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Pseudoephedrine is a drug used alone or in combination with other medicines to treat a blocked nose due to cold, flu or allergy. Makers of pseudoephedrine-containing drugs include Reckitt ...
Therapeutically, fexofenadine is a selective peripheral H 1 blocker. It is classified as a second-generation antihistamine because it is less able to pass the blood–brain barrier and cause sedation, compared to first-generation antihistamines. [12][13] It was patented in 1979 and came into medical use in 1996. [14]
The FDA assembled its outside advisers to take another look at phenylephrine, which became the main drug in over-the-counter decongestants when medicines with an older ingredient ...
“There’s so many other products out there that really do work,” Dr. James Tracy, vice president of the American College of Allergy, Asthma and Immunology, previously told Yahoo Life.
Pseudoephedrine, sold under the brand name Sudafedamong others, is a sympathomimeticmedicationwhich is used as a decongestantto treat nasal congestion. [1][13][2]It has also been used off-labelfor certain other indications, like treatment of low blood pressure.
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 ]
Typically, people take antihistamines as an inexpensive, generic (not patented) drug that can be bought without a prescription and provides relief from nasal congestion, sneezing, or hives caused by pollen, dust mites, or animal allergy with few side effects. [ 1 ] Antihistamines are usually for short-term treatment. [ 1 ]
A decongestant, or nasal decongestant, is a type of pharmaceutical drug that is used to relieve nasal congestion in the upper respiratory tract. The active ingredient in most decongestants is either pseudoephedrine or phenylephrine (the latter of which has disputed effectiveness). Intranasal corticosteroids can also be used as decongestants and ...
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