This Q & A section previously known as "Question of the Week" is based on current issues and questions sent in by fellow health care professionals.

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Why are thiazide diuretics used more often than loop diuretics in the treatment of hypertension? Do thiazides have vasodilatory effects?

Does primary literature support the use of nifedipine for acute reductions on blood pressure?

Which calcium supplements have the highest risk of lead contamination, and is this a concern for patients?

Overview of cholesterol components and laboratory evaluation.

What are the prescription and non-prescription medications available to treat insomnia, and what are their dosages, adverse reactions and efficacy rates?

What are the comparative efficacies of alendronate and etidronate in the treatment of osteoporosis?

How do androgens cause alopecia?

What is the benefit of the new labeling for Betapace AF compared to standard Betapace? Are there any problems in converting between the two agents?

What is the dose of cimetidine (TagametÒ ) for the treatment of warts?

What are the different treatment options for treatment of premenstrual syndrome (PMS)?