However, as with cold sores and shingles, Valtrex is not a cure for genital herpes. Valtrex was approved for treating chickenpox in children based on studies of acyclovir (ZoviraxÂ®), a very similar medication. Other studies have shown that Valtrex (which the body transforms into acyclovir) is safe in children.
Polyvinyl alcohol. Poly(vinyl alcohol) (PVOH, PVA, or PVAl) is a water-soluble synthetic polymer. It has the idealized formula [CH2CH(OH)]n. It is used in papermaking, textiles, and a variety of coatings. It is white (colourless) and odorless. It is sometimes supplied as beads or as solutions in water.
PVA Glues. Plain old white glue. PVA (Polyvinyl acetates) are probably the most common adhesive on the market. They come in a variety of formulas, all ever so slightly different, and specific to what they are designed to glue. Here are some tips for using Polyvinyl acetates.1  All PVAs are designed to work on porous materials only. PVAs are water based, and clean up with warm soapy water. 2  PVA is only toxic to ingest, it does not emit any harmful fumes, and is not hazardous to touch. 3  PVA sets best in good air circulation, at room temperature. 4  PVAs need pressure to adhere, see our info on clamping.