Notes in II. Antihistamines

To Subscribe, use this Key

Status	Last Update	Fields
Published	10/21/2024	Which of the following drugs is classified as a physiological antagonist to histamine?A) DiphenhydramineB) PromethazineC) EpinephrineD) Doxylamine
Published	10/21/2024	Cromolyn and nedocromil are primarily used to:A) Block H1 receptorsB) Act as inverse agonists at H1 receptorsC) Release histamine from mast cellsD) St…
Published	10/21/2024	Doxylamine is known for its effects in which of the following areas?A) Antinausea and antiemetic actionsB) Local anesthesiaC) Antiparkinsonism effects…
Published	10/21/2024	The primary action of first-generation H1-antihistamines, such as diphenhydramine, in treating Parkinsonism is due to their ability to:A) Block dopami…
Published	10/21/2024	Give four 1st generation antihistamines for anti-motion sickness activity
Published	10/21/2024	Meclizine (Bonine) is best characterized by which of the following properties?A) Marked sedation and antiemetic activityB) Marked sedation and anti-mo…
Published	10/21/2024	Chlorpheniramine (Chlor-Trimeton) is commonly found in which type of medication?A) AntidepressantsB) AntisedativeC) Over-the-counter cold medicationsD…
Published	10/21/2024	Promethazine (Phenergan) is known for its:A) Minimal sedationB) Antiemetic propertiesC) Lack of anticholinergic effectsD) Low dose requirements
Published	10/21/2024	Which of the following first-generation antihistamines has significant antiserotonin activity?A) CyproheptadineB) DiphenhydramineC) HydroxyzineD) Dime…
Published	10/21/2024	What 1st generation antihistamine medication acts as marked sedation?
Published	10/21/2024	What 1st generation antihistamine medication blocks alpha adreno receptor?
Published	10/21/2024	Which of the following second-generation antihistamines is known for its longer duration of action?A) FexofenadineB) CetirizineC) LoratadineD) Deslora…
Published	10/21/2024	Fexofenadine (Allegra) is primarily used for:A) Allergic rhinitis and chronic urticariaB) Motion sicknessC) InsomniaD) Anaphylaxis
Published	10/21/2024	Cetirizine (Zyrtec) is commonly dosed at:A) 10-20 mgB) 60 mgC) 5-10 mgD) 25-50 mg
Published	10/21/2024	Which of the following second-generation antihistamines has a lower sedation potential?A) CetirizineB) LoratadineC) DiphenhydramineD) Promethazine
Published	10/21/2024	What are the clinical uses of H1 antihistamine agents?
Published	10/21/2024	What are second-generation H1 antagonists primarily used to treat?
Published	10/21/2024	Which first-generation H1 antagonist is promoted for the prevention of motion sickness?
Published	10/21/2024	What is the only safe H1 receptor antagonist for pregnant women?
Published	10/21/2024	Name two non-sedating second-generation antihistamines.
Published	10/21/2024	Which generation of antihistamines is known for marked potential for producing sedation?
Published	10/21/2024	What are examples of antihistamines used to treat motion sickness?
Published	10/21/2024	H1 antihistamines are often the first drugs used to treat the symptoms of {{c1::allergic reactions}}.
Published	10/21/2024	Second-generation H1 antagonists are used mainly for the treatment of {{c1::allergic rhinitis}} and {{c2::chronic urticaria}}.
Published	10/21/2024	{{c1::Scopolamine}}, a first-generation H1 antagonist, is promoted for the prevention of motion sickness.
Published	10/21/2024	{{c1::Doxylamine}} is the only safe H1 receptor antagonist for pregnant women.
Published	10/21/2024	First-generation antihistamines have a {{c1::marked}} potential for producing sedation compared to second-generation antihistamines.
Published	10/21/2024	Non-sedating second-generation antihistamines include {{c1::Desloratadine}} and {{c2::Fexofenadine}}.
Published	10/21/2024	Antihistamines used for treating motion sickness include {{c1::Cyclizine}} and {{c2::Meclizine}}.
Published	10/21/2024	What are the effects of decreased neural excitement of the CNS by H1 antagonists?
Published	10/21/2024	Which H1 antagonist has alpha-adrenergic blocking response?
Published	10/21/2024	What are the chief clinical uses of H2 receptor antagonists?
Published	10/21/2024	Name the four H2 receptor blockers.
Published	10/21/2024	Which H2 receptor blocker was the first developed?
Published	10/21/2024	How are H2 receptor antagonists absorbed in the body?
Published	10/21/2024	Are there any selective H3 or H4 ligands currently available for general clinical use?
Published	10/21/2024	What are H3-selective ligands investigated for?
Published	10/21/2024	What is an example of an H3 receptor agonist?
Published	10/21/2024	What side effect is associated with H3 antagonists?
Published	10/21/2024	What potential conditions could H4 antagonists help treat?
Published	10/21/2024	Decreased neural excitement of the CNS by H1 antagonists leads to {{c1::sedation}}, decreased psychomotor performance, and increased appetite.
Published	10/21/2024	{{c1::Promethazine}} has an alpha-adrenergic blocking response.
Published	10/21/2024	H2 receptor antagonists are primarily used for inhibiting gastric acid secretion in the treatment of {{c1::ulcers}} and {{c2::heartburn}}.
Published	10/21/2024	The four H2 receptor blockers are {{c1::Cimetidine}}, {{c2::Ranitidine}}, {{c3::Famotidine}}, and {{c4::Nizatidine}}.
Published	10/21/2024	{{c1::Cimetidine}} was the first H2 receptor blocker developed.
Published	10/21/2024	H2 receptor antagonists are rapidly absorbed from the {{c1::intestine}}.
Published	10/21/2024	No selective H3 or H4 ligands are presently available for {{c1::general clinical use}}.
Published	10/21/2024	H3-selective ligands may be useful in treating {{c1::sleep disorders}}, {{c2::narcolepsy}}, and {{c3::cognitive and psychiatric disorders}}.
Published	10/21/2024	An example of an H3 receptor agonist is {{c1::Tiprolisant}}.
Published	10/21/2024	A side effect of H3 antagonists is {{c1::increased obesity}}.
Published	10/21/2024	H4 antagonists have potential in treating chronic inflammatory conditions like {{c1::asthma}}.
Status	Last Update	Fields