D Plus Sinus and Vicks DayQuil Cold and Flu Relief. Here’s what experts say are ...
The Phenylephrine Vs. Pseudoephedrine Debate, Explained While pseudoephedrine and phenylephrine are both nasal decongestants, they work in your body in different ways, says Purvi Parikh, MD, an ...
This section needs expansion with: substituents and structures for phenelzine, phenylephrine, phenylpropanolamine, selegiline, fenfluramine, mescaline, diethylpropion, desmethylselegiline, and benzphetamine from this table. [7]. You can help by adding to it. (February 2019)
Chlorphenamine is often combined with phenylpropanolamine to form an allergy medication with both antihistamine and decongestant properties, though phenylpropanolamine is no longer available in the US after studies showed it increased the risk of stroke in young women. [7] Chlorphenamine remains available with no such risk.
In addition to steroid nasal sprays and antihistamine sprays, Tracy says phenylephrine is still considered effective in nasal spray form — though Tracy warns it can be “habit-forming” if ...