Wiktionary
tromantadine
n. An antiviral drug derived from adamantane and used to treat herpes simplex.
Wikipedia
Tromantadine
Tromantadine is an antiviral medicine used to treat herpes simplex virus. It is available in a topical gel under trade names Viru-Merz and Viru-Merz Serol. Its performance is similar to aciclovir.
Like rimantadine, amantadine, and adapromine, tromantadine is a derivative of adamantane.