Paper II
2024 March (Supplementary) (2019 Scheme) · 100 marks · 180 min

Question

(

  • (a) Briefly describe d – pencillamine. ( 4 mark(s)
  • (b) Adverse effects of Corticosteroids. 4 mark(s)
Q78 marksShort Essays

Answer

a) D-Penicillamine A chelating agent. MOA: forms a stable, water-soluble complex with copper (and other heavy metals), promoting renal excretion. Uses: Wilson’s disease (primary indication), cystinuria, rheumatoid arthritis (older, second-line DMARD), lead poisoning (alternative agent). Adverse effects: hypersensitivity reactions, bone marrow suppression, nephrotoxicity, can itself induce autoimmune conditions (myasthenia gravis-like syndrome, SLE-like syndrome).

b) Adverse effects of corticosteroids

  • Cushingoid features, hyperglycemia, osteoporosis
  • Peptic ulceration, increased susceptibility to infection
  • Hypertension, growth retardation in children, cataract/glaucoma
  • Adrenal suppression — risk of adrenal crisis on abrupt withdrawal
  • Psychiatric disturbances, myopathy

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