Theophylline,a Methylxanthine Like Caffeine,is Used to Treat Asthma

question 57

Essay

Theophylline,a methylxanthine like caffeine,is used to treat asthma.Explain the mechanism by which a methylxanthine can alleviate asthma symptoms resulting from bronchial constriction.

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Definitions:

Discount Rate

The interest rate used to discount future cash flows to their present value, often used in investment and financial analysis.

Present Value

The current worth of a future sum of money or stream of cash flows given a specific rate of return.

Discount Rate

The discount rate is the interest rate used to determine the present value of future cash flows in discounted cash flow analysis.

Discount Periods

Time frames during which a payer can make payment less than the nominal amount due before a specified due date to receive a discount.