Aqua10 ml

Aqua is a combination ophthalmic lubricant (artificial tears) product indicated for:

• Temporary relief of dry eye symptoms - an established, FDA OTC-monograph-supported use, including burning, stinging, irritation, and discomfort due to dryness of the eye (dry eye syndrome / keratoconjunctivitis sicca).
• Ocular lubrication as an artificial tear substitute in contact lens wearers, to relieve dryness and discomfort associated with contact lens wear - an established, well-supported use.
• Protection against further irritation and relief of dryness of the eye or exposure of the eye caused by reduced blinking, wind, sun, or prolonged visual tasks (e.g., screen use) - an established, well-supported use.
• Adjunct lubrication during and after ophthalmic examinations or minor procedures, and as supportive/adjunct care in chronic dry eye associated with conditions such as Sjögren's syndrome or post-refractive (e.g., post-LASIK) surgery - used as an adjunct alongside other prescribed therapy, not as a sole treatment for the underlying disease.

Aqua does not treat the underlying cause of dry eye; it provides symptomatic relief and lubrication only.

Each mL of Carboxymethyl Cellulose + Hypromellose ophthalmic solution typically contains Carboxymethylcellulose Sodium and Hypromellose (Hydroxypropyl Methylcellulose) as the active demulcent/lubricant ingredients, in concentrations that vary by manufacturer and product strength, along with tonicity agents (e.g., sodium chloride, potassium chloride), pH-adjusting agents, purified water, and, in multi-dose bottles, a preservative (e.g., benzalkonium chloride); preservative-free single-use vial presentations are also available.

Aqua is a sterile, topical ophthalmic solution combining two hydrophilic, high-molecular-weight cellulose derivative polymers that act as demulcents (lubricants). It is classified as an over-the-counter (OTC) artificial tear product used to relieve the burning, irritation, and foreign-body discomfort caused by dryness of the eye.

By combining two viscosity-enhancing agents with complementary physicochemical properties, Aqua is formulated to increase tear film stability, prolong ocular surface retention time, and provide a smooth, lubricating, protective coating over the cornea and conjunctiva.

Aqua belongs to the therapeutic class of Ophthalmic Lubricants / Artificial Tears (Ocular Demulcents), an over-the-counter category of topical eye preparations used for the symptomatic relief of dry eye and ocular surface irritation.

Mechanism of action: Carboxymethyl Cellulose + Hypromellose contains two cellulose-derivative polymers - carboxymethylcellulose sodium and hypromellose - that function as demulcents. Both are hydrophilic, viscosity-enhancing agents that, when instilled onto the ocular surface, form a smooth, lubricating film over the cornea and conjunctiva. This film increases the viscosity and stability of the natural tear film, prolongs pre-corneal retention time, reduces friction between the eyelid and the ocular surface during blinking, and reduces evaporative water loss from the tear film, thereby relieving the burning, stinging, and foreign-body sensation associated with dry eye.

Pharmacokinetics: Carboxymethyl Cellulose + Hypromellose acts locally on the ocular surface. Systemic absorption from topical ophthalmic use is negligible because these cellulose polymers are large molecules that are not meaningfully absorbed through the cornea or conjunctiva into the systemic circulation; any small amount that drains via the nasolacrimal duct is not expected to produce systemic pharmacologic effects.

For ophthalmic (topical eye) use only. Aqua is not for injection or oral use. Instill directly into the conjunctival sac (the pocket formed by gently pulling down the lower eyelid) of the affected eye(s).

Aqua has minimal potential for clinically significant drug interactions because it is applied topically to the eye and has negligible systemic absorption.

• Other topical ophthalmic medications: If other eye drops (e.g., prescription glaucoma medications, anti-allergy drops, or antibiotic eye drops) are used at the same time as Aqua, instillation should be spaced at least 5-10 minutes apart, since instilling drops too close together can dilute or wash out the earlier drop before it is absorbed, reducing its effectiveness.
• Preserved multi-dose products and soft contact lenses: If the Aqua formulation contains a preservative such as benzalkonium chloride, it may be absorbed by soft contact lenses; lenses should generally be removed before instillation, per product labeling.

Aqua is generally very well tolerated, reflecting its lubricant/demulcent mechanism of action. Reported side effects are typically mild and transient:

Common:

• Transient blurred vision immediately after instillation (usually resolves within seconds to a couple of minutes)
• Mild, temporary stinging, burning, or a foreign-body sensation on instillation
• Mild eye irritation or watering

Uncommon:

• Eye redness
• Eyelid crusting or stickiness (with prolonged frequent use)
• Hypersensitivity reactions (itching, swelling, or redness of the eye or eyelid) to a component of Aqua - discontinue use if this occurs (see Contraindications).

If eye pain, marked or persistent vision changes, or worsening redness occur, stop using Aqua and seek prompt medical evaluation, as these may indicate a condition other than simple dryness.

Pregnancy: Aqua is applied topically to the eye and has negligible systemic absorption, so systemic fetal exposure is expected to be minimal. Formal reproductive studies in pregnant women have not been conducted. As a general precaution, Aqua should be used during pregnancy only if clearly needed, and it is advisable to consult a physician before use, particularly with frequent or prolonged use.

Lactation: It is not known whether components of Aqua are excreted in human breast milk; given negligible systemic absorption from ophthalmic use, clinically significant transfer to breast milk is considered unlikely. A physician should be consulted before use during breastfeeding, especially with frequent or extended use.

Contact lens wear: Contact lens wearers should follow the specific product labeling of Aqua regarding whether lenses should be removed before instillation, since some preserved formulations are not compatible with soft contact lenses in place (see Interactions).

Persistent or worsening symptoms: If eye pain, changes in vision, persistent redness, or irritation continue for more than 72 hours or worsen despite use of Aqua, discontinue use and seek prompt evaluation by an eye care professional, as these symptoms may indicate an underlying condition (e.g., infection, corneal injury, or uveitis) requiring different treatment rather than continued self-treatment with a lubricant alone.

Avoiding contamination: To prevent contamination of the solution and risk of eye infection, avoid touching the dropper tip to the eye, eyelid, fingers, or any surface, and do not use Aqua if the solution has changed color or become cloudy.

Use with other eye drops: When Aqua is used together with other prescribed ophthalmic medications, space instillation appropriately (see Interactions) so the lubricant does not reduce absorption of the other medication.

Ocular overdose of Aqua (e.g., instilling excessive drops) is unlikely to cause serious harm and may cause transient blurred vision or watering that resolves on its own; excess solution can simply be gently wiped away.

Accidental oral ingestion of a small amount of Aqua (e.g., by a child) is unlikely to cause significant systemic toxicity given the nature of the ingredients, but as a general precaution, if a large amount is swallowed or if any concerning symptoms develop, contact a physician, poison control center, or seek immediate medical attention rather than attempting specific home treatment.

Store Aqua at room temperature (below 30°C), away from light and moisture. Keep the container tightly closed when not in use. Discard multi-dose bottles per the labeled in-use period after first opening; discard single-use preservative-free vials immediately after use. Keep out of reach of children.

Pediatric use: Aqua is commonly used in children for ocular dryness and lubrication as an over-the-counter product; however, formal controlled studies establishing safety and efficacy specifically in pediatric populations are limited, and use in young children should be guided by a physician or pharmacist, particularly regarding correct instillation technique.

Geriatric use: Aqua is frequently and safely used in elderly patients, in whom age-related dry eye is common; no specific dose adjustment is required based on age alone.

Renal and hepatic impairment: Because systemic absorption of Aqua after ophthalmic use is negligible, no dose adjustment is expected to be necessary in patients with renal or hepatic impairment.

Aqua may be used on an as-needed, short-term basis for occasional dryness, or on a long-term, chronic basis for persistent dry eye conditions, since it provides symptomatic relief rather than curing an underlying disease. If symptoms do not improve, persist beyond 72 hours, or worsen, use should be stopped and a physician or eye care professional consulted regarding further evaluation and treatment.

Carboxymethyl Cellulose + Hypromellose belongs to the drug classes: Ophthalmic Lubricant; Artificial Tear Preparation; Ocular Demulcent (a combination of two cellulose-derivative viscosity agents).

Carboxymethyl Cellulose + Hypromellose combines two hydrophilic cellulose polymers that act as ocular demulcents: they increase the viscosity of the tear film, prolong its retention on the ocular surface, and form a smooth protective, lubricating layer over the cornea and conjunctiva, thereby reducing friction, evaporative water loss, and the irritation associated with dry eye.

Aqua is widely used as an over-the-counter ocular lubricant in children for symptoms of eye dryness or irritation, including in association with reduced blinking (e.g., prolonged screen use) or contact lens wear. Formal clinical trials specifically establishing safety and efficacy in pediatric age groups are limited, so use in infants and young children should be under the guidance of a physician or pharmacist, with attention to correct instillation technique and hygiene to avoid contamination.