Chemical messengers like phenylethylamine, adrenaline, dopamine, and norepinephrine are released in the brain when meeting someone desirable, binding to receptors and producing feelings of attraction. These messengers work as agonists, similarly to the body's natural response, or antagonists, blocking the cell response. While initial attraction may be influenced by this "love cocktail" flooding the brain, relationships require more than chemicals alone and mature beyond the initial euphoria as the chemicals wear off.

1. Introduction to Pharmacology Receptors Chemical Messengers Mechanism of Drug Action

2. Romantic Euphoria Brain Chemistry Love Cocktail

3. Meet someone you find desirable AFFINITY (Attraction) Release of Neurotransmitters * Phenylethylamine (PEA) * Adrenaline * Dopamine * Norephinephrine

4. chemical messengers--- reach & recognize target cell--- bind with specific protein molecules on surface or within cell (RECEPTORS!)--- produce some effect

6. Affinity (Attraction!) - strength by which messenger binds to its receptor site MOA -- Agonist (similiar body response) -- Antagonist (block--no cell response)

7. Bathe brain in Love Cocktail Feeling of Being in Love

8. Free Will ....or manipulation with medication ..what happens when chemicals wear off?

9. "I guess it wasn't love after all" Mature Relationship

10. Drug Therapy Goal -- to produce a response in the body that results in the CURE or CONTROL of a specific disease or condition.