What is true of tolerance occurring in regular opium
abusers:
A. Tolerance develops to all actions of morphine
B. No tolerance occurs to euphoric and sedative
actions of morphine
C. No tolerance occurs to constipating and
miotic actions of morphine
D. Lethal dose of morphine is not significantly
increased
abusers:
A. Tolerance develops to all actions of morphine
B. No tolerance occurs to euphoric and sedative
actions of morphine
C. No tolerance occurs to constipating and
miotic actions of morphine
D. Lethal dose of morphine is not significantly
increased