The following medications are truly matched to their major pharmacological groups EXCEPT

Correct Answer: D

Rationale: Fluoxetine belongs to the class of selective serotonin reuptake inhibitors (SSRIs), not tricyclic antidepressants.

Correct Answer: C

Rationale: Colchicine is effective in preventing amyloidosis in FMF.

Correct Answer: C

Rationale: Achondroplasia is a genetic disorder caused by a mutation in the FGFR3 gene, not a chromosomal abnormality. Prader-Willi syndrome, X-linked hydrocephalus, and Treacher Collins syndrome are chromosomal or genetic disorders.

Correct Answer: D

Rationale: Nasal congestion is better treated with decongestants rather than antihistamines.

Correct Answer: C

Rationale: Digitalis (digoxin) is contraindicated in hypertrophic cardiomyopathy as it can increase left ventricular outflow obstruction.