01 - General principles of pharmacology Flashcards

1
Q

Pharmacology is the study of both…

A

What drugs do to the body and what bodies do to drugs

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2
Q

Pharmocodynamics is effect of…

A

A drug on the body

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3
Q

Pharmocodynamics considers both (2)…

A

Molecular interactions and the influence of drug concentrations on the magnitude of response

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4
Q

Pharmacokinetics is the effect of…

A

The body on the drug (i.e. the journey of a drug through the body)

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5
Q

Pharmacokinetics can divided into 4 stages…

A
  1. Absorption
  2. Distribution
  3. Metabolism
  4. Excretion

(Acronym: ADME)

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6
Q

The pharmacokinetics of a drug, i.e. the ‘ADME’ stages ( differ / does not differ) between individuals

A

Differ

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7
Q

Antihistamine binds to histamine receptors, specifically…

A

H1 found in the skin and mucus membranes

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8
Q

Histamine H2 receptors are found:

a) throughout the body
b) in the skin and mucus membranes
c) in the stomach
d) in the skin, mucus membranes and stomach

A

c) in the stomach

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9
Q

Drug sources can be divided into either (2)…

A

Natural or synthetic

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10
Q

Most drugs in the past were of…

A

Natural origin

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11
Q

Modern drugs are largely of…

A

Synthetic origins

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12
Q

Synthetic drugs can be totally synthetic or they can be…

A

Identical or derived from natural compounds (such as insulin and codeine respectively)

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13
Q

Taxanes are an example of ( Natural / synthetic ) drugs…

A

Natural

Anti-cancer drug derived from the bark of the Yew Tree

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14
Q

A new class of synthetic drugs are…

A

Biologics

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15
Q

Biologics are drugs produced by or extracted from…

A

Biological sources

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16
Q

Shape and charge both effect drug interactions with…

A

Targets

17
Q

List bond types from weakest to strongest….

A
  1. van der Waals (temporary dipole-dipole interactions)
  2. hydrogen bonds (permanent dipole-dipole interactions)
  3. Ionic bonds (electron transfer)
  4. Covalent bonds (electron sharing) (Strongest)
18
Q

Potential targets of drug action are (4)…

A
  1. Receptors (Beta 2 adrenoreceptors -> salbutamol)
  2. Ion channels (Voltage gate -> Lidocaine)
  3. Carrier molecules (Proton pump -> Omeprazole)
  4. Enzymes (Cyclooxygenase -> Aspirin)

(acronym ‘RICE’, drugs target ‘RICE’)

19
Q

Physiochemical drugs don’t work by interacting with receptors. 3 examples are…

A
  1. Antidotes (prevents overdose)
  2. Antacids (neutralises acid)
  3. Laxatives (osmotic laxatives)