Phenylephrine is a sympathomimetic amine.Formulations may include other ingredients like fillers, binders, and coatings depending on the specific product.
Temporary relief of nasal congestion associated with the common cold, hay fever, or other upper respiratory allergies.
Temporary relief of sinus congestion.
Frenin Inj (Phenylephrine) acts as a decongestant by stimulating alpha-adrenergic receptors in the blood vessels of the nasal passages. This causes vasoconstriction, reducing swelling and congestion.
Store at room temperature, away from moisture and direct sunlight. Keep out of reach of children.
Always follow the directions on the product label.
Do not exceed the recommended dose.
For oral formulations, take with a full glass of water.
For nasal sprays, follow the instructions carefully regarding the number of sprays and frequency of administration.
Nervousness
Dizziness
Headache
Increased blood pressure
Insomnia
Rapid heart rate
Nausea
Allergic reactions (rash, itching, swelling)
May increase the risk of side effects. Avoid alcohol while taking phenylephrine.
May cause drowsiness or dizziness. Avoid driving or operating machinery if affected.
Consult a doctor before using phenylephrine during pregnancy or breastfeeding.
Follow age-appropriate dosage instructions carefully; consult a pediatrician for children under 12.
Caution is advised in patients with kidney disease. Consult a doctor before use.
Caution is advised in patients with liver disease. Consult a doctor before use.
Package inserts of specific phenylephrine products.
National Institutes of Health (NIH) databases
Reputable medical websites and journals
