



Sante Medical 12
Santen's top-tier formulation specialized for eye fatigue.
WORRIES For these concerns
Computer and smartphone use
Eyes feel strained after long use
Eye fatigue
Difficulty focusing
Blurred vision
Itchy eyes
Redness of the white of the eye
Continuing
MECHANISM Three causes of eye fatigue and blurriness and series features
The Sante Medical series addresses the three causes of eye fatigue and blurriness with optimal active ingredients for each.
Eye fatigue caused by overuse
Fatigue of focusing muscles and poor blood circulation. Focused on Vitamin B12 and Neostigmine.
Corneal damage and inflammation
Corneal damage caused by Contact lenses and UV rays. Focused on Zinc Sulfate and Epsilon-Aminocaproic Acid.
Age-related functional decline
Decreased tear secretion and dryness. Focused on Vitamin A (Retinol) and Vitamin E.
Sante Medical 12 is formulated specifically for "eye fatigue caused by overuse."
OVERVIEW Product Overview
Sante Medical 12 is an ophthalmic drug (Class 2 OTC Drug) developed by Santen Pharmaceutical. Centered on Vitamin B12 (Cyanocobalamin) and Neostigmine Methyl Sulfate, which work to relieve eye fatigue, it contains four ingredients at the maximum approved concentrations. Additionally, it includes Chondroitin Sulfate Ester Sodium to protect eye moisture, and Epsilon-Aminocaproic Acid and Dipotassium Glycyrrhizinate to reduce inflammation, balanced with a carefully considered 12 active ingredients. This product is part of Santen Pharmaceutical's top-tier ophthalmic drug series designed to respond to eye fatigue caused by prolonged use of computers and smartphones.
FEATURES Product Features
Four ingredients within approval standards
Maximum concentration formulation
Four ingredients—Vitamin B12, Neostigmine Methyl Sulfate, Chondroitin Sulfate Ester Sodium, and Chlorpheniramine Maleate—are included at maximum approved concentrations. A formulation pursuing high efficacy.
Specialized for relieving eye fatigue
Contains Vitamin B12
Contains Vitamin B12, which activates the ciliary muscle, and Neostigmine Methyl Sulfate, which improves focusing function, working together to reach deep into the eyes.
12 active ingredients
Well-balanced formulation
Formulated with 12 active ingredients that approach eye issues from multiple angles such as pain relief, moisturizing, anti-inflammation, metabolism promotion, and redness reduction, balanced to address various eye discomforts.
Corneal protection +
Keeps eyes moist
Chondroitin Sulfate Ester Sodium protects the cornea and prevents tear evaporation to maintain moisture. Sodium Hyaluronate (additive) is also included.
INGREDIENTS Active Ingredients, Amounts, and Functions
| Ingredient Name | Amount | Function |
|---|---|---|
| Vitamin B12 (Cyanocobalamin)Maximum Concentration | 0.02% | Activates the ciliary muscle to relieve eye fatigue. |
| Neostigmine Methyl SulfateMaximum Concentration | 0.005% | Improves eye fatigue by enhancing the focusing function. |
| Chondroitin Sulfate Ester SodiumMaximum Concentration | 0.5% | Protects the cornea and provides moisture to the eyes by preventing tear evaporation. |
| Vitamin B6 (Pyridoxine Hydrochloride) | 0.05% | Activates metabolism in eye tissues. |
| Panthenol | 0.05% | Activates metabolism in eye tissues. |
| L-Potassium Aspartate | 0.5% | Enhances respiration in eye tissues. |
| Taurine | 0.5% | Activates metabolism in eye tissues. |
| Chlorpheniramine MaleateMaximum Concentration | 0.03% | Suppresses the action of histamine to reduce eye inflammation and itching. |
| Epsilon-Aminocaproic acid | 1.0% | Suppresses the production of substances that cause inflammation. |
| Dipotassium glycyrrhizinate | 0.1% | Suppresses eye inflammation. |
| Zinc sulfate hydrate | 0.05% | By its astringent action, it suppresses eye inflammation. |
| Tetrahydrozoline hydrochloride | 0.03% | Suppresses redness of the conjunctiva (the white part of the eye). |
* Maximum concentration = maximum concentration formulation based on standards for over-the-counter ophthalmic drugs
EFFICACY Indications and Effects
For eye fatigue, conjunctival redness, eye blurriness (such as when there is a lot of eye discharge), eye itching, prevention of eye diseases (after swimming, when dust or sweat gets into the eyes, etc.), blepharitis (eyelid inflammation), eye inflammation caused by ultraviolet or other light rays (snow blindness, etc.), discomfort when wearing hard Contact lenses
DOSAGE Dosage and Administration
Instill the following amount 5 to 6 times a day.
| Age | Amount per instillation | Number of times per day |
|---|---|---|
| Adults and children (7 years and older) | 1 to 3 drops | 5 to 6 times |
| Under 7 years old | × Do not use | — |
- Strictly follow the dosage and administration instructions.
- When using for children, use under the guidance and supervision of a guardian.
- When instilling, avoid touching the tip of the container to the eyelid, eyelashes, or eyes (to prevent contamination).
- For eye drop use only.
COMPARISON Sante Medical Series Comparison Table
| Comparison items | Medical 12 (This product) |
Medical Guard & Repair |
Medical Active |
|---|---|---|---|
| Main concerns and features | Eye fatigue and redness | Corneal damage repair and inflammation | Eye fatigue, blurriness, and dryness due to aging |
| Number of active ingredients | ★ 12 types | 10 types | 9 types |
| Maximum concentration formulation count | 4 ingredients | ★ 6 ingredients | 5 ingredients |
| Vitamin B12 (Ciliary muscle and eye fatigue) |
✔ 0.02% | - | - |
| Zinc sulfate hydrate (Corneal repair and barrier) |
0.05% | ✔ 0.25% | - |
| Vitamin A (Tear secretion and protection) |
- | - | ✔ 50,000 units |
| Vitamin E (Blood flow improvement) |
- | - | ✔ 0.05% |
| Neostigmine (Focus adjustment) |
✔ | ✔ | ✔ |
| Chondroitin (Moisturizing and corneal protection) |
✔ | ✔ | ✔ |
| Epsilon-Aminocaproic acid (Anti-inflammatory) |
✔ 1.0% | ✔ 1.0% | ✔ 1.0% |
| Glycyrrhizic acid (Anti-inflammatory) |
✔ 0.1% | - | - |
| Redness relief ingredient (Tetrahydrozoline) |
0.03% | ✔ 0.05% | 0.01% |
| Panthenol (Tissue metabolism) |
✔ 0.05% | ✔ 0.05% | - |
| For people like this | Overusing eyes with PC and smartphones. Want to thoroughly care for redness and eye fatigue. | Eyes are easily irritated by Contact lenses or UV rays. Want to focus on repairing corneal damage. | Concerned about dry eyes, blurriness, and fatigue due to aging. Want to keep eyes moist for a long time. |
* Ingredient content is based on the official Santen Pharmaceutical package inserts for each product. Please check the latest product labeling at the time of purchase.
* Sante Medical Guard & Repair is a new product released in November 2025.
CAUTION Precautions for Use / Storage Precautions
- Do not use if you have had allergic reactions to this product or its ingredients.
- Do not use on the following areas: around the eyes or inside the mouth.
- Do not use while wearing soft Contact lenses.
- People receiving treatment from a doctor or dentist
- People who have had allergic reactions to medicines
- People with the following symptoms: severe eye pain
- People diagnosed with: glaucoma
- If allergic symptoms such as redness, itching, or swelling appear after instilling, stop use immediately and consult a doctor, pharmacist, or registered seller.
- If eye blurriness does not improve, consult a doctor, pharmacist, or registered seller.
- Store tightly closed in a cool place away from direct sunlight.
- Keep out of reach of children.
- Do not transfer to other containers (this may cause misuse or change the quality).
- Do not use products past their expiration date.
- Use within 3 months after opening as a guideline.
- Close the cap immediately after instilling the eye drops.
* For product details and the latest information, be sure to check the package insert included with the product.
【Class 2 OTC Drug】Please read the "Precautions for Use" carefully before using this medicine.
















































































