How long will it take to reach a drug concentration of 5 mg/ml?

a) To calculate the time to reach a drug concentration of 5 mg/mL, use the formula: Time = (0.693 * Vd) / k.
b) To calculate the time to reach steady-state, use the formula: Time = 4 / k.
c) To calculate the loading dose needed to reach a drug concentration of 1.25 mg/mL immediately, use the formula: Loading Dose = Cp(initial) * Vd.
d) Consider consulting a pharmacist for further guidance on dosing and administration.