This is a prospective, randomized, blinded, comparator study. This study design is considered standard for establishing safety and efficacy data. Active treatment vapocoolant spray (Pain Ease Medium Stream) spray) will be used. There will be a placebo (sterile water) in this study. The population selected for this study, adults (excluding the very old, > 80 years old) represents a patient population that may benefit from vapocoolant spray. This is a patient population that according to the treating health care provider already requires venipuncture for blood draw but not intravenous cannulation. Because venipuncture is a painful procedure, vapocoolant may confer benefit for the relief of pain.
To determine the efficacy and safety of vapocoolant spray (Pain Ease Medium Stream) in decreasing the pain of venipuncture (blood draw)