Overview of Unilarm
| Property | Description |
|---|---|
| Active ingredient | Sodium Chloride (NaCl) |
| Form | Ophthalmic solution (Collyre) |
| Pharmacological class | Lacrimal replacement agent |
| General purpose | Symptomatic relief of dry eyes |
| Origin | Derived (Sterile, manufactured aqueous solution) |
1. Defining Unilarm: Ophthalmic Solution and Lacrimal Replacement Agent
Unilarm is a sterile, single-ingredient product presented as an ophthalmic solution specifically designed for topical application to the eye. It is classified as a lacrimal replacement agent, meaning its primary function is to physically substitute or supplement the natural tear film on the ocular surface. Saline solutions are used as a foundation for managing basic tear film deficiencies. This formulation is commonly used to address the discomfort associated with situational dry eyes, such as dryness resulting from prolonged screen time or exposure to air conditioning.
2. Composition and Nature: Sodium Chloride and Isotonic Formulation
The active component in Unilarm is Sodium Chloride (NaCl), a well-established electrolyte and mineral salt. In this formulation, NaCl is combined with highly purified water to create a sterile base vehicle. Crucially, the solution is formulated to be isotonic, ensuring its concentration closely matches the natural osmotic pressure of human tears, a feature designed to minimize corneal irritation. Sodium Chloride is a key component in ophthalmic formulations due to its role in maintaining physiological tolerance. This precise, neutral formulation adheres to strict standards for use on the sensitive ocular surface.
3. General Purpose and Function: Rehydrating the Ocular Surface
The general purpose of Unilarm is the temporary and symptomatic relief of discomfort related to dryness. The solution functions through physical action, providing necessary humidification and lubrication to the corneal and conjunctival surfaces. By restoring a smooth, moist layer, it aids in minimizing physical symptoms such as burning, irritation, and the sensation of grittiness. This fluid replacement mechanism supports the overall comfort of the ocular surface without stimulating complex physiological responses, providing immediate relief from temporary eye strain.
Regulatory References

