This paper reports the results of an experimental study which has been carried out in order to perform the frictional and flow field analyses of the sinusoidal pulsatile pipe flow in laminar regime and at onset of transition. Herein the frictional field analysis is presented. The flow resistance in terms of time-averaged pressure drop and time-averaged friction factor is investigated and some correlation attempts are given in order to highlight the effects of time-dependent parameters such as Womersley number. A new parameter as a normalized pressure drop which gives a novel contribution to the literature is also introduced.