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Amlodipine Besylate

Description Mechanism of action Clinical Use side effects Interaction with Combination Drugs References
Amlodipine Besylate
Amlodipine Besylate structure
Chemical Name:
Amlodipine Besylate
Molecular Formula:
Formula Weight:
MOL File:

Amlodipine Besylate Properties

Melting point:
storage temp. 
Store at RT
DMSO: 20 mg/mL
Water Solubility 
Soluble in DMSO (20 mg/mL), water (10 mM), chloroform, ethanol (14 mg/mL), and methanol.
CAS DataBase Reference
111470-99-6(CAS DataBase Reference)
  • Risk and Safety Statements
Signal word  Warning
Hazard statements  H315-H319-H302-H335
Precautionary statements  P264-P270-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313-P501-P261-P280a-P304+P340-P305+P351+P338-P405-P501a-P301+P312+P330
Hazard Codes  Xn
Risk Statements  22-36/37/38-20/21/22
Safety Statements  26-36
WGK Germany  3
RTECS  US7967700
HS Code  29333990

Amlodipine Besylate price More Price(12)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich A5605 Amlodipine besylate ≥98% (HPLC) 111470-99-6 10mg $149 2020-08-18 Buy
Sigma-Aldrich Y0000049 Amlodipine besylate European Pharmacopoeia (EP) Reference Standard $190 2021-03-22 Buy
Sigma-Aldrich 1029501 Amlodipine besylate United States Pharmacopeia (USP) Reference Standard 111470-99-6 350mg $366 2021-03-22 Buy
TCI Chemical A2353 Amlodipine Besylate >98.0%(HPLC)(N) 111470-99-6 1g $64 2021-03-22 Buy
TCI Chemical A2353 Amlodipine Besylate >98.0%(HPLC)(N) 111470-99-6 5g $143 2021-03-22 Buy

Amlodipine Besylate Chemical Properties,Uses,Production


Amlodipine (generic name Amlodipine Besylate) is a class of calcium channel blockers. One of the amlodipine product on the market is Norvasc®.
Amlodipine functionalizes by the dilation of blood vessels and the improvement of blood flow, which lead to lowered blood pressure. Thereby, it is used to treat high bold pressure (hypertension). Lowering high blood pressure also reduces the risk of fatal and nonfatal cardiovascular events, primarily strokes and myocardial infarctions, and kidney problems. Amlodipine is also used to prevent certain types of chest pains (angina), which may help to increase the ability to exercise and decrease the frequency of angina attacks. Amlodipine can be used to treat coronary artery disease (CAD) including chronic stable angina, vasospastic angina, and angiographically documented CAD.

Mechanism of action

Amlodipine Besylate is a dihydropyridine calcium antagonist that prevents the transmembrane influx of calcium ions into the vascularsmooth and cardiacmuscle.It attaches to both dihydropyridine and non-dihydropyridine binding sites. The contractile manners of cardiac and vascular smooth muscle are dependent on the movement of extracellular calcium ions into these cells through specific ion channels. Amlodipine Besylate inhibits calcium ion influx across cell membranes selectively, with a superior effect on vascular smooth muscle cells than on cardiac muscle cells.

Clinical Use

Amlodipine besylate (ADB) is an important secondgeneration calcium channel blocker that belongs to the dihydropyridine family. It is used for the treatment of hypertension and angina. It is more selective for arterial vascular smooth muscle than for the cardiac tissue. It is approved for the treatment of hypertension and for variant and stable angina and may also be used for dilated cardiomyopathy. ADB has ameliorating effects on the plasma and myocardial catecholamine levels and significantly reduces calcium deposition. It has a negative inotropic effect on the heart that results in a decrease in heart work load.

side effects

1. Heart Failure
Calcium-channel blockers are normally avoided in patients with heart failure but ADB has not been found to have any adverse effects on morbidity or mortality in patients with severe heart failure. Therefore, it may be a suitable treatment option for angina pectoris or hypertension in such patients. However, a study on hypertensive patients found that ADB was less effective than the diuretic chlorthalidone in the prevention of heart failure.
2. Porphyria
Although there have been reports of the successful use of ADB in patients with porphyria, some studies have reported the occurrence of acute exacerbation in such patients.
3. Miscellaneous Adverse Effects
A number of other adverse events occurring in response to the regular use of ADB in 1091 patients with hypertension have been reported. Around 12% (128) patients stopped the intake of the drug due to the appearance of adverse effects. The most common reported adverse effects include ankle edema, flushing, headache, skin rash, and fatigue.

Interaction with Combination Drugs

The evaluation of pharmacokinetic interactions between Amlodipine Besylate(ADB), valsartan and hydrochlorothiazide revealed no clinically relevant interactions. Similarly, combination of ADB and olmesartan medoxomil is also known to have no impact on the pharmacokinetic profiles of individual drugs. Concomitant use of ADB and atorvastatin in patients with hypertension and dyslipidemia has shown to be well tolerated without any adverse pharmacodynamic interaction. The use of triple combination i.e. ADB + Olmesartan Medoxomil + hydrochlorothiazide has also demonstrated to be safe .




Anilodipine besylate is a new, once-daily, dihydropyridine calcium antagonist useful in the treatment of hypertension and angina.

Chemical Properties

White Crystalline Solid


Pfizer (USA)


A dihydropyridine calcium channel blocker. Used as an antianginal and antihypertensive


Angiotensin II inhibitor prodrug, antihypertensive


Amlodipine besylate is a L-type calcium channel blocker which may be used for the treatment of angina pectoris and hypertension. Amlodipine also inhibits growth of human epidermoid carcinoma A431 cells and has antireproductive effects in male rats.


ChEBI: The benzenesulfonate salt of amlodipine.

Manufacturing Process

2-[(2-Aminoethoxy)methyl]-4-(2-chlorophenyl)-3-ethoxycarbonyl-5- methoxycarbonyl-6-methyl-1,4-dihydropyridine (amlodipine) was prepared from 2-(phthalimidoaminoethoxy)acetoacetate, 2-chlorobenzaldehyde and methyl-3-aminocrotonate under refluxing in ethanol for 24 hours. The ketoester was prepared by the method of Troostwijk and Kellog (JCS Chem. Comm., 1977, p.932). Methyl-3-aminocrotonate can be prepared by known method. Phthalimido-amino-protecting group was removed using hydrazine hydrate in ethanol at the reflux temperature.
Although amlodipine is effective as the free base, in practice it is best administered form of a salt of a pharmaceutically acceptable acid.
Benzensulphonic salt of amlodipine was prepared as follows: Amlodipine base (65.6 g, 0.161 mols) was slurried in industrial methylated spirit (denatured alcohol, 326.4 ml) and cooled to 5°C. Benzensulphonic acid (26.2 g, 0.168 mols) was dissolved in industrial methylated spirit (65.6 ml) at 5°C and added to base. The resulting slurry was then granulated, filtered and washed with 2 volumes the same solvent (65.6 ml). The damp solid was slurred at 5°C for 1 hr in 327.6 ml industrial methylated spirit, filtered, washed with 2 volumes of the same solvent (65.6 ml) and dried under vacuum at 55°C for 24 hr. A yield of besylate salt of amlodipine 65 g.

brand name

Norvasc (Pfizer);Istin.

Therapeutic Function

Antianginal, Antihypertensive

Biological Activity

L-type calcium channel blocker that displays antihypertensive properties. Inhibits Ca 2+ -induced contractions in depolarized rat aorta (IC 50 = 1.9 nM) and displays vasoprotective effects in cardiovascular disease. Inhibits proliferation of human vascular smooth muscle cells and epidermoid carcinoma A431 cells (IC 50 = 25 μ M).

Veterinary Drugs and Treatments

Oral amlodipine appears to be a useful agent in the treatment of hypertension in cats and many consider it the drug of choice for this indication. In pharmacokinetic studies, amlodipine has decreased blood pressure in dogs with chronic renal disease, but its efficacy in treating hypertensive dogs has been disappointing.
Hypertension in cats is usually secondary to other diseases (often renal failure or cardiac causes such as thyrotoxic cardiomyopathy or primary hypertrophic cardiomyopathy, etc.) and is most often seen in middle-aged or geriatric cats. These animals often present with acute clinical signs such as blindness, seizures, collapse or paresis. A cat is generally considered hypertensive if systolic blood pressure is >160 mmHg. Early reports indicate that if antihypertensive therapy is begun acutely, some vision may be restored in about 50% of cases of blindness secondary to hypertension.

Amlodipine Besylate Preparation Products And Raw materials

Raw materials

Preparation Products

Amlodipine Besylate Suppliers

Global( 504)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Henan DaKen Chemical CO.,LTD.
+86-371-55531817 CHINA 21234 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693 CHINA 22607 55
Shanghai Time Chemicals CO., Ltd.
+8618017249410 +86-021-57951555
+86-021-57951555 CHINA 1365 55
Rixing Chemical CO.,LTD
- CHINA 229 55
020-81716319 CHINA 3077 55
Hubei XinRunde Chemical Co., Ltd.
02783214688 CHINA 567 55
+86 21 5161 9050/ 5187 7795
+86 21 5161 9052/ 5187 7796 CHINA 26711 60
Hefei TNJ Chemical Industry Co.,Ltd.
86-0551-65418684 18949823763
86-0551-65418684 China 2911 55
Shanghai Zheyan Biotech Co., Ltd.
18017610038 CHINA 3623 58
career henan chemical co
+86-371-86658258 CHINA 29983 58

View Lastest Price from Amlodipine Besylate manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2021-08-05 Amlodipine Besylate
2021-07-30 Amlodipine Besylate
US $10.50 / KG 1KG 99% 10 ton Hebei Crovell Biotech Co Ltd
2021-07-26 Amlodipine Besylate
US $0.00-0.00 / Kg/Drum 1KG 97%-102%;USP 1000KGS WUHAN FORTUNA CHEMICAL CO., LTD

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