Podcast
Questions and Answers
Which classification of sympathomimetics includes adrenaline, noradrenaline, isoprenaline, and dopamine?
Which classification of sympathomimetics includes adrenaline, noradrenaline, isoprenaline, and dopamine?
- According to chemical structure (correct)
- According to mechanism of action
- According to selectivity
- None of the above
Which type of sympathomimetic drugs act directly on α or β receptors?
Which type of sympathomimetic drugs act directly on α or β receptors?
- Direct acting drugs (correct)
- Indirectly acting drugs
- Mixed acting drugs
- None of the above
Which sympathomimetic drugs cause the release of norepinephrine from nerve endings or block the reuptake of norepinephrine?
Which sympathomimetic drugs cause the release of norepinephrine from nerve endings or block the reuptake of norepinephrine?
- Mixed acting drugs
- Noncatecholamines
- Indirectly acting drugs (correct)
- Catecholamines
Which type of adrenergic receptors agonists may stimulate both alpha and beta receptors?
Which type of adrenergic receptors agonists may stimulate both alpha and beta receptors?
Which sympathomimetic drug acts partly directly and partly by causing the release of norepinephrine from nerve endings?
Which sympathomimetic drug acts partly directly and partly by causing the release of norepinephrine from nerve endings?
Which sympathomimetic drug is a noncatecholamine?
Which sympathomimetic drug is a noncatecholamine?
Which type of sympathomimetic drug acts partly directly and partly by causing the release of norepinephrine from nerve endings?
Which type of sympathomimetic drug acts partly directly and partly by causing the release of norepinephrine from nerve endings?
Which sympathomimetic drug primarily acts by causing the release of norepinephrine from nerve endings or blocking the reuptake of norepinephrine?
Which sympathomimetic drug primarily acts by causing the release of norepinephrine from nerve endings or blocking the reuptake of norepinephrine?
Which type of adrenergic receptors agonists may be selective or non-selective in action?
Which type of adrenergic receptors agonists may be selective or non-selective in action?
Which sympathomimetic drug is a direct acting drug that acts on α or β receptors?
Which sympathomimetic drug is a direct acting drug that acts on α or β receptors?
Flashcards
Sympathomimetic Classification by Structure
Sympathomimetic Classification by Structure
Adrenaline, noradrenaline, isoprenaline, and dopamine are classified as sympathomimetics based on their chemical structure.
Direct-acting sympathomimetics
Direct-acting sympathomimetics
These drugs directly activate alpha or beta receptors.
Indirect-acting sympathomimetics
Indirect-acting sympathomimetics
These drugs cause the release of norepinephrine or block its reuptake.
Adrenaline Receptor Agonist
Adrenaline Receptor Agonist
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Ephedrine's Mechanism
Ephedrine's Mechanism
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Non-catecholamine sympathomimetic
Non-catecholamine sympathomimetic
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Amphetamine's Action
Amphetamine's Action
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Adrenergic Receptor Agonist types
Adrenergic Receptor Agonist types
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Isoprenaline Mechanism
Isoprenaline Mechanism
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Study Notes
Sympathomimetic Classification
- Adrenaline, noradrenaline, isoprenaline, and dopamine are classified as catecholamines.
Direct-Acting Sympathomimetics
- Direct-acting sympathomimetic drugs act directly on α or β receptors.
- Direct-acting sympathomimetics may stimulate both alpha and beta receptors.
Indirect-Acting Sympathomimetics
- Indirect-acting sympathomimetic drugs cause the release of norepinephrine from nerve endings or block the reuptake of norepinephrine.
Mixed-Acting Sympathomimetics
- Mixed-acting sympathomimetic drugs act partly directly and partly by causing the release of norepinephrine from nerve endings.
- Examples of mixed-acting sympathomimetics include ephedrine and pseudoephedrine.
Non-Catecholamine Sympathomimetics
- Amphetamine is a noncatecholamine sympathomimetic drug.
Selective and Non-Selective Adrenergic Agonists
- Adrenergic receptors agonists may be selective or non-selective in action.
- Selective agonists stimulate only alpha or beta receptors, while non-selective agonists stimulate both.
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Description
Test your knowledge of sympathomimetic drugs with this quiz that covers their classification based on chemical structure and mechanism of action. Identify the different types of sympathomimetics and their effects.
