Profile On Olmesartan
Profile On Olmesartan
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PROFILE ON OLMESARTAN
1. PRODUCT ANALYSIS .............................................................................................................................. 4
Drug Class.................................................................................................................................................. 4
CAS Registry Number ................................................................................................................................ 4
Formula ..................................................................................................................................................... 4
Popular brand name ................................................................................................................................. 4
Pharmacokinetic data ............................................................................................................................... 4
Clinical uses ............................................................................................................................................... 5
Side effect ................................................................................................................................................. 5
Precautions ............................................................................................................................................... 5
Interactions ............................................................................................................................................... 6
Developments of ARB’s............................................................................................................................. 6
Comparative properties of ARB’s.............................................................................................................. 7
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4. WORLD DEMAND SUPPLY SCENARIO ................................................................................................. 22
Major International Manufacturers ........................................................................................................ 22
World market for Angiotensin II Receptor Blockers .............................................................................. 22
World market for Benicar (Daiichi Sankyo)............................................................................................. 22
Sales of olmesartan ................................................................................................................................. 23
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PRODUCT ANALYSIS
Drug Class Angiotensin receptor blockers (ARBs)
Formula C29H30N6O6
Olmesartan medoxomil is an angiotensin II receptor antagonist which has been used for the treatment
of high blood pressure.
It was developed by Sankyo in 1995, and is sold under the trade name Benicar and Olmecip (Cipla).
An ester prodrug, it is completely and rapidly hydrolyzed to the active acid form, olmesartan (RNH-6270)
The U.S. Food and Drug Administration (FDA) has determined that the benefits of Benicar continue to
outweigh its potential risks when used for the treatment of patients with high blood pressure according
to the drug label.
Pharmacokinetic data
Bioavailability 26%
Metabolism Hepatic (cannot be removed by hemodialysis)
Half-life 13 hours
Excretion Renal 40%, biliary 60%
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Clinical uses
Used to treat high blood pressure (hypertension). Lowering high blood pressure helps prevent strokes,
heart attacks, and kidney problems.
Olmesartan belongs to a class of drugs called angiotensin receptor blockers (ARBs). It works by relaxing
blood vessels so that blood can flow more easily.
Unlike many angiotensin II receptor blockers, olmesartan is not recommended as a treatment to delay
or prevent microalbuminuria in diabetic patients.
Side effect
To reduce the risk of dizziness and lightheadedness, get up slowly when rising from a sitting or lying
position.
It should be remembered that the doctor has prescribed this medication because he or she has judged
that the benefit is greater than the risk of side effects. Many people using this medication do not have
serious side effects.
Advised to tell the doctor right away if one has any serious side effects, including: fainting, symptoms of
a high potassium blood level (such as muscle weakness, slow/irregular heartbeat), unusual decrease in
the amount of urine, severe/persistent diarrhea...
Precautions
Before taking olmesartan, it is advised to tell the doctor or pharmacist if he is allergic to it; or if he has
any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or
other problems.
Before using this medication, advised to tell the doctor or pharmacist his medical history, especially of:
kidney disease, liver disease, severe loss of body water and minerals (dehydration).
This drug may make him dizzy. Not advised to drive, use machinery, or do any activity that requires
alertness until he/ she is sure he/ she can perform such activities safely. Limit alcoholic beverages.
This medication may increase the potassium levels. Before using potassium supplements or salt
substitutes that contain potassium, advised to consult the doctor.
This medication is not recommended for use during pregnancy due to the risk for harm to an unborn
baby.
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Interactions
Drug interactions may change how one’s medications work or increase your risk for serious side effects.
Some products that may interactct with this drug include: aliskiren, lithium, drugs that may increase the
level of potassium in the blood (such as ACE inhibitors including benazepril/lisinopril, birth control pills
containing drospirenone).
Developments of ARB’s
Valsartan,
Telmisarta
1986 Losartan 1990 Candesartan 1991 1995 Olmesartan
n
Irbesartan
6
Comparative properties of ARB’s
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ANTIHYPERTENSIVE MEDICATIONS
List of Antihypertensive Medications
• Alpha-Blockers, Antihypertensives
• Alpha2-Agonists, Central-Acting
• Aldosterone Antagonists, Selective
• Angiotensin II Receptor Blockers
• ACE (Angiotensin Converting Enzyme) Inhibitors
• Beta-blockers
• Calcium Channel Blockers
• Diuretics, Loop
• Diuretics, Potassium-Sparing
• Diuretics, Thiazide
• Peripheral Adrenergic Inhibitors
• Renin Inhibitors
• Vasodilators
• Antihypertensive Combinations
Angiotensin receptor blockers work by blocking the effects of hormone angiotensin II (type 1 receptor).
As a result, blood vessels dilate and blood pressure is reduced.
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Other antihypertensives
Alpha-Blockers (Antihypertensive)
Alpha blockers, also called alpha-adrenergic antagonists, dilate blood vessels by blocking postsynaptic
alpha1-adrenergic receptors. Alpha blockers are generally not recommended as initial therapy.
Alpha-2 agonists work by stimulating alpha-2 receptors and decreasing sympathetic activity, which leads
to decreased blood pressure and heart rate.
ACE inhibitors remain the initial treatment of choice for hypertension. This class of drugs blocks the
conversion of angiotensin I to angiotensin II by inhibiting angiotensin-converting enzyme (ACE), thus
preventing constriction of blood vessels.
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Perindopril Aceon
Quinapril Accupril
Ramipril Altace
Trandolapril Mavik
Beta-blockers
Beta-blockers produce antihypertensive action by reducing heart rate and cardiac output. Currently
beta-blockers are not recommended as first-line treatment due to the risk of stroke and new-onset of
type 2 diabetes when compared to other medications4
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Calcium Channel Blockers
Calcium channel blockers decrease the entry of calcium into the cells of the heart and blood vessels. By
blocking the entry of calcium, this class of drugs reduces heart rate and contractility and dilates arteries.
Diuretics, Loop
Loop diuretics inhibit the sodium-potassium-chloride cotransporter in the thick ascending limb of the
loop of Henle. Loop diuretics promote increased water loss and sodium loss.
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Diuretics, Potassium-Sparing
Potassium-sparing diuretics work by leaving more potassium in the blood, as a result more sodium and
water are excreted in the urine. Potassium-sparing diuretics are weak antihypertensives when used
alone.
Diuretics, Thiazide
Thiazide diuretics reduce sodium absorption from the distal tubule segment of the kidney. Thiazide
diuretics are known to worsen insulin sensitivity and elevate serum total cholesterol levels4.
These medications are rarely used unless other medications don't help.
Renin Inhibitors
Renin inhibitors act by inhibiting the activity of renin, the enzyme responsible for angiotensin II levels.
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Vasodilators
Vasodilators work by dilating arterioles. However, vasodilatation by itself causes increased sympathetic
outflow to the heart, leading to tachycardia and increased contraction.
Antihypertensive Combinations
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Calcium channel blockers and Angiotensin II receptor antagonist
Amlodipine/Olmesartan Azor
Amlodipine/Olmesartan/HCTZ Tribenzor
Amlodipine/Telmisartan Twynsta
Amlodipine/Valsartan Exforge
Amlodipine/Valsartan/HCTZ Exforge HCT
Centrally acting drugs and Diuretics
Methyldopa/HCTZ Aldoril
Reserpine/Chlorothiazide Diupres
Reserpine/HCTZ Hydropres
Diuretic combinations
Amiloride/HCTZ Moduretic
Spironolactone/HCTZ Aldactone
Triamterene/HCTZ Dyazide, Maxzide
Clonidine/Chlorthalidone Combipres
Hydralazine/HCTZ Apresazide
Methyldopa/HCTZ Aldoril
Prazosin/Polythiazide Minizide
Other combinations
Amlodipine/Atorvastatin Caduet
Amlodipine/Aliskiren Tekamlo
Amlodipine/Aliskiren/HCTZ Amturnide
Aliskiren/HCTZ Tekturna HCT
Aliskiren/Valsartan Valturna
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Comparative pharmacokinetics of ARBs
15
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Mechanisms of antagonism
The mechanisms of antagonism also vary between the ARBs: some show insurmountable antagonism
(e.g. candesartan) and others show surmountable antagonism (e.g. losartan). Insurmountable
antagonism is characterised by long-lasting inhibition, slow dissociation, irreversible binding,
conformational changes and potentially internalisation, whereas surmountable antagonism is
characterised by short-lasting inhibition and fast, reversible binding.
Losartan only binds at two angiotensin II type 1 receptor (AT1) sites, compared to candesartan which
shows high binding affinity at four sites.2 It is suggested that the tight binding and slow dissociation of
candesartan from the AT1 receptor may account for the magnitude of the antihypertensive efficacy of
candesartan and for its long duration of action, inducing long-lasting suppression of the RAAS.
Losartan: The only medicine in its class proven to lower the chance of stroke.
Only ARB that has been shown to reduce serum uric acid levels.
Only ARB approved by the FDA for treating nephropathy in patients withT2DM
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INDIAN DEMAND SUPPLY SCENARIO
Major Indian suppliers
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Indian formulators of Olmesartan
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Intra Labs OLMEFAST-H Olmesartan
Invision SOLMIREST Olmesartan
Invision SOLMIREST-H Olmesartan
Johnlee (Vista) OMTEN Olmesartan
Johnlee (Vista) ] OMTEN Olmesartan
Johnlee(Vista) OMTEN-AH Olmesartan
Johnlee(Vista) OMTEN-AM Olmesartan
Johnlee(Vista) OMTEN-H Olmesartan
Lifecare OLMELIFE Olmesartan
Lifecare OLMELIFE-H Olmesartan
Lupin (Pinnacle) PINOM Olmesartan
Lupin (Pinnacle) PINOM-A Olmesartan
Lupin (Pinnacle) PINOM-H Olmesartan
Lupin (Pinnacle) PINOM-M Olmesartan
Macleods AMLOVAS-OL Amlodipine
+Olmesartan
Macleods NEXOVAS-O Cilnidipine + Olmesartan
Medoxomil
Macleods OLMESAR Olmesartan
Macleods OLMESAR-A Amlodipine + Olmesartan
Macleods OLMESAR-AV Olmesartan
Macleods OLMESAR-CH Olmesartan
Macleods OLMESAR-H Olmesartan
Macleods OLMESAR-M Olmesartan
Macleods TRINEXOVAS Chlortalidone+Cilnidipine
Olmesartan
Macleods TRIOLMESAR Olmesartan
Mankind OLMETIME-AM Olmesartan
Mankind OLMETIME-AMH Olmesartan
Mankind OLMETIME-H Olmesartan
Merck OLMIGHTY Olmesartan
Merck OLMIGHTY-AM Olmesartan
Merck OLMIGHTY-H Olmesartan
Micro Carsyon OLMAT Olmesartan
Micro Carsyon OLMAT-AM Olmesartan
Micro Carsyon OLMAT-AMH Olmesartan
Micro Carsyon OLMAT-H Olmesartan
Olcare(Cardium) O-RELATE Olmesartan
Olcare(Cardium) O-RELATE-H Olmesartan
Pax Healthcare XOLMI H Olmesartan
Race Pharma ROLMEX-AM Olmesartan
Ranbaxy OLVANCE Olmesartan
Ranbaxy OLVANCE-H Olmesartan
Ranbaxy TRIOLVANCE Olmesartan
Ranbaxy (Cardiovasculars) OL-VAMLO - Olmesartan
Shrrishti HC OLEMAR Olmesartan
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Shrrishti HC OLEMAR-AM Olmesartan
Sun OLMEZEST-AM Olmesartan
Sun OLMEZEST-BETA Olmesartan
Sun OLMEZEST-CH Olmesartan
Sun OLMEZEST-H Olmesartan
Sun TRIOLMEZEST Olmesartan
Sun (Azura) OLMEZEST Olmesartan
Torrent (Delta) OLMETOR-H Olmesartan
Torrent (Psycan) OLMETOR Olmesartan
Unichem OLSAR Olmesartan
Unichem OLSAR-A Olmesartan
Unichem OLSAR-AH Olmesartan
Unichem OLSAR-H Olmesartan
Unichem OLSAR-M TAB Olmesartan
Unichem OLSAR-M Olmesartan
USV OLMETRACK Olmesartan
USV OLMETRACK-AM Olmesartan
USV OLMETRACK-CT Olmesartan
USV OLMETRACK-H Olmesartan
Wonder (Xtra) OLMEDER Olmesartan
World Wide OLMIWALL Olmesartan
World Wide OLMIWALL-H Olmesartan
Zydus (CND) OLMY-A Amlodipine+ Olmesartan
Zydus (CND) OLMY-H Olmesartan
Zydus (CND) OLMY-R Ramipril+ Olmesartan
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WORLD DEMAND SUPPLY SCENARIO
Major International Manufacturers
3.5
2.5
1.5
0.5
0
2011 2012 2012 2013 2014
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Business development activities by Daiichi Sankyo
Sales of olmesartan
1200
800
US (USD Mn)
600
EU (EUR Mn)
400
200
ASCA etc (JPY Bn)
0
2009 2010 2011 2012 2013 2014
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PATENT SCENARIO
Patent expiry on ‘Benicar’ –(Daiichi Sankyo) October 2016
Mylan Pharmaceuticals ($MYL) has won the right to sell the drug exclusively for the first 180 days after
the patent expires on the blockbuster.
Still, both companies may face competition sooner than they thought. In November 2012, Apotex
petitioned a U.S. court to rule that its Benicar generic wouldn't infringe patent rights. A finding of
noninfringement, Apotex said, would let it compete with Mylan sooner. But Apotex has yet to get its
own drug approved by the FDA.
Benicar's patent doesn't expire till 2016, but it's already feeling the pressure from generic drug makers
that think they can push their copies to market sooner.
100
90
80
70
60
50
40
30
20
10
0
Daiichi Sankyo Teva Pharma Lek Pharma Ranbaxy Cipla Daewong Hanall Pharma
24
Yearwise patent
200
180
160
140
120
100
80
60
40
20
0
1995-1999 2000-2004 2005-2009 2010-2015
Regionwise patents
200
150
100
50
0
US Europe JPN WIPO Other global regions
25
Patent based on formulation / Process for API
34%
Formulation of API
66%
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