False. Iodoquinol (also known as diiodohydroxyquin) is a halogenated hydroxyquinoline drug. It is primarily used as a luminal amebicide, meaning it is effective against Entamoeba histolytica trophozoites residing in the intestinal lumen. However, its spectrum of activity is broader. Iodoquinol is also an effective treatment for infection with Dientamoeba fragilis. Importantly, while not a first-line drug, it has also been used historically and can be effective against Giardia lamblia. Its mechanism is not fully understood but may involve chelation of essential metal ions or inhibition of parasite enzymes. Therefore, the statement that it has 'no activity' against Giardia is incorrect, though drugs like metronidazole or tinidazole are preferred due to better efficacy and tolerability.

Break down complex topics into smaller, manageable chunks for easier recall.

Zambia

• Joseph Soko – 101 pts

• Visual Pathway Lesions
• Positive and Negative Symptoms
• Hallucinations and Delusions
• Antipsychotic Medications
• Emergency: Environmental Emergencies