The administration time of Iprenone (trade name Inspra) is not affected by food, and it can be taken before or after meals. Its absorption rate and bioavailability are not affected by eating. The drug reaches its peak plasma concentration approximately 1.5-2 hours after oral administration, with an absolute bioavailability of 69%. It can reach steady-state blood drug concentration after continuous administration for 2 days.

1. Instructions for taking time

(1) Food impact: Clinical studies have shown that food has no significant effect on the absorption of eplerenone, and can be taken on an empty stomach or after a meal.

(2) Best time: Patients can choose a fixed time to take medication according to their medication habits. It is recommended to take medication at the same time every day to maintain stable blood drug concentration.

2 Pharmacokinetic characteristics

(1) Absorption characteristics: Peak concentration is reached within 1.5-2 hours after oral administration, and linear pharmacokinetic characteristics are observed within the dose range of 25-100mg.

(2) Steady state time: After continuous administration for about 2 days, the steady-state blood drug concentration can be reached, with a half-life of 3-6 hours.

3 Precautions

(1) Drug interactions: It is necessary to avoid using strong CYP3A4 inhibitors (such as ketoconazole) in combination, as it may significantly increase blood drug concentrations.

(2) Special population: Patients with liver dysfunction need to adjust their dosage, but there is no need to change their medication regimen due to eating habits.