Amlodipine
Amlodipine

0.31
Relaxes vascular walls to improve systemic blood circulation for Heart and Blood Pressure by inhibiting the transmembrane influx of calcium ions into smooth muscle cells.


Ingredient
Availability
In Stock
Delivery Time
Airmail (14-21 days) | Trackable (5-9 days)
Shipped in a discreet, unmarked envelope with all required documents enclosed.

Product Sheet

Active Ingredient(s)
Amlodipine
Reference Brand
Norvasc
Product Origin
Generic Product
Reference Manufacturer
Pfizer
Product Form
Tablet
Regulatory Classification
Rx
Primary Category
Heart & Blood Pressure
Product Category
Calcium channel blocker
Pharmacological Class
Dihydropyridine
Clinical Indications
Hypertension, Angina
Manufacturer Description
Utilized to alleviate chest pain and manage high blood pressure by helping to mitigate the force of arterial contraction.
Mechanism of Action
Amlodipine inhibits the influx of calcium ions into vascular smooth muscle and cardiac muscle. This causes relaxation of the arterial smooth muscle, leading to vasodilation and reduced peripheral resistance.
Route of Administration
Oral
Onset Time
6–12 hours
Duration
24 hours
Contraindications
Severe hypotension
Severe Adverse Events
Angina worsening, Arrhythmia
Common Side Effects
Edema, Flushing
Uncommon Side Effects
Dizziness, Fatigue
Drug Interactions
Simvastatin, Cyclosporine
Pregnancy Safety Warnings
Use with caution.
Age Restrictions
Adults.
Storage Guidelines
Store below 30°C.
Related Products
Felodipine, Nifedipine

Amlodipine FAQ

What is pharmacokinetic bioequivalence?

In the context of generic amlodipine, bioequivalence means that the generic formulation delivers the same amount of the active ingredient into the bloodstream at a rate statistically consistent with the original innovator documentation. This ensures that the pharmacological target-the L-type calcium channel-is engaged in a manner consistent with established clinical data.

Why are generic compounds often more accessible?

The availability of generic formulations relies on multi-source manufacturing and large-scale synthesis capabilities. By utilizing established chemical processes across a wide network of WHO-GMP compliant facilities, the production of these compounds leverages supply diversity, which supports broader availability within the global logistics framework.

Why does the supply network involve multiple manufacturers?

Logistical frameworks rely on a broad base of manufacturers to ensure consistent availability of standard compounds. This decentralized supply model prevents reliance on a single production source, assisting in the stability of individual logistics chains.

Does the appearance of the medication vary between batches?

Variation in tablet color, shape, or markings is common among different WHO-GMP compliant facilities. These physical aspects of the formulation do not alter the pharmacological profile of the active ingredient.

What are the prerequisites for chemical stability?

Chemical stability requires the preservation of the molecular integrity of amlodipine. Exposure to extreme temperatures, light, or high humidity can degrade the compound, potentially altering its therapeutic efficacy. Strict adherence to the provided storage parameters is necessary to maintain the integrity of the product.

What are the personal-use import rules in Singapore?

Under Health Sciences Authority (HSA) guidelines, individuals may generally import a small quantity of non-controlled medications from an international source for personal use, provided the quantity does not exceed a three-month supply. You must verify the current status of your specific medication and the latest HSA regulations directly with the Authority, as import rules are subject to update.

Is amlodipine typically included in drug testing panels?

Routine workplace or forensic drug screening panels typically target substances of abuse and do not typically include antihypertensive compounds like amlodipine. Employers and jurisdictions determine the composition of testing panels, and such testing is not standard for this medication class.

Clinical Identity and Amlodipine Overview

Amlodipine serves as a standard focus in the management of systemic vascular resistance and elevated blood pressure. Available as a tablet formulation, this compound is supplied in standard concentrations of 2.5mg, 5mg, and 10mg. Clinical use originates from its classification as a long-acting dihydropyridine calcium channel blocker (a specific class of molecules that inhibit the influx of calcium ions into muscle cells).

The utility of this agent lies in its ability to modulate the tone of peripheral and coronary vascular smooth muscle. All decisions regarding dosing, frequency, duration, and escalation remain the exclusive responsibility of a supervising physician.

Biological Mechanism of Action

Amlodipine targets the L-type calcium channels situated within the cell membranes of vascular smooth muscle and myocardial (heart muscle) tissue. By binding to these channels, the compound inhibits the transmembrane influx of calcium ions into the intracellular space.

Calcium ions are essential for the excitation-contraction coupling (the process where an electrical stimulus is translated into a mechanical contraction) of smooth muscle cells. The reduction of intracellular calcium availability hinders the activation of the contractile apparatus, leading to smooth muscle relaxation. In the peripheral vasculature, this action decreases arterial resistance, which contributes to the reduction of systemic blood pressure. In the coronary arteries, the resulting vasodilation (the widening of blood vessels) improves oxygen delivery to myocardial tissue.

Regulatory Recognition and Clinical Indications

The Health Sciences Authority (HSA) of Singapore recognizes amlodipine as a pharmacological agent for the management of clinical conditions associated with vascular constriction. According to official HSA documentation and pharmacopoeial monographs, this compound is indicated for the treatment of hypertension (high blood pressure). It is also documented for the treatment of chronic stable angina pectoris and confirmed vasospastic angina (Prinzmetal’s or variant angina).

Absolute Contraindications and Safety Warnings

Hypersensitivity to Dihydropyridines

Individuals with a documented allergy or severe hypersensitivity to amlodipine, or to other drugs within the dihydropyridine calcium channel blocker class, must not utilize this medication. A physician must evaluate all historical reactions prior to the initiation of therapy.

Severe Hepatic Impairment

The liver serves as the primary site for the metabolism of amlodipine. In cases of significant hepatic insufficiency (diminished liver function), the half-life of the compound may be extended. Clinical assessment by a physician is necessary to determine if usage is appropriate under these conditions.

Severe Hypotension

Patients presenting with current, unmonitored severe hypotension (critically low blood pressure) are generally contraindicated from using this agent. The mechanism of peripheral vasodilation may exacerbate existing states of circulatory collapse. Consult a supervising doctor for clinical evaluation.

Disclaimer

This information is provided for educational purposes and does not constitute medical advice, diagnosis, or treatment recommendations. Always consult a licensed physician and review the full package insert before beginning any pharmacological regimen.

Adverse Events and Drug Interactions

Common Reactions

  • Peripheral edema (fluid accumulation in the lower extremities)
  • Fatigue
  • Somnolence (a state of strong desire for sleep)
  • Abdominal pain
  • Nausea

Less Common Reactions

  • Palpitations (the clinical term for an awareness of heart rhythm)
  • Dizziness
  • Muscle cramps
  • Gastrointestinal disturbances
  • Skin rash

Serious Events

  • Significant hypotension
  • Increased frequency or duration of angina during initial therapy
  • Hepatic enzyme elevations
  • Arrhythmia (an irregular heartbeat)

Drug Interactions

  • CYP3A4 inhibitors (substances that hinder the activity of the liver enzyme responsible for metabolizing amlodipine, potentially increasing plasma concentrations)
  • Simvastatin (a compound that may show altered systemic exposure when used concurrently)
  • Tacrolimus (a compound where systemic levels may be impacted by co-administration)

Administration Guidelines

Amlodipine is prepared for oral administration. The tablet should be ingested with a sufficient volume of water. The absorption of the active ingredient occurs regardless of food intake. All clinical decisions regarding the dosage, the frequency of ingestion, the duration of the cycle, and any necessary modifications based on physiological response are determined exclusively by a supervising physician.

Storage and Handling

Store tablets in a cool, dry environment, ensuring the temperature remains consistent with room temperature requirements (typically between 15°C and 30°C). Keep the medication away from moisture, direct light, and heat sources to prevent degradation of the compound. Unused or expired medication should be disposed of through local pharmaceutical waste services in accordance with Singapore regulations.

Supply Access and Platform Role

This platform serves as an international logistics offer intermediary, facilitating access to WHO-GMP compliant generic formulations produced by diverse synthesis facilities. The platform maintains no role in prescribing, medical assessment, or manufacturing. Confirmed orders are redirected to an external third-party payment processor.

Medication-Specific Glossary

L-type calcium channel
A transmembrane protein complex that allows for the flow of calcium ions into muscle cells to initiate contraction. Its inhibition is the primary mechanism of action for amlodipine.
Vasospastic angina
A clinical condition characterized by temporary spasms of the coronary arteries, which are targeted by the vasodilatory action of dihydropyridines.
Peripheral edema
The clinical manifestation of fluid retention in the interstitial space, commonly occurring in the extremities as a physiological response to arteriolar (small artery) dilation.
CYP3A4
An enzyme of the cytochrome P450 system located in the liver that facilitates the oxidative metabolism of various medications, including amlodipine.

The information contained herein is for informational purposes only and is not intended as medical advice. This platform functions solely as a logistics offer intermediary and is not a pharmacy, nor does it issue prescriptions. No clinical advice, titration guidance, or health management suggestions are provided. In accordance with Health Sciences Authority (HSA) regulations, compliance with personal-use import rules is the user's responsibility. Always seek the counsel of a medical doctor licensed to practice in Singapore regarding your health regimen and review all provided documentation before usage.

Information associated with Amlodipine is curated and periodically reviewed using established medical references and prescribing guidelines. Content is intended for general awareness and should be verified with a licensed healthcare professional before use.
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