Sympathomimetic decongestants such as phenylephrine should be used with caution in clients who have a history of diabetes mellitus, hypertension, hyperthyroidism, are prone to narrow-angle glaucoma, prostatic hypertrophy, liver and kidney disorders, and ischemic heart disease.
Phenylephrine is a drug used to relieve nasal congestion which can be caused by the flu, colds, allergies, sinusitis, or bronchitis. However, these drugs cannot cure the disease that causes nasal congestion.
This drug works by reducing the swelling of the blood vessels in the nasal passages. That way, the airways become more open and breathing becomes relieved. Phenylephrine for nasal congestion is available in tablet and syrup form.
Learn more about the effect of decongestants here :
https://brainly.com/question/13912116
#SPJ4