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Sulfacetamide Sodium 10% Eye Drops
Sulfacetamide, for being an antibiotic of the sulfonamide type, is very potent with local action. It is solely used ophthalmically. Its target is superficially infective ocular surface such as conjunctivitis in eye care and prophylaxis post corneal abrasion or injury. Being unable to utilize this active site for the construction of folic acid, sensitive bacterial strains cannot produce folic acid and recipient bacteria multiply and grow quickly.
Clinical Indications
Bacterial Conjunctivitis: Aids in reducing redness, discharge, and irritation due to the presence of bacterial invaders in the eye.
Trachoma: Recommended as supportive therapy in chronic infectious eye conditions.
Corneal Ulcers: Enables healing with protection from secondary bacterial infections to the eye.
Blepharitis: Dealing with the eyelids’ inflammation when bacterial infection occurs.
Pathways of Action
Sodium sulfacetamide inhibits the bacterial enzyme dihydropteroate synthetase, where dihydropteroate is PABA bound. Since bacteria need PABA for synthesizing folic acid for cellular reproduction, the sulfacetamide delivers a competitive starvation of the bactericidal nutrient required for growth, giving rise to a bacteriostatic agent that stops growth.
Use:
- Preparation: Wash hands thoroughly with soap and water before use.
- Method of administration: Point the face toward the sky and gently pull down the lower eyelid to form a pocket. Administer drops without touching the tip of the dropper to the eye or eyelids.
- Dosage: Instill one or two drops in the affected eye(s) every one to three hours during the day or as directed by the ophthalmologist.
- Closing: Keep the eyes gently closed for a short time to allow proper absorption of the medication.
Side Effects
In addition to the above, hypersensitive individuals could experience:
A brief, mild stinging or burning following instillation.
Sensitivity to light (photophobia)
Temporary blurry vision
Eyelid swelling or itching
Safety Information: If you develop a skin rash, significant swelling, or joint pain while using this medication, stop usage immediately and consult a healthcare provider, as these could indicate a serious sulfonamide allergy.
Precautions & Storage
Contact lenses: Do not wear contact lenses during an active eye infection. Wait at least 15 minutes after instillation before wearing lenses, unless advised otherwise.
Contamination: Do not touch the dropper tip to any surface. Replace the cap tightly after use.
Color of Solution: If the solution turns dark brown or contains particles, discard it and use a new bottle.
Storage: Store at room temperature. Do not refrigerate. Protect from light.
Frequently Asked Questions (FAQs)
Q: Can I use Sulfacetamide drops for viral or fungal eye infections?
No. It is effective only against bacterial infections.
Q: How long should I continue the treatment?
Complete the full course even if symptoms improve to prevent recurrence and resistance.
Q: Can Sulfacetamide be used for acne?
It is available in topical forms for acne, but eye drops should never be used on the skin.
Q: Is it safe for children?
Yes, it is generally safe for children above two months, but dosage should be confirmed by a pediatrician.
Q: What if I miss a dose?
Use it as soon as you remember. If it is close to the next dose, skip the missed one. Do not double the dose.
Health Professional’s Note
Do not share eye drops, as eye infections are highly contagious. Avoid rubbing the eyes and use a clean towel daily until the infection resolves.
Disclaimer: The information provided is for educational purposes only and should not replace professional medical advice. Always read the medication leaflet and consult a healthcare provider before use.
