Repro pharm Flashcards

1
Q

Stages of the estrous cycle

A

Proestrus, estrus, metestrus/diestrus, anestrus

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2
Q

What are the 2 phases of the estrous cycle?

A

Follicular phase and Luteal phase

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3
Q

What produces Progesterone?

A

Corpus Luteum and placenta

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4
Q

GnRH analogs

A

Gonadotropin-releasing hormone

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5
Q

What are Gonadorelins used for?

A

Stimulation of FSH release and approved for short term use, they are also used to bring cattle into estrus at the same time

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6
Q

Trade names for gonadorelins

A

Cystolrelin, Factrel, fertagyl, ovacyst

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7
Q

These are less frequently used in vet med and produce their effects on the gonads (ovaries and testes)

A

Gonadotropins

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8
Q

What can progestins prevent?

A

An animal from coming into estrus

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9
Q

Used to either regulate the onset of heat for more effective breeding or used to delay the onset of estrus when time is better for the animal

A

Altrenogest (Regu-mate)

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10
Q

A feed additive, used in cattle, suppresses the estrous cycle or prolongs diestrus

A

Melengestrol acetate (MGA)

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11
Q

Slender silicon rubber implants, prolongs diestrus in cattle, continuous supply of progesterone for days

A

Controlled internal drug release (CIDR)

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12
Q

This drug is used in spayed female dogs to treat urinary incontinence

A

Estradiol tablets and Estriol (Incurin)

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13
Q

Banned in food animals, growth-promoting, or anabolic steroid

A

Diethylstilbestrol (DES)

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14
Q

What are some side effects of estrogens?

A

predispose the urethras to infection and pyometra
Suppress blood cell production resulting in an aplastic anemia

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15
Q

Drugs that are recognized by the stem -prost

A

Prostaglandins

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16
Q

Major role in sychronizing estrous cycles, lyse in the CL, causes progesterone levels to drop

A

Prostaglandins

17
Q

Dinoprost tromethamine

A

Lutalyse, Prostamate, In-Sync

18
Q

A prostaglandin that is easily absorbed through the skin and can easily produce CL lysis and bronchoconstriction in people

A

Cloprostenol (Estrumate)

19
Q

Mibolerone

A

Androgen hormone, similar to testosterone, interrupts the estrous cycle by inhibiting LH release

20
Q

Causes CL lysis, results in a decrease in progesterone level and subsequent fatal death

A

Prostaglandin F2

21
Q

Prostaglandin F2 approved for termination of pregnancy in mares

A

Dinoprost tromethamine

22
Q

Bind with and stimulate dopamine receptors, Prolactin inhibited, has a decline of progesterone necessary for monitoring pregnancy/terminating pregnancy

A

Dopamine agonists

23
Q

The corticosteroid that may induce abortion or premature parturition in mares or cattle. it mimics elevated levels of cortisol that happens at the beginning of a normal parturition

A

Dexmethasone

24
Q

What is the endogenous hormone released from the pituitary gland that causes contraction of they myometrium.

25
What could oxytocin be used for?
Dystocia, increase expulsion of placental materials, decrease uterine hemorrhage, milk let down