2024年7月24日 · Phenylephrine works by directly stimulating receptors in the blood vessels of the nose and other parts of the body (called alpha-1 adrenergic receptors), causing vasoconstriction (narrowing of the blood vessels). This reduces nasal congestion by preventing fluid from draining from the blood vessels into the tissues lining the nasal passages.

2023年8月31日 · Phenylephrine is a decongestant that constricts (shrinks) dilated blood vessels within the nose, relieving congestion. Injectable forms may also be used to increase blood pressure. Phenylephrine works by directly stimulating alpha-1 adrenergic receptors in the arteries causing vasoconstriction (narrowing of the blood vessels).

2024年4月7日 · Talk with the doctor before giving this medicine (phenylephrine tablets) to a child. Tell your doctor if you are pregnant, plan on getting pregnant, or are breast-feeding. You will need to talk about the benefits and risks to you and the baby. How is this medicine (Phenylephrine Tablets) best taken?

2024年4月11日 · Get emergency help immediately if any of the following symptoms of overdose occur while taking phenylephrine: Symptoms of overdose. feeling of fullness in the head; pounding or rapid pulse; tingling in the arms or legs; vomiting; Other side effects of phenylephrine. Some side effects of phenylephrine may occur that usually do not need medical ...

Phenylephrine nasal is used to treat nasal congestion and sinus pressure caused by allergies, the common cold, or the flu. Phenylephrine may be used to treat congestion of the tubes that drain fluid from your inner ears, called the eustachian (yoo-STAY-shun) tubes. Phenylephrine nasal may also be used for purposes not listed in this medication ...

2024年6月10日 · Some clinicians state optimum concentration of phenylephrine hydrochloride is 0.05 mg/mL (1:20,000). Solutions have been prepared for regional anesthesia by adding 1 mg of phenylephrine hydrochloride to each 20 mL of local anesthetic solution. Some pressor response can be expected when at least 2 mg is injected. Nasal Congestion Oral

Detailed Phenylephrine dosage information for adults and children. Includes dosages for Nasal Congestion, Hypotension and Shock; plus renal, liver and dialysis adjustments.

2023年10月18日 · Do not take phenylephrine liquid for longer than you were told by your doctor. Different brands of phenylephrine liquid may be for use in different ages of children. Talk with the doctor before giving phenylephrine liquid to a child. Tell your doctor if you are pregnant, plan on getting pregnant, or are breast-feeding.

2024年3月4日 · Phenylephrine ophthalmic (for the eyes) is used to relieve eye redness, dryness, burning, and irritation caused by wind, sun, and other irritants. Prescription-strength phenylephrine ophthalmic is used to constrict blood vessels in the eye and to dilate (make bigger) the pupil for conditions such as glaucoma , before surgery, and before eye ...

2024年11月7日 · Products that include phenylephrine as an active ingredient include Sudafed PE, Vicks Sinex and Benadryl Allergy Plus Congestion. In fact, "it is important to note that some products only contain oral phenylephrine as a single, active ingredient," the FDA said in a statement released Thursday.