Opcon-A

Naphazoline/pheniramine, sold under the brand name Naphcon-A among others, is a combination eye drop used to help the symptoms of allergic conjunctivitis such as from hay fever.[2] It contains naphazoline and pheniramine.[2][1] It is used as an eye drop.[1] Use is not recommended for more than three days.[3] Side effects may include allergic reactions, eye pain, and dilated pupils.[2][4&... [wikipedia]