how long does a morphine buzz last for you?

[night roller94]

i usually take around 150-175mg of instant release morphine sulphate when i use it and for me it always lasts well over 12 hours until the buzz is completely gone. everyone else who takes it tells me that im full of shit because its only suppost to last 5 hours tops. does anyone else gave this long drawn out high from morphine?

 

[opiatekrzy]

Morphine keeps me high all day and not sick the next day morphine sulphate er , even crushing the pills still does mays it's sulphate or ER idk