Felodipine Controlled Release Tablets and Felodipine Sustained Release Tablets in Healthy Subjects Under Fasting State Comparative Pharmacokinetic Study

Felodipine Controlled Release Tablets and Felodipine Modified-release Tablets in Healthy Subjects Under Fasting State: Single Dose, Randomized, Open, 2-treatment，2-period，Crossover Comparative Pharmacokinetic Study Main research objectives: Felodipine Controlled Release Tablets(strength: 5 mg) developed by Overseas Pharmaceuticals, Ltd., and Felodipine Modified-release Tablets (strength: 5 mg) produced by AstraZeneca AB., trade name: The pharmacokinetic parameters of the test preparation and the reference preparation in healthy subjects under fasting state were investigated and compared. Secondary research objectives: To observe the safety of test preparation and reference preparation in healthy subjects.