As you are mentioning that you are not doctor but you have give your opinion and think it's respect it that and everybody has its own opinion when you are right or a medication or the best way and oral is good but the thing is it takes time and most of the time while I am at clinic I prefer 2 gave oral medication and the reason is that because most of the time while we are giving medication the patient have a firm believed that water would be the way to give drug so I think the best way to give is the oral but if the patient is unable to bear and the pain so and that way we can give the intravenous or intramuscular best of luck