Sapere

Whether it is emergency or a normal pace routine pain. it is trending alot in under developed countries and even in developed one to prefer IV over oral when the pain for any cause reaches its maturity. it actually depends upon protocol and patient’s desire to reduce the pain first, then to treat the cause. Sapere wanna aware people for anaphylaxis\side effects for choosing IV over oral. 
IV always penetrates in the vein and it tooks no minute to IV to produce its effect that’s why, the side effect\reaction\anaphylaxis for IV will appear in no minute. this will give no time to Dr to cop up his patient’s situation if anaphylaxis occurs due to that IV.