-------are usually considered to be the classical sign of narcotic poisoning.

Death even in an addict, is almost always due to

opioid antagonist is

Patients with pulmonary edema are at special risk ,-------------have all been recommended as supportive therapy.However, all have unsure efficacy.

Naloxone should if possible be used only to return respiration to normal.

methylmorphine is

Codeine or methylmorphine :

Codeine is more potent than morphine.

Acute toxic ingestions of codeine produce the typical characteristic of
symptoms seen with morphine:

------------- is a mepridine congener used in combination with atropine in an antidiarrheal preparation.

Diphenoxylate is an extremely narrow dose range between therapeutic and toxic blood
concentrations.

---------is 7000 times as potent as morphine, and the minimum lethal
dose reported at 5 μg.

Meperidine Its structure is different to morphine, but similar to fentanyl

is prescribed for postoperative or chronic pain

Which one is a pure opioid agonist.

Pentazocine It exert its major actions on the :

The cardiovascular response to pentazocine differ from other opioids in that high doses cause increased blood pressure and heart rate, flushing, chills, and
sweating.

It is synthetic analog of methado

Clinical symptoms caused by propoxyphene overdose may completely dominate those of a toxic acetaminophen ingestion

A survey of cocaine users discovered that 61% were intranasal users, 21%smoked the free base form, and 18% were IV users.