The trademark VIAGRA is registered in Chile. It's registry includes text/words. This trademark protects the use rights on pharmaceuticals.
The record is owned by PFIZER PRODUCTS INC., SOCIEDAD ORGANIZADA EN CONFORMIDAD A LAS LEYES DEL ESTADO DE CONNECTICUT.
Class 5: (Pharmaceuticals) Pharmaceutical, veterinary and sanitary preparations; dietetic substances adapted for medical use, food for babies; plasters, materials for dressings; material for stopping teeth, dental wax; disinfectants; preparations for destroying vermin; fungicides, herbicides.
Class 30: (Staple foods) Coffee, tea, cocoa, sugar, rice, tapioca, sago, artificial coffee; flour and preparations made from cereals, bread, pastry and confectionery, ices; honey, treacle; yeast, baking-powder; salt, mustard; vinegar, sauces (condiments); spices; ice.