Nasal Decongestant May Vitiate and Cause Medicinal Rhinitis
Nasal decongestant is a vasoconstricting medication, which decreases blood vessel size. The active principles of the major decongestants found in Brazil are nafazolin, phenoxazoline and oxymetazoline.
The nasal mucosa, which is the covering that covers the entire nasal cavity, is very rich in blood vessels, which have the capacity to contract and dilate as needed. This mechanism is important for two reasons. The first is by allowing the air to be heated and humidified in the nose until it reaches the lungs. The second reason is to increase the surface of the nasal cavity to filter out harmful particles and assist in cleaning the cavity.
Excessive and continuous use of the decongestant means that the patient has difficulty breathing in the nose and should seek a doctor
Certain situations , such as an allergic crisis or inflammation caused by colds and sinusitis, lead to dilated blood vessels and, consequently, to a stuffy nose. Nasal decongestant reduces this dilation and leads to rapid relief of symptoms.
The problem is that the nasal decongestant is not treating the cause of the problem, only the consequence. Its effect is short and its absorption is reduced with the passage of time. The person then feels the need to use the medicine in an increasingly shorter interval.
Another issue is that the decongestant itself, which is usually associated with a preservative, generates an irritation of the nasal mucosa, leading to what we call rhinitis drug therapy. Treatment of drug rhinitis requires patient awareness, and corticosteroid medications may be used to aid in this process.
Excessive and continuous use of decongestant means that the patient has difficulty breathing in the nose and should see a doctor. Chronic rhinitis and sinusitis and septum deviation may be the cause. Decongestants are indicated only in acute conditions, such as bouts of rhinitis, acute sinusitis and colds, and their use should not exceed 5 days.
Decongestants should be avoided in certain diseases: hypertension, heart problems, glaucoma intraocular pressure) and elderly patients with enlarged prostate. In children, nasal decongestants should be used only as directed, as they may have serious effects, such as cardiorespiratory depression and even death.
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