Parenteral drug therapy usually provides a more rapid uptake of drug and is therefore preferred over oral therapy, when available. Among the possible parenteral routes, the subcutaneous route generally has the longest time to effect and is the simplest to administer. The intravenous (IV) route has the most rapid onset of action but IV access can be difficult, time-consuming, and sometimes impossible to achieve. The intramuscular (IM) route provides a compromise, since it often results in an intermediate time to onset of action and can often be accomplished without difficulty. Adrenaline administration by autoinjector is viewed as the most effective first-line treatment for the management of anaphylaxis in the community. Autoinjectors provide fixed dosing, consistent needle penetration and depth, and can be administered quickly with a consistent dispersion pattern, which are important attributes in an anaphylaxis emergency. This information can be published in our peer reviewed journal with impact factors and are calculated using citations not only from research articles but also review articles (which tend to receive more citations), editorials, letters, meeting abstracts, short communications, and case reports. The inclusion of these publications provides the opportunity for editors and publishers to manipulate the ratio used to calculate the impact factor and try to increase their number rapidly. Impact factor plays a major role for the particular journal. Journal with higher impact factor is considered to be more important than other ones.