is the medicine vibramycin made of sulfur or sulfur products?

No it is not, it is a a tetracycline antibiotic.

Sherasi is correct. Vibramycin ® is one proprietary name of doxycycline, a member of the tetracycline class of antibiotics.

It does not belong to the class of antibiotics known as sulfonamides, often referred to as "sulfa" drugs, sometimes erroneously spoken of as "sulfur" drugs.