Neosynephrin-Pos 10 % (Phenylephrine Hydrochloride)

Phenylephrine Hydrochloride, the active ingredient in Neosynephrin-Pos 10 %, is a alpha-1 adrenergic agonist presented as a 10% w/v ophthalmic solution for ocular (topical) use. It is used to induce pupil dilation (mydriasis) and cycloplegia during diagnostic eye examinations and ophthalmic procedures in both adult and pediatric patients.

GNH USA supplies Neosynephrin-Pos 10 % as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Phenylephrine Hydrochloride is an alpha‑1 adrenergic agonist used in ophthalmology to produce pupil dilation.

- Diagnostic eye examinations: provides rapid mydriasis to allow thorough fundus evaluation and retinal imaging. - Ophthalmic surgery: creates cycloplegia to relax the ciliary muscle and maintain a stable, dilated pupil during intra‑ocular procedures. - Laser ophthalmic procedures: facilitates adequate pupil dilation for laser iridotomy, retinal photocoagulation or other laser treatments.

Phenylephrine ophthalmic solution may cause local and systemic adverse reactions.

Common Side Effects: - Burning or stinging sensation in the eye. - Conjunctival redness. - Transient blurred vision. - Increased intra‑ocular pressure. - Headache. - Mild ocular discomfort.

Serious or Rare Side Effects: - Severe hypertension or hypertensive crisis. - Cardiac arrhythmias. - Acute angle‑closure glaucoma. - Systemic vasoconstriction leading to peripheral ischemia. - Anaphylactic or severe allergic reactions. - Persistent mydriasis causing photophobia.

Before using Neosynephrin-Pos 10 %, consider the following safety measures.

- Pregnancy: safety not established; avoid unless clearly needed. - Breastfeeding: unknown excretion; weigh potential risks against benefits. - Narrow‑angle glaucoma: contraindicated due to risk of angle‑closure. - Cardiovascular disease: monitor blood pressure and heart rate for pressor effects. - Concurrent sympathomimetic drugs: may enhance systemic vasoconstriction. - Store at room temperature: keep in the original container, protect from light and moisture.

Phenylephrine may interact with other medications, requiring caution.

Major Interactions (Avoid): - Monoamine oxidase inhibitors (MAOIs): risk of hypertensive crisis. - Tricyclic antidepressants: additive pressor effect. - Beta‑blockers: may mask tachycardia caused by phenylephrine.

Moderate Interactions (Monitor Closely):\n- Other sympathomimetic agents: cumulative vasoconstriction. - Topical ocular anesthetics: may increase systemic absorption and cardiovascular effects.