amlor* - الهيئة العامة للغذاء والدواء · • use in renal failure ......

1
E E LO T""" C') _L 135 mm AMLOR* (Amlodipine) 1. TRADE NAME OF THE MEDICINAL PRODUCT AMLOR5 mg AMLOR 10 mg amlodipine 2. QUALITATIVE AND QUANTITATIVE COMPOSITION AMLOR5 mg Amlodipi ne (besylale) .... .... .... .. . ... . .. .. 6.944 mg equivalent to amlodipine ...... 5.000 mg Microcrystalline cellulose ... . 72. 556 mg Dried maize starch .... . .. ... .... ...... ... .. 20. 000 mg Magnesium stearate ........ . ..... ... ...... . 0.500 mg for one c apsule n' 3 of 100 mg AMLOR 10mg Amlodipi ne (besylate) ... .. .... ... ....... ... 13, 889 mg equivalent to amlodipine .. .. 10, 000 mg Microcrystalline cellulose . ......... 65, 611 mg Dried maize starch .. .. . .. ..... .. ... .. .. .. .. 20. 000 mg Magnesium ste arate . .. .. ... .. . .... ..... ....0. 500 mg for one capsule n' 3 of 100 mg composITion of the capsule coat: body: gelatin, titanium dioxide cap : gelatin, titanium dioxide, y ellow 3. PHARMACEUTICAL FORM Amlor 5mg: Capsule (yellow / white) : 30 cap- sules. Amlor 10mg: Capsule (grey): 30 capsules. 4. CLINICAL PARTICULARS 4.1 Therapeutic indications - Prev entive treatment of angina : stable angina and sponta- neous angina (including Prinz metal 's angina) - Hypertension 4.2 Poso logy and method of administration • Hypertension : The starting dose is 1 capsule (5mg) once a day, which may be increased to a s ingle daily dose of 10 mg, depending on the treatment response. Angina Pectosis : The starting dose is 1 capsule (5mg) once aday, which may be increased to a single da il y dose of 10 mg, depending on the treatment response. The maximum dail y dose is 10 mg. Except in case of recent myocardi al infraction, aml o dipine can be admini s tered whatev er the degree of left v entricular heart failure. Use in the Elderly Amlodipine, used at similar doses in elderl y or younger patients, is equally well tolerated . Use in Renal Failure The treatment can be initiated at the usual recomended poso- logy. Changes in amlodipine plasma concentrations are not correlated with degree of renal impairment. Amlodipine is not dialyzable. No dose adjustment of amlodi pine is required upon concomi- ta nt administration of thiazide diuretics, beta- blockers or angiotensin-conv erting enzyme inhibitors. 4.3 Contra-indications This medicine must nev er be taken in case of hypersensiti v ity to dihydropy ridines. Thi s medicine is generall y unadvised in case of combination with dantrolene (see section 4.5. " Interaction w ith other medicines » ). 4.4 Special w arnings and special precautions for use Special w arnings : Efficacy and safety has not been studied in children. It is unadvisa ble to use amlodipine in children. When clinical signs (asthenia, anorexia, persistant nausea), it is recommanded to perform li v er enzymes assays. If increa- sed and especially in case of jaundi ce, the treatment must be stopped. Precaution for use : - Use in patients with impa ired hepatic function : Amlodipine half-life is prolonged in patients with impaired liver function (see. Section 5.2 " Pha rmacokinetic prope rties») . Dosage recommandations have not been establi s hed, so a mlodipine should be administered with caution in these patents. - Pregnancy and lactation: (see. section 4.6). 4.5 Interaction with other medicines and other forms of inter- action Unadvisable combination (care measure): - Dantrolene (infusion) : in animals, cases of fatal v entricular fibrillati o ns are consistentl y obse rved when verapamil a nd dantrolene are administered by IV route . Thus , the combina- tion of a calcium-channel blocker with dantrolene is potential- ly dangerous. However , a few patients have received the com- bination nifedipine and dantrolene without any trouble. Combination needing precaution: - Alpha·1 blockers (alfuzos in , prazosin) : increase in the hypotensi ve effect. Risk of sev ere orthos tatic hypotension. Clinical monitoring. Research of any orthostatic hy potension in the hours following the alpha-l blocker drug administration (particularly at the beginning of the treatment). - Baclofene : increase in the anti-hypertensi ve effect. Monito- ring of the arterial pressure and posological adapta tion olthe anti-hy perten sive drug if necessa ry. - Rifampicine : described for v erapamil, diltiazem and nifedi- pin . Decrease of the plasma lev els of the calcium channel blocker due to an increase of its hepatic metabolism. Clinical monitoring and , eventually ad justment olthe dose of the cal- cium channel blocker during the treatment with ri fampi c ine and after its withdraw al. - Itraconazole : extrapolated from nifedipine, felodipine and isradipine. Increased risk of oedema due to a decrease of the dihydropyridine hepatic metabolism. Clinical monitoring and, ev entuall y adjustment of the dose of the dihydropyridine the treatment with itraconazole and after its withdraw al. Combination to be ta ken into account: - Beta-blockers: hypotension, heart failure in patients with l atent or un-controlled heart failure (in vitro negative inotropic e ffect of the dihydropyridines, more or less marked depen- ding on the products and susceptible to add to the negative i notropic effec ts of beta-blockers). The presence of a beta- b locker treatment can moreover minimise the reflex sympa- thic reaction set into action in case of excessive hemodyna- m ic reperc ussion. - Imipramine antidepressants (tricyclics): antihy pertensi ve e ffect and risk of orthostatic hypotension i ncreased (additive effect) . - Corticosteroid, tetracosactid (general route): decrease in the antihyperten s ive effect (hy drosodic retention of the corti- c osteroids) . - Neuroleptics : antihypertensive effect and risk of orthostatic hypotension increased (additive effect). Furthermore, amlodipine does not modify the plasma levels or the renal clearance of digoxine in the healthy volunteers. 4.6 Pregnancy and lactation Pregnancy: Animal studies did not show any teratogenic effects. Without teratogenic effect in animal , malformations in humans are not expected. To date, any substances respons ible for malforma- tions in humans have effectiv ely been found to be teratogenic in animals in properly conducted studies on both species. Presentl y, there is no relevant or enough data to assess an ev entual malformation or foetotoxic effect of amlodipine when administered during pregnancy. Con s equently, as a p recaution mesure, it is preferable not to use amlodipine during pregnancy. Lactation: There is no data regarding the excretion of amlodipine in b reast milk. However, as with others dihydropyridines, the quantities f ound in breast milk are low, and no undesirable effects were n otified on the basis of isolated cases. As a precaution mesure, it is advisable to av oid if possible, the administration of thi s medicine to the breas t-feeding woman. 4.7 Effects on ability to drive and use machines: At the beginning of the treatment , a special caution will have to be observed by drivers or machines users, due to the ri sk of giddiness (see section 4.8 « Undesirable effects » ). 4.8 Undesirable effects - Adverse reactions occurring most commonly are linked to the vasodilator action of the drug. These essentially involve h eadache, redness or feeling of heat of the face. These side effects occur most often during the initial w eeks oltreatment and generally lessen as it continues. In common with other dihydropyridines an ankle and/or facial edema could occur. This is more frequent at high doses. - There have been rarer reports of: - Cardiac effects: tachy cardia, palpitations, syncope. . Cutaneomucous effects : alopecia, increas ed sweating, aller- gic reaction including pruritus, rash and angioedema. As with o ther dihydropyridines, slight gingival enlargement has been r eported in patients w ith marked gingiviti s/parodontitis. Such e nlargement can be avoided or disappear by careful oral hygiene. - Digesti ve effects : abdominal pain, dyspepsia, dysgueusia, appetite loss, nausea, diarrhoea, constipation, dry mouth. - Neuromuscular effects : muscular cramps, my algia, arthral- gia. - Liv er effects: Hepatitis, jaundice and hepatic enzyme eleva- tions have been reported very rarel y (mostly consistent with c holes tasis) with a few cases severe enough to require hos- p italization . They are recov ered at the treatment withdraw al. - Lungs effects: dyspnea. . Genito-urinary effects: pollakiuria, impotence as reported w ith other anti-hypertensive drugs, gynecomastia. - Neuropsychic effects : asthenia, giddiness, sleeping disor- ders, paresthesia, trembling , visual disturbances, de pressi ve disorders. - General effect: malaise. - Hematopoietic effect : thrombocytopenia. - Vascular effect: v asculitis. - As with other calcium-channel blocke rs , the following ev ents have been rar ely reported : anginal pain , myocardial i nfarction , arrythmiaThey can be linked tothe pathology pre- existent to the treatment , and must lead to discuss the conti- nuation of the treatment. 4.9 Overdose Massive overdose could cause notable peripheral vasodila- tion leading to marked and probably prolonged systemic hypotension. Any hy potension following acute poisoning r equires, monitoring in a cardiology intens ive unit. A v aso- constrictor could be used to restore v ascular tone and blood p ressure. Amlodipine is not dialysable. 5. PHARMACOLOGICAL PROPERTIES 5.1 Pharmacodynamic properties SELECTIVE CALCIUM INHIBITOR WITH VASCULAR EFFECT Amlodipine is a calcium antagonist belonging to the dihydro- p yridines group wich acts on the calcium channel binding s ites of both 1-4 dihydropyridine and diltiazem. It causes pro- l onged inhibition of the entry of calcium via slow calcium c hannels into smooth muscle and myoca rdial cells. As with the other dihydropyridines , amlodipine has diuretic and n atriuretic properties in the animal. The mechanism of its antihypertensi ve action is linked to a direct relaxant effect on v ascular smooth muscle. Single daily administr ation in hypertensive patients enables a s ignificant lowering of blood pressure lev els in supine or standing position throughout the 24-hour period, without any concomitant acceleration in heart rate. The progressi ve action of amlodipine avoids episodes of hypotension. Amlodipine decreases total peripheral resi stance (post-load) w ithout causing reflex tachycardia. This is accompanied by a reduction in myocardial energy consumption and oxygen requirements. It causes v asodilatation of the coronary arte- ries and arterioles, thus increasing myocardial oxygen supply. L I 135 mm Administration of amlodipine in angina patients increas es ex ercice tolerance time to angina onset, ST segment depres- sion and reduces both the frequency of angina attacks and nitroglycerin consumption. As with the other calcium antagonists, amlodipine is metabo- lically neutral and has no effect on plasma lipid lev els. It can be used in patients with diabetes or gout. In hypertensive renal transplant reci pients treated with cy clo- sporine, amlod ipine at the usual doses decreases blood pres- sure, increases renal perfusion and glomerular filtration rate and lowers peripheral v ascular resistance. The long term consequences of these modifications on the graft 's fonction are not assessed. 5.2 Pharmacokinetic properties After oral admi nistration at therapeutic doses, amlodipine is completely absorbed. Amlodipine (absolute) biov ailability has been estimated to be between 64 and 80 %. Peak plasma conce ntration occurs late, approx imatel y 6 to 12 hours after dosing. The v olume of distribution is 21 I/kg. The terminal elimination half-life is 35 to 50 hours and enables single daily administration Steady state concentrations are reached after 7 to 8 days of administration. Amlodipine is almost entirel y metabolised to inactive metabo- lites. Ten percent of the parent substance and 60% of meta- bolites are excreted in urine. In v itro s tudies have shown that circulating amlodipine is 97.5 % bound to plasma proteins. Plasma concentrations of amlodipine in the elderl y are higher than in younger patients this being unaccompanied by clinical : 1.Hi A _I .... ..... -u.. ... ui)J,..\SJIJ...4> ... ... 1.,.>11 vo J..,lI:i .ll<> w..!..,..,... .>.>..» ..... ,,,+)1 W. t)l!'II";'V),1 c!"" JWI ..... w; .... 1..;.> ... 'Il J c"l.l[,..;...,.n ... . .:".J\'-:-'i-!" ...-n ...... .>?ytliiJ!Juli...>fo.!".J ..... ... . ..,.sl\u\..Vll ,lii;,]I .... ....... ...... ...... ifo.. ...... ...,..ruI.:..I....>=-'":-'I.;J...:.oI .>l1.; ..... ...... .... 4l,!!.l...o.)1 1_. .... __ ...... ..... C:"JW.;.I..SJ . ..,.Iil1 :;I.a.:i ..... .... ..!..J ..... u.,> ......l.. ..Ili...l\...,..,..., ......... .... .... -'J.:-. JI.>.oliY' '--! ...Ji-II tWI ..,:-....">ll...,:.......,,..I1 J-..:.v-) v- ',u.....n O'-iY'JS' .... . .H· ... ....... .u.......1.,H ....... h.a.l...\ VS-u ...... U"tA.>II.:..I&-o.,k 'pI...! """,,'11 ....... rWl .l.,.iy.,JI .... J\i.II ...... 1ii...i1, 0.- ';J\U, :. IJ· .. n <lI....,.:;..,...1J.I. y __ ..,JlI UIHo').oYl &0 "*::WI.",.>+1I rbJ1 ...... t......l..'11 ...... .... ylol...lll _.l.! iY' t",1 A - V """! r.>llui.;il-olljp.;1ll.u... ..... .\!.oJ:! XI' OJI..i,;#- .... '1J .t.....>"-'.iI..,....yJI,.;....., 1...)';l,J1.,i ..... ..>.! ,;1ioJI &0 ..,...J.i..lll.;- '1 J I .... ..sJ.!SllJ.!.O.l\ J..t'!'"Jui.,;-ll ............. ... ..... ' '''''')1..&1\ • .,;i \ -, ........ 04> .".-J! il4J.1 ... ';""'.!l.I1..co t.S.. ....... ....::wI .. .1,.>IIu..u! ...... JIJ1..!.,...... """ (NPC)41,..Jl ..... +'11' I' r.!)V;1f , ..,...su. oW..."! . . manifestations, the termi n al elimination half-life remaining unchanged. An increase in half-life is observed in the presence of hepatic failure. Renal failure patients: plasma amlodipine concentrations are not correlated with the degree of renal impairment. 6. PHARMACEUTICAL PARTICULARS 6.1 Shelf life product should not be used after the expiry date printed on the outer carton 6.2 Special precautions for s torage store below 30 ' C 6.3 Na ture and contents of container 30 capsules: heat-formed blister pack (PVC/ Aluminium). 7. DATE OF APPROVAL/REVISION: Aug. 8,2001 PFIZER, FRANCE. Manufac tured by: Pfizer, France. Packed b y: Jamjoom Pharmaceuticals Co. Ltd. , Jeddah, Saudi Arabia. Marketing Authorization Holder: Pfizer Saudi Arabia, LLC Trade mark of Pfizer Inc. , New York, U.S. A. To Report side effects Saudi Arabia National Pharmacovigilance Center (NPC) Fax: +966 11 205 7662 E-mail: npc. drug@ sfda.gov.sa Website: www. sfda. gov. sa/npc Other GCC states: Please contact the relev ant competent authority. r- 0 J,Jl.o.l U!+.!-'J-i : 44Ju _, 1"+"". -»1-1 ,.. .. . r,....Ii.J..a.I,OJ..,,4 L.J,HjJ).o'1l ui!1. 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E E

LO T"""

C')

_L

135 mm

• AMLOR* (Amlodipine)

1. TRADE NAME OF THE MEDICINAL PRODUCT AMLOR5 mg AMLOR 10 mg amlodipine

2. QUALITATIVE AND QUANTITATIVE COMPOSITION AMLOR5 mg Amlodipine (besylale) . . .. .... . . .. .. . ... . .. .. 6.944 mg equivalent to amlodipine ...... 5.000 mg Microcrystalline cellulose . .. . 72.556 mg Dried maize starch .... . .. ... . . .. ...... ... .. 20.000 mg Magnesium stearate ........ . ..... ... ...... . 0.500 mg for one capsule n' 3 of 100 mg AMLOR 10mg Amlodipine (besylate) ... . ..... ... . . . . .. . ... 13,889 mg equivalent to amlodipine .. ..10,000 mg Microcrystalline cellulose . ......... 65,611 mg Dried maize starch .. .. . .. ..... .. ... .. .. .. .. 20.000 mg Magnesium stearate . .. .. ... .. . .... ..... . . .. 0.500 mg for one capsule n' 3 of 100 mg composITion of the capsule coat: body: gelatin, titanium dioxide cap : gelatin, titanium dioxide, yellow

3. PHARMACEUTICAL FORM Amlor 5mg: Capsule (yellow / white): 30 cap-

sules. Amlor 10mg: Capsule (grey): 30 capsules.

4. CLINICAL PARTICULARS 4.1 Therapeutic indications - Preventive treatment of angina : stable angina and sponta-

neous angina (including Prinzmetal 's angina) - Hypertension 4.2 Posology and method of administration • Hypertension : The starting dose is 1 capsule (5mg) once

a day, which may be increased to a single daily dose of 10 mg, depending on the treatment response.

• Angina Pectosis : The starting dose is 1 capsule (5mg) once aday, which may be increased to a single daily dose of 10 mg, depending on the treatment response.

The maximum daily dose is 10 mg. Except in case of recent myocardial infraction, amlodipine can be administered whatever the degree of left ventricular heart failure. • Use in the Elderly Amlodipine, used at similar doses in elderly or younger patients, is equally well tolerated . • Use in Renal Failure The treatment can be initiated at the usual recomended poso­logy. Changes in amlodipine plasma concentrations are not correlated with degree of renal impairment. Amlodipine is not dialyzable. No dose adjustment of amlodipine is required upon concomi­tant administration of thiazide diuretics, beta- blockers or angiotensin-converting enzyme inhibitors. 4.3 Contra-indications This medicine must never be taken in case of hypersensitivity to dihydropyridines. This medicine is generally unadvised in case of combination with dantrolene (see section 4.5. " Interaction with other medicines » ). 4.4 Special warnings and special precautions for use Special warnings : Efficacy and safety has not been studied in children. It is unadvisable to use amlodipine in children. When clinical signs (asthenia, anorexia, persistant nausea), it is recommanded to perform liver enzymes assays. If increa­sed and especially in case of jaundice, the treatment must be stopped. Precaution for use : - Use in patients with impaired hepatic function: Amlodipine

half-life is prolonged in patients with impaired liver function (see. Section 5.2 " Pharmacokinetic properties»). Dosage recommandations have not been established, so amlodipine should be administered with caution in these patents.

- Pregnancy and lactation: (see. section 4.6). 4.5 Interaction with other medicines and other forms of inter-

action Unadvisable combination (care measure): - Dantrolene (infusion): in animals, cases of fatal ventricular fibrillations are consistently observed when verapamil and dantrolene are administered by IV route. Thus, the combina­tion of a calcium-channel blocker with dantrolene is potential­ly dangerous. However, a few patients have received the com­bination nifedipine and dantrolene without any trouble. Combination needing precaution: - Alpha·1 blockers (alfuzosin , prazosin): increase in the hypotensive effect. Risk of severe orthostatic hypotension. Clinical monitoring. Research of any orthostatic hypotension in the hours following the alpha-l blocker drug administration (particularly at the beginning of the treatment). - Baclofene : increase in the anti-hypertensive effect. Monito­ring of the arterial pressure and posological adaptation olthe anti-hypertensive drug if necessary. - Rifampicine : described for verapamil, diltiazem and nifedi­pin . Decrease of the plasma levels of the calcium channel blocker due to an increase of its hepatic metabolism. Clinical monitoring and , eventually adjustment olthe dose of the cal­cium channel blocker during the treatment with rifampicine and after its withdrawal. - Itraconazole : extrapolated from nifedipine, felodipine and isradipine. Increased risk of oedema due to a decrease of the dihydropyridine hepatic metabolism. Clinical monitoring and, eventually adjustment of the dose of the dihydropyridine the treatment with itraconazole and after its withdrawal.

Combination to be taken into account: - Beta-blockers: hypotension, heart failure in patients with latent or un-controlled heart failure (in vitro negative inotropic effect of the dihydropyridines, more or less marked depen­ding on the products and susceptible to add to the negative inotropic effects of beta-blockers). The presence of a beta­blocker treatment can moreover minimise the reflex sympa­thic reaction set into action in case of excessive hemodyna­mic repercussion. - Imipramine antidepressants (tricyclics): antihypertensive effect and risk of orthostatic hypotension increased (additive effect). - Corticosteroid, tetracosactid (general route): decrease in the antihypertensive effect (hydrosodic retention of the corti­costeroids) . -Neuroleptics : antihypertensive effect and risk of orthostatic hypotension increased (additive effect).

Furthermore, amlodipine does not modify the plasma levels or the renal clearance of digoxine in the healthy volunteers. 4.6 Pregnancy and lactation Pregnancy: Animal studies did not show any teratogenic effects. Without teratogenic effect in animal, malformations in humans are not expected. To date, any substances responsible for malforma­tions in humans have effectively been found to be teratogenic in animals in properly conducted studies on both species. Presently, there is no relevant or enough data to assess an eventual malformation or foetotoxic effect of amlodipine when administered during pregnancy. Consequently, as a precaution mesure, it is preferable not to use amlodipine during pregnancy. Lactation: There is no data regarding the excretion of amlodipine in breast milk. However, as with others dihydropyridines, the quantities found in breast milk are low, and no undesirable effects were notified on the basis of isolated cases. As a precaution mesure, it is advisable to avoid if possible, the administration of this medicine to the breast-feeding woman. 4.7 Effects on ability to drive and use machines: At the beginning of the treatment, a special caution will have to be observed by drivers or machines users, due to the risk of giddiness (see section 4.8 « Undesirable effects »). 4.8 Undesirable effects - Adverse reactions occurring most commonly are linked to the vasodilator action of the drug. These essentially involve headache, redness or feeling of heat of the face. These side effects occur most often during the initial weeks oltreatment and generally lessen as it continues. In common with other dihydropyridines an ankle and/or facial edema could occur. This is more frequent at high doses. -There have been rarer reports of: - Cardiac effects: tachycardia, palpitations, syncope. . Cutaneomucous effects : alopecia, increased sweating, aller­gic reaction including pruritus, rash and angioedema. As with other dihydropyridines, slight gingival enlargement has been reported in patients with marked gingivitis/parodontitis. Such enlargement can be avoided or disappear by careful oral hygiene. - Digestive effects : abdominal pain, dyspepsia, dysgueusia, appetite loss, nausea, diarrhoea, constipation, dry mouth. -Neuromuscular effects : muscular cramps, myalgia, arthral­gia. - Liver effects: Hepatitis, jaundice and hepatic enzyme eleva­tions have been reported very rarely (mostly consistent with cholestasis) with a few cases severe enough to require hos­pitalization. They are recovered at the treatment withdrawal. - Lungs effects: dyspnea. . Genito-urinary effects: pollakiuria, impotence as reported with other anti-hypertensive drugs, gynecomastia. - Neuropsychic effects : asthenia, giddiness, sleeping disor­ders, paresthesia, trembling , visual disturbances, depressive disorders. - General effect: malaise. - Hematopoietic effect : thrombocytopenia. -Vascular effect: vasculitis. - As with other calcium-channel blockers, the following events have been rarely reported : anginal pain , myocardial infarction, arrythmiaThey can be linked tothe pathology pre­existent to the treatment, and must lead to discuss the conti­nuation of the treatment. 4.9 Overdose Massive overdose could cause notable peripheral vasodila­tion leading to marked and probably prolonged systemic hypotension. Any hypotension following acute poisoning requires, monitoring in a cardiology intensive unit. A vaso­constrictor could be used to restore vascular tone and blood pressure. Amlodipine is not dialysable.

5. PHARMACOLOGICAL PROPERTIES 5.1 Pharmacodynamic properties SELECTIVE CALCIUM INHIBITOR WITH VASCULAR EFFECT Amlodipine is a calcium antagonist belonging to the dihydro­pyridines group wich acts on the calcium channel binding sites of both 1-4 dihydropyridine and diltiazem. It causes pro­longed inhibition of the entry of calcium via slow calcium channels into smooth muscle and myocardial cells. As with the other dihydropyridines, amlodipine has diuretic and natriuretic properties in the animal. The mechanism of its antihypertensive action is linked to a direct relaxant effect on vascular smooth muscle. Single daily administration in hypertensive patients enables a significant lowering of blood pressure levels in supine or standing position throughout the 24-hour period, without any concomitant acceleration in heart rate. The progressive action of amlodipine avoids episodes of hypotension. Amlodipine decreases total peripheral resistance (post-load) without causing reflex tachycardia. This is accompanied by a reduction in myocardial energy consumption and oxygen requirements. It causes vasodilatation of the coronary arte­ries and arterioles, thus increasing myocardial oxygen supply.

L

I

135 mm

Administration of amlodipine in angina patients increases exercice tolerance time to angina onset, ST segment depres­sion and reduces both the frequency of angina attacks and nitroglycerin consumption. As with the other calcium antagonists, amlodipine is metabo­lically neutral and has no effect on plasma lipid levels. It can be used in patients with diabetes or gout. In hypertensive renal transplant recipients treated with cyclo­sporine, amlodipine at the usual doses decreases blood pres­sure, increases renal perfusion and glomerular filtration rate and lowers peripheral vascular resistance. The long term consequences of these modifications on the graft's fonction are not assessed. 5.2 Pharmacokinetic properties After oral administration at therapeutic doses, amlodipine is completely absorbed. Amlodipine (absolute) biovailability has been estimated to be between 64 and 80 %. Peak plasma concentration occurs late, approximately 6 to 12 hours after dosing. The volume of distribution is 21 I/kg. The terminal elimination half-life is 35 to 50 hours and enables single daily administration Steady state concentrations are reached after 7 to 8 days of administration. Amlodipine is almost entirely metabolised to inactive metabo­lites. Ten percent of the parent substance and 60% of meta­bolites are excreted in urine. In vitro studies have shown that circulating amlodipine is 97.5 % bound to plasma proteins. Plasma concentrations of amlodipine in the elderly are higher than in younger patients this being unaccompanied by clinical

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manifestations, the terminal elimination half-life remaining unchanged. An increase in half-life is observed in the presence of hepatic failure. Renal failure patients: plasma amlodipine concentrations are not correlated with the degree of renal impairment.

6. PHARMACEUTICAL PARTICULARS 6.1 Shelf life product should not be used after the expiry date printed on the outer carton 6.2 Special precautions for storage store below 30 ' C 6.3 Nature and contents of container 30 capsules: heat-formed blister pack (PVC/Aluminium).

7. DATE OF APPROVAL/REVISION: Aug. 8,2001 PFIZER, FRANCE. Manufactured by:Pfizer, France. Packed by: Jamjoom Pharmaceuticals Co. Ltd. , Jeddah, Saudi Arabia. Marketing Authorization Holder: Pfizer Saudi Arabia, LLC

• Trade mark of Pfizer Inc. , New York, U.S.A. To Report side effects • Saudi Arabia National Pharmacovigilance Center (NPC) • Fax: +966 11 205 7662 • E-mail: [email protected] • Website: www.sfda.gov.sa/npc • Other GCC states: Please contact the relevant competent authority.

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