Local dental anesthesia by infiltration or nerve block injections in adults. Anesthesia may last two to three times longer than lidocaine and mepivacaine for dental use, in many patients up to 7 hours. Onset of action is usually 2 to 10 minutes. No-methylparaben formulation to avoid allergic reactions on sensitive patients. 100 percent latex free components to help reduce allergic responses. Mylar label covered glass cartridges to minimize risk of wound in the event of a cartridge breakage.