Chemistry:Naphcon-A
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Naphcon-A is a brand of eye drops produced by Alcon Laboratories, Inc., a pharmaceutical products company based in Fort Worth, Texas. It is said to relieve the symptoms of itchy red eyes.[1]
The two active ingredients in Naphcon-A are naphazoline hydrochloride (0.025%), a vasoconstrictor to eliminate redness of the eyes, and pheniramine maleate (0.3%), an antihistamine to stop itching.[2] It also contains benzalkonium chloride (0.01%) as a preservative.
Use
Naphcon-A is administered topically with 1 to 2 drops applied to the affected eye(s) up to 4 times daily.[2]
Adverse effects
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- Pupils may become enlarged temporarily
- Overuse may cause more redness
- Those with heart disease, high blood pressure, narrow angle glaucoma or who have urination trouble are discouraged from using the product
- It is recommended to remove contact lenses before use. Use with contact lenses can lead to reduced oxygenation of the underlying cornea
- If infants or children accidentally ingest the drops, it may lead to coma and significant reduction in body temperature. If such ingestion occurs, immediately calling a poison control center is recommended[2]
References
- ↑ Naphcon A is available over the counter. (1995). Ophthalmology Times, 20(16), 4.
- ↑ 2.0 2.1 2.2 "Naphcon A Official FDA information". https://www.drugs.com. https://www.drugs.com/pro/naphcon-a.html. Retrieved 24 April 2013.
External links
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