PharmQ3 Flashcards
imidazole, available in oral and topical forms
Ketoconazole
antiviral
(Roferon-A®) – is a protein substance with multiple roles in the body’s defense mechanisms
▪ Protects host cells from viruses
▪ Stimulates noninfected cells to produce antiviral proteins
▪ Mainly used in veterinary medicine for treatment of FeLV and ocular herpes in cats
▪ Adverse effects rarely seen in cats
Interferon
- Polyene antifungal that’s reserved for severe, systemic
fungal infections due to the adverse effect of nephrotoxicity. - Must be administered IV through dilution in 5 percent dextrose solution through a filter system and protected from light/moisture.
- Renal function should be monitored when using this drug.
Amphotericin
- Polyene antifungal found in various topical ointments and is also given orally for Candida albicans overgrowth in the mouth (oral thrush) and GI tract, often secondary to immune suppressive therapy and/or long-term antibiotic therapy.
- Although less toxic than the polyene antifungals adverse
effects of hepatotoxicity and cardiotoxicity have been reported.
Nystatin
- Fungistatic that’s only available as an oral preparation to treat
dermatophyte infections of the skin, hair and nails. - Absorption is enhanced when using the “ultramicrosize” form and if given with a fatty meal.
- The dosage regimen should continue until fungal cultures are negative and adverse effects include GI signs, and anemia/leukopenia in cats.
- Should not be given during pregnancy due to potential teratogenicity.
Griseofulvin
What are the adverse effects of methylxanthine drugs such as theophylline and aminophylline?
Adverse effects are usually dose related and include vomiting/diarrhea, tachyarrhythmias, CNS stimulation, tremors, and seizures.
What are the the uses, pharmacokinetics, and side effects of phenobarbital when used for therapy of seizures.
CNS depression (depresses motors centers of the cerebral cortex)
Side effects polyuria, polydipsia, polyphagia, liver enzyme elevation
Pharmacokinetics : Anticonvulsant barbiturate that undergoes “induced biotransformation” causing the rate of drug metabolism to be increased with continued use, also called the “tolerance” phenomenon.
Anesthetic
An agent that causes the loss of all sensation. May be described as local, regional, or surgical
Anticonvulsant
A drug used that inhibits seizure activity.
Sedative
A drug used to suppress brain activity and awareness with reduced excitement caused by sleepiness.
Analgesic
An agent that effects the loss of, or dissociation from pain. They work by stopping or preventing the perception of pain, the inflammatory process or the transmission of painful stimulus.
Stimulant
Used to Reverse CNS Depression Caused by CNS Depressant
Disinhibition
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What are the general adverse effects associated with use of opiate drugs
- Respiratory Depression (Decreased Oxygen Levels / Increased Carbon Dioxide Levels <- Dose Dependent)
- Bradycardia/Hypotension
- Thermoregulation (Hypothermia (rabbits, dogs) / Hyperthermia (cattle, goats, horses, cats))
- Diarrhea / Vomiting Initially (Constipation with prolonged use)
- Increased Auditory Response to Noise
- Miosis (Dog and Pig)
- Mydriasis (Cat and Horse)
- Sweating, seen especially in horses
What is the drug of choice for IV emergency treatment of status epilepticus?
Levetiracetam (Keppra)
Anticonvulsant that is not a controlled substance and is believed to work by selectively affecting the release of neurotransmitters and impeding impulse conduction across synapses. It is used IV for Status Epilepticus and as an adjunct for refractory seizure patients or when phenobarbital and/or potassium bromide is not well tolerated. It is being used more as a first line anticonvulsant, especially in young animals, and is well tolerated. Adverse effects may be transient and include sedation in dogs, and lethargy and decreased appetite in cats.