Pharmacology-Opiod Analgesics and Toxicity- CNS- MADE EASY!

Opioids are a class of drugs found in the opium poppy plant and that work in the brain to produce a variety of effects, including the relief of pain with many of these drugs.
The classification.
Their mechanism of action.
Types of receptors , mu , kappa and delta.
Their actions.
Morphine and related drugs for cancer pain relief.
Side effects and therapeutic uses