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Drugs that can be sold to the patient without the need for a doctor's prescription

OTC (over the counter) drugs
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Try These Similar MCQs

  • A CYP378A
  • B CYP4B2
  • C CYP3A4
  • D CYP256
Explanation: CYP3A4 is involved in the metabolism of majority of drugs and is also expressed extrahepatically. In fact, poor bioavailability of many drugs is attributed to the drug metabolism by CYP3A4 in gastrointestinal tract.
  • A Increases volume of distribution of the drug
  • B Generally makes the drug long acting
  • C Facilitates glomerular filtration of the drug
  • D Minimises drug interactions
  • A Sweat glands
  • B Ciliary muscle
  • C Iris muscles
  • D Splenic capsule
  • A Plasma protein binding
  • B Lipid solubility
  • C Degree of ionization
  • D Rate of tubular secretion
  • A Carrier is involved
  • B It is against concentration gradient
  • C Energy is required
  • D All of the above
Explanation: Facilitated diffusion differs from active transport in that it does not require energy source and it carries the transport in the direction of electrochemical gradient.
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