Amlodipine is a long-acting calcium channel blocker widely used in the treatment of hypertension, chronic stable angina pectoris, and vasospastic angina pectoris. As a prescription drug, its standardized acquisition, rational use, and authenticity identification are directly related to therapeutic efficacy and patient safety.
Where to Purchase Amlodipine
Overseas Purchase
Patients may choose to consult and purchase amlodipine at hospital pharmacies or licensed pharmacies in countries/regions where the drug has been marketed.
Since drug prices may be affected by factors such as regional differences and exchange rate fluctuations, patients need to make a budget and plan in advance before purchasing.
Purchase via Medical Service Institutions
Patients may consult domestic overseas medical service institutions that cooperate with international pharmacies or pharmaceutical companies.
These institutions can usually provide legal import channels as well as professional consultation and guidance services.
Precautions for the Use of Amlodipine
Principle of Individualized Dosage
Hypertension treatment: The initial dose is 5 mg once daily, with a maximum dose of 10 mg once daily.
Angina pectoris treatment: The recommended dose is 5–10 mg once daily. For elderly patients and those with hepatic insufficiency, it is advisable to start with a low dose.
Pediatric patients (6–17 years old): The effective antihypertensive dose is 2.5–5 mg once daily.
Usage in Special Populations
Elderly patients: Reduced clearance leads to a 40%–60% increase in AUC, so a lower initial dose should be considered.
Patients with hepatic insufficiency: The elimination half-life is prolonged to 56 hours, and an initial dose of 2.5 mg is recommended.
Patients with renal insufficiency: No adjustment of the initial dose is required.
Drug Interactions
When used in combination with sildenafil, each drug exerts its antihypertensive effect independently.
Dose adjustment is required when co-administered with strong/moderate CYP3A inhibitors.
Identification of Authentic Amlodipine
Verification of Appearance Characteristics
2.5 mg: White, round, biconvex tablets, engraved with "ADP2.5" and "ODT".
5 mg: Light yellow, round, biconvex tablets, engraved with "ADP5" and "ODT".
10 mg: Pink, round, biconvex tablets, engraved with "ADP10" and "ODT".
Verification of Storage Conditions
Authentic products should be stored at 20°C–25°C, with short-term storage permitted at 15°C–30°C.
Protect from light and moisture, and package in USP standard light-resistant containers.
