Untitled Quiz

A drug's ability to produce an effect at a lower dose compared to another drug in the same class.

The maximum effect a drug can produce, regardless of the dose.

A fundamental concept in pharmacology that studies a patient's response to different doses of a drug.

A drug that binds to a receptor and activates it, mimicking the action of a natural substance.

A drug that binds to a receptor but produces a weaker response compared to a full agonist.

A drug that blocks the action of another drug or natural substance by binding to its receptor without activating it.

A specific protein on a cell that a drug can bind to and elicit a response.

Efficacy is more important for the success of pharmacotherapy because it determines the maximum effect a drug can achieve, while potency only indicates how much of a drug is needed to achieve a certain effect.

A molecule inside a cell that relays signals from a receptor on the cell surface to the interior of the cell, triggering biochemical changes.

Receptors located inside the cell, often within the cytoplasm or nucleus, that bind to drugs or hormones that can pass through the cell membrane.

Some medications bind to intracellular receptors and can influence protein synthesis by either stimulating or inhibiting its processes.

Different versions of the same receptor type that have slightly different structures and responses to drugs.

Drug actions that don't involve binding to specific cellular receptors but instead affect cellular functions in a more general way.

The ability of a substance to pass through a membrane, often influenced by drugs.

A drug action that reduces the ability of a cell membrane to generate electrical signals.

Specialized proteins embedded in cell membranes that transport substances across the membrane, often affected by drugs.

Efficacy is the maximum response a drug can produce, while potency is the amount of drug needed to achieve a certain effect.

Efficacy determines the maximum effect a drug can achieve, regardless of dose, which is crucial for successful treatment.

Receptors are protein molecules on cells that drugs bind to, triggering specific responses.

Drugs modulate existing physiological and biochemical processes by interacting with specific receptor molecules in the body.

Receptors exist in the body to bind endogenous molecules like hormones, neurotransmitters, and growth factors. They are not solely for drugs.

A drug attaches to its receptor like a USB drive docks to a computer port. The fit is specific and small changes can drastically change the binding.

Receptors can be activated by voltage changes across the membrane (voltage-gated) or by binding of neurotransmitters (chemical-gated).

When an electrical signal reaches the nerve ending, voltage-gated calcium channels open allowing calcium to enter and trigger the release of neurotransmitters.

A drug is more potent than another if it produces a desired effect at a lower dose compared to the other drug.

The maximum effect a drug can produce, regardless of the dose.

Drugs that inhibit the effects of an agonist not by competing for a receptor, but by affecting its absorption, metabolism, or excretion.

They can interact with each other, potentially influencing the effects of both drugs.

The effects of taking multiple drugs or consuming certain foods along with a medication.