Konsep Dasar Farmakologi.pptx

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    KONSEP DASAR FARMAKOLOGI

    Nurina Hasanatuludhhiyah dr., M.Si

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    FARMAKOLOGI

    Pharmacology 

    Pharmacn ! "at

    L#s !ilmu

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    FARMAKOLOGI$ DEFINISI

    Ilmu yan# m%m&%la'ari s%nya(a yan#"%rint%ra)si d%n#an sist%m )%hidu&an*living system+ m%lalui &rs%s )imia(i,

    t%rutama m%lalui i)atan d%n#anml%)ul &%r%#ulasi dan a)tiasiatau&un inhi"isi &rs%s tu"uh yan#

    nrmal

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    MEDI-AL PHARMA-OLOG

    Ilmu yan# m%m&%la'ari s%nya(a yan#di#una)an untu) m%nc%#ah,m%ndia#nsis dan t%ra&i &%nya)it

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    O/A0

    Suatu senyawa kimia dengan strukturtertentu, di luar dari nutrien ataubahan makanan esensial, yang apabila

    diberikan kepada suatu organismedapat menghasilkan efek biologis

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    O/A0

    Kep. MenKes RI No. 193/Kab/B.VII/71

    O"at ialah suatu "ahan atau &aduan "ahan$"ahan yan# dima)sud)an untu) di#una)an

    dalam m%n%ta&)an dia#nsis, m%nc%#ah,m%n#uran#)an, m%n#hilan#)an,m%ny%m"uh)an &%nya)it atau #%'ala&%nya)it, lu)a atau )%lainan "adaniah dan

    rhaniah &ada manusia atau h%(an danuntu) m%m&%r%l) atau m%m&%rindah"adan atau "a#ian "adan manusia

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    SE1ARAH

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    LA0AR /ELAKANG

    Perawat Salah Beri Obat, !aBalita Menin""al #sai I$!nisasi

    2n#aran *AN0ARA N%(s+ $ K%matian duaana) /alita, Ela unita *ti#a "ulan+ dan3ahrdin *s%m"ilan "ulan+, (ar#a-andi, /andun#an, Ka"u&at%n

    S%maran# usai m%n'alani imunisasi diPus)%smas &ada 4 M%i lalu, m%nda&at&%rhatian "%sar dari DPRD s%t%m&at.

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    LA0AR /ELAKANG

    O%n!$ Perawat &alai, Pasien B N'aris SalahObat

    Ra(ar &a$p!n" $ Ra"u, 55 F%"ruari 5675

    /%rita KO0A/2MI 8 K%luar#a &asi%n yan# dira(at di

    )amar I.7 ruan# &%nya)it ana) Rumah Sa)it 2mumDa%rah Ryacudu *RS2DR+ Kta"umi, Lam&un# 2tara,m%n#amu) &ada &u)ul 77.66 9I/ )%marin.M%r%)a m%m&rt%s &iha) RS2DR lantaran &%ra(atnya

    salah m%m"%ri)an "at )%&ada 3a)i A"ta P%rmana *4+,&%nd%rita d%mam "%rdarah d%n#u% *D/D+. /%runtun#,)%luar#a s%#%ra m%nyadari dan "at itu "%lumdi)nsumsi.

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    KE1ADIAN MEDI-A0ION ERROR

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    IN0ERAKSI O/A0$02/2H

    Farma)dinami) : K%r'a "at t%rhada&tu"uh

    Farma))in%ti) : K%r'a tu"uh t%rhada&"at

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    S)ienti*) Basis o+Pres)ribin"

    Drug Therapy

    Dosage Form

    kepada penderita

    Obat masuk kedalam

    tubuh dan mencapai

    titik tangkap kerja

    Efek

    FarmakologiObat

    keluar 

    Efek Farmakologi

    menguntungkan

    atau berbahaya ?

    PharmacologyPharmaceutics

    Pharmacokinetics Pharmacodynamics

    Therapeutics

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    PRINSIP FARMAKOKINE0IK 

    O"at harus da&at m%nca&ai l)asitar#%t yan# di)%h%nda)i untu) "isam%m"%ri)an %;%) t%ra&i

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    FARMAKOKINE0IK 

    A"sr"si Distri"usi M%ta"lism% Eliminasi

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    FARMAKOKINE0IK$ DINAMIKA O/A0DALAM 02/2H

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    A/SOR/SI

     0rans;%r suatu "at dari t%m&at &%m"%rian )%dalam aliran darah

    Fa)tr &%n%ntu )%c%&atan a"sr"si :

    -ara &%m"%rian Di;usi &asi;  Gradi%n )ns%ntrasi K%larutan li&id

    D%ra'at inisasi "at 2)uran &arti)%l "at /%ntu) s%diaan "at

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    -ara&%m"%rian "at

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    -ARA PEM/ERIAN O/A0

    Ent%ral : ral< su" lin#ual< r%)tal Par%nt%ral : intra%na< intramus)ular<

    su")utan Inhalasi  0&i)al

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    PAREN0ERAL

    Intra art%ri : )%mt%ra&i )an)%r< a#%nradi)ntras

    Sumsum tulan# : /ila cara &%m"%rian

    y# lain tida) m%mun#)in)an *misal&asi%n lu)a "a)ar+

    Intrad%rmal : t%s al%r#i< a)sin /-G Intra)ardia) : "at %m%r#%nsi &ada

    h%nti 'antun# Intra&%ritn%al : hm% dialysis

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     0RANSPOR O/A0 MELAL2I MEM/RANSEL

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    Li&id /ilay%r

    Small,

    unchar#%d

    Lar#%,unchar#%d

    Smallchar#%dins

    H5O, ur%a,

    -O5, O5, N5 

    Glucs%

    Sucrs%

    H=, Na=,K =, -a5=,

    -l$

    , H-O>$

    DENIED?

    DENIED?

    S(sh?

    Hydr&h"ic 0ails

    Hydr&h"ic 0ails

    Hydr&hilicH%ads

    Hydr&hilicH%ads

    MEM/RAN DAN A/SOR/SI

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    IONISASI

    O"at : Asam l%mah

      /asa l%mah Asam l%mah &alin#

    "ai) dia"sr&sidalam lin#)un#an &Hasam

    /asa l%mah &alin#"ai) dia"sr"sidalam lin#)un#an &H"asa

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    IONISASI

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    IONISASI

    ASAM LEMAH /ASA LEMAH As&irin Ac%tamin&h%n

    Am&icilin -i&r@acin Furs%mid%

    I"u&r;%n Ph%n"ar"ital  0h%&hylin%

    Al"ut%rl All&urinl

    Amidarn% Am&h%tamin% -hlrBuin%

    -cain% -d%in DiaC%&am

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    P%n#aruh "%ntu)s%diaant%rhada&a"sr&si disaluran c%rna

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    As&%)A"sr"si"at

    &%rInhalasi

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    /IOAAILA/ILI0AS

    ose

    estro'e(  in "!t

    Notabsorbe( 

    estro'e(b' "!t wall

    estro'e(b' lier

    to

    s'ste$i))ir)!lation

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    /IOAAILA/ILI0AS

    Fra)si "at yan# ta) "%ru"ah yan#m%nca&ai sir)ulasi sist%mi) s%sudah&%m"%rian m%lalui rut% &%m"%rian

    t%rt%ntu 2)uran : Ar%a und%r th% cur% *A2-+

    &ada )ura )ns%ntrasi "at dalam

    darah$ (a)tu

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    AREA 2NDER -2RE *A2-+

    /IOAAILA/ILI0AS PADA /ER/AGAI

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    /IOAAILA/ILI0AS PADA /ER/AGAIR20E PEM/ERIAN

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    DIS0RI/2SI

    Prs%s &%r&indahan "at dari alirandarah m%nu'u )% 'arin#an

    Fa)tr : Rat% ; &%r;usin < Plasma&rt%in "indin#< a)umulasi di 'arin#an*dru# r%s%rartissu% "indin#+<Li&lisitas "at< )%mam&uan "at

    dalam m%n%m"us "ld$"rain "arri%r,&lac%ntal "arri%r< t%stis "arri%r

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    PLASMA PRO0EIN /INDING

    Asaml%mah :al"umin

    /asa l%mah: Al&ha7$

    acid#lyc&rt%ins

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    PLASMA PRO0EIN /INDING

    O"at yan# t%ri)at)uat d# &rt%in&lasma

    9ar;arin Sul;namid al&rat

    OAINS Sul;nilur%a

    Ni;%di&in

    P%r#%s%ran i)atan&rt%in &lasma :cth &%m"%rian

    9ar;arin"%rsamaan d#As&irin

    Kndisihi&al"umin%mia*lu)a "a)ar,&%nya)it #in'al,

    &%nya)it h%&ar,

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    /LOOD /RAIN /ARRIER

    P%r"andin#an antara )a&il%r sist%mi) d%n#an)a&il%r ta)

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    SA9AR 2RI*/LOOD PLA-EN0AL /ARRIER+

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    ME0A/OLISME */IO0RANSFORMASI+

    Hasil a)hir m%ta"lism% : "at l%"ih&lar, hidrli) dan larut air s%hin##ada&at di%)s)r%si m%lalui #in'al

    M%ta"lita)ti; 

    Prdru#

    O"ata)ti;

    M%ta"litina)ti; O"ata)ti;O"ata)ti;

    O"at M%ta"lit

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    -ON0OH

    -)tieAc%tamin;%nAs&irin

    -)tiePh%nyl"utaCnPrimidn%-d%inDiaC%&am

    Ina)tie 0alam&icillin/%nrylat%

    Ina)tieAc%tamin;%n sul;at%

      Salysilat% #lucurnid%

    -)tieOi&h%n"utaCn

      Ph%n"ar"italMr&hin%D%sm%thyl diaC%&am

    m%thyl aC%&am

    -)tieAm&icillin

    Parac%taml = ac%tsal

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    ME0A/OLISME

    epar &lasma

    Gin'al Paru Dindin# usus

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    ME0A/OLISME $ FASE

    R%a)si ;as% I : )sidasi < hidrlisis<r%du)si

    EnCim : Sit)rm P46

    &laritas

    R%a)si ;as% II : Kn'u#asi *#lisin,

    #lutatin+, &%m"%ntu)an sul;at,as%tilasi, m%tilasi, #lu)rnidasi

    &laritas < )%larutan dalam

    air < mudah di%)s)r%si

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    ME0A/OLISME

    EnCym% induc%r -ar"amaC%&in% Ph%n"ar"ital

    Ph%nytin Ri;am&in

    EnCym% inhi"itr -im%tidin% Erythrmycin

    Flu%tin% IsniCid K%tcnaCl%

    Ritnair

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    ME0A/OLISME LIN0AS PER0AMA* JFIRS0 PASS EFFE-0 +

    Int%stinalm%ta"lism

    Li%r m%ta"lism Ent%rh%&aticr%cyclin#

    Gut micrr#anisms$ #lucurnidas%s

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    HEPA0I- FIRS0$PASS ME0A/OLISM

    /%r&%n#aruh &ada "at yan# di"%ri)ans%cara ral

    M%ta"lism% "at l%h h%&ar s%"%lum

    "at m%nca&ai sir)ulasi sist%mi) Dru# dia"sr"si )% dalam sir)ulasi

    &rtal harus m%lalui h%&ar untu)

    m%nca&ai sir)ulasi sist%mi) Da&at m%nurun)an "iaaila"ilitas

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    ELIMINASI

    Prs%s %)s)r%si "at atau m%ta"litnyadari tu"uh

     0%rutama m%lalui #in'al

    D%t%rminan :

    2)uran ml%)ul "at */M 4666+

    li&lisitas

    Inisasi

    &rt%in "indin#

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    Rute Ekskresi Obat 

    • Par! terbatas pa(a sen'awa$!(ah $en"!ap0

    • Kerin"at• -ir $ata

    • Salia

    • e)es• -ir s!s!

    • #rine 2inal0

    E)s)r%si "at l%(at

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    E)s)r%si "at l%(at#in'al

    Glm%rular Filtratin:

     &%r#%ra)an "at dari darahm%nu'u  urin% &rt%in$"und dru# tida)

    diltrasiPassi% r%sr&tin: li&id$slu"l% dru#s )%m"alim%nu'u

    darah &lar, nn$slu"l% t%ta& di urin%

    Acti% trans&rt: tu"ular m%ns%)r%si r#anicacids

    and "as%s m%nu'u urin%

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    MANIP2LASI PH 2RIN 2N02K MENINGKA0KANEKSKRESI O/A0

    E)s)r%si "at asam l%mah m%nin#)atd%n#an al)alinisasi urin cth : int)si)asisalisilat di"%ri sdium "i)ar"nat

    E)s)r%si "at "asa l%mah m%nin#)atd%n#an asidi)asi urin

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    RASIO KONSEN0RASI -AIRAN 1ARINGAN:DARAHMEN2R20 KONSEP PH PAR0ISI

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    FARMAKODINAMIK 

    M%m&%la'ari %;%) "at t%rhada&sil#i dan "i)imia s%lular danm%)anism% )%r'a "at.

     0&i) "ahasan :

    Respons obat

    Interaksi obat dengan reseptor

    Kurva dosis – efek

    Fenomena farmakodinamik

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    RESPONS O/A0

    Mole)!lar e4e)ts

    5ell!lar e4e)ts

    6iss!es e4e)ts

    Or"an e4e)ts

    5lini)al e4e)ts

    -%ti+asi a(en'la'e )')lase

    5') -MP $enin"%at

    ilatasi bron)hi bron)ho(ilatasi0

    Perbai%an +!n"si par!

    Pen(erita berna+as (en"an bai%

    r!"A#nist "%ta$5 *Sal"utam

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    5lini)al e4e)ts

    esirable6herape!ti)0

    #n(esirable

    on(eleterio!sSi(e e4e)ts06'pe - pre(i)table/a!"$ente(0

    6'pe B !npre(i)table/bi8arre0 

    eleterio!s6oi) e4e)ts0Patholo"i)al

      ne)rosis02enotoi)  M!ta"enesis,  5ar)ino"enesis06erato"eni)

    E;%) Farma)l#i

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    ::K S-MPIN2

    6'pe -pre(i)table/a!"$ente(0  Per%e$ban"an e+e%+ar$a%olo"i

      Insi(en (an $orbi(itastin""i  ;aran" bersi+at &i+ethreatenin"  apat (ihin(ari <

    pe$aha$an+.%ineti%/+.(ina$i%,6M,

      $en"hin(ar%anpoli+ar$asi

      Mis, -nti)holiner"i)=

    6'pe B !npre(i)table/bi8a- ;aran" tera(i >1?@0Bersi+at li+ethreatenin" ( $er!pa%an iatro"eni) (r

     in(!)e( (iseases0-Mis, Rea%si i(ios'n)rati), i$$!nolo"i)/aller"i)$is,anaph'lais0

     

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    RESPONS O/A0

    Mula )%r'a *onset of action+ : dimulai&ada (a)tu "at m%masu)i &lasmadan "%ra)hir sam&ai m%nca&ai

    )ns%ntrasi %;%)ti; minimum Lama )%r'a *duratin ; actin+ :

    lamanya "at m%m&unyai %;%)

    ;arma)l#is

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    KONSEP RESEP0OR

    R%s%&tr m%n%ntu)an hu"un#an)uantitati; antara dsis "at d%n#an%;%) ;arma)l#is

    R%s%&tr "%r&%ran dalam s%l%)tiitas)%r'a "at

    R%s%&tr m%m&%rantarai a)si

    ;arma)l#is dari a#nis dan anta#nis

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    RESEP0OR

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    RESEP0OR

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    RESEP0OR

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    I t i i ti it

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    Intrinsic activity

     !ignal Transduction Path"ays#

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    K!ra ose Respon in io :A)a)' Poten)' 0

    :I5-5C PO6:N5C  

    Th ti d T i Eff t D & l t dTherapeutic and To$ic Effects are Dose &elated'

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    Therapeutic and To$ic Effects are Dose%&elated'

    Phenobarbital

    Therapeutic and To$ic Effects are Dose%&elated'

    Phenobarbital

                                                                                                                                                                                                                                                                                                                   (            

                                                                                                                                                                                                                                                                                                              &                                                                                                                                                                                                                            e                                                                                                                                                                                                                                  s                                                                                                                                                                                                                                  p                                                                                                                                                                                                                                                                                                              o      

                                                                                                                                                                                                                                n

    Hipnotik  )ati

    Dose of Phenobarbital

    ED*+ ,D*+

     0h%ra&%utic Ind%:LD46

    ED46r us% tic ds%

     0D46

    ED46

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    • RESISTANCE (usually refers to antimicrobialdrugs)

    • TOLERANCE: menurunnya efe obat selama!emaaian berulang

    • TAC"#$"#LA%IS & tolerance yang ter'adinyaecara acute ( & ali !emaaian)

    • *o+n regulation : 'umla, rese!tor yang menurun

      Agonist menyebaban do+n regulation

    • -! regulation : 'umla, rese!tor yang meningat  Antagonist menyebaban u! regulation

    • RESISTANCE (usually refers to antimicrobialdrugs)

    • TOLERANCE: menurunnya efe obat selama!emaaian berulang

    • TAC"#$"#LA%IS & tolerance yang ter'adinyaecara acute ( & ali !emaaian)

    • *o+n regulation : 'umla, rese!tor yang menurun

      Agonist menyebaban do+n regulation

    • -! regulation : 'umla, rese!tor yang meningat  Antagonist menyebaban u! regulation

    FENOMENA FARMAKOLOGI

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    FARMAKOLOGI DAN PROSES KEPERA9A0AN

    -. -ssess$ent

    7. Instru)si &%m"%rian "at

    5. Ri(ayat al%r#i )li%n

    >. Kndisi )li%n

    .  0u'uan &%r%s%&an "at

    4.

    P%mahaman )li%n m%n#%nai tu'uan&%n#"atan

    . P%rlu tida)nya )n%rsi dsis "at

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    FARMAKOLOGI DAN PROSES KEPERA9A0AN

    B. -nalisis/(ia"nosis %eperawatan

    7. Risi) in'uri

    5. P%mahaman )li%n yan# r%ndah

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    FARMAKOLOGI DAN PROSES KEPERA9A0AN

    5. Plannin"

    7. Kli%n a)an t%ta& "%"as dari risi) in'uri

    5. Kli%n a)an da&at m%n#%mu)a)an

    tu'uan &%n#"atan

    >. Kli%n a)an "%r%s&n d%n#an "ai)t%rhada& &%n#"atan

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    FARMAKOLOGI DAN PROSES KEPERA9A0AN

    . I$ple$entasi

    7. M%nin'au instru)si &%n#"atan

    5. M%n%ntu)an ri(ayat al%r#i )li%n

    >. M%nin'au )ndisi )li%n yan# &%rlum%nda&at)an &%n#"atan

    . M%m%ri)sa tanda ital )li%n 'i)adi&%rlu)an

    4. M%n%ntu)an &%rlunya )n%rsi dsis

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    FARMAKOLOGI DAN PROSES KEPERA9A0AN

    . I$ple$entasi. M%nyia&)an dan m%m"%ri)an "at d%n#an

    dsis yan# t%&at

    Q. M%n%ntu)an &%mahaman )li%n m%n#%nai "at

    yan# dir%s%&)an. M%n#a'ar)an )li%n m%n#%nai "at yan#

    di"%ri)an, a.l nama "at, dsis, cara &%m"%rian,;r%)u%nsi &%m"%rian, tu'uan &%n#"atan,

    &%m%ri)saan la" ut) mnitrin#, %;%) sam&in#. M%ncatat)an &%m"%rian "at dan r%s&n )li%n

    thd t%ra&i

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    FARMAKOLOGI DAN PROSES KEPERA9A0AN

    :al!asi

    7. Kli%n m%n%rima "at d%n#an dsisyan# t%&at

    5.  0anda ital )li%n t%ta& nrmal

    >. Kli%n "%r%s&n d%n#an "ai) thd "atyan# di"%ri)an

    . Kli%n tida) m%n#alami %;%) sam&in#"at

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    P2LMONAR PHARMA-OLOG

    h( dru#s act n th% lun# th% &harmacl#ical th%ra&y ;

    &ulmnary dis%as%s

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    RO20ES OF DR2G DELIER 0O 0HE L2NGS

    Oral Par%nt%ral Inhalatin

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    INHALED RO20E

    &r%;%rr%d md% &articularly ;r asthmaand -OPD

    dir%ct %T%ct n air(ays

    much l(%r ris) ; syst%mic sid% %T%cts Mr% ra&id ns%t E# : crmlyn sdium< antichlin%r#ic

    dru#s<

    U 5 a#nists and crticst%rids

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    DEPOSI0ION OF INHALED DR2G

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    FA-0ORS FOR DR2G DEPOSI0ION

    Particl% SiC% Pharmac)in%tic D%li%ry d%ic%s

    PAR0I-LE SI3E

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    PAR0I-LE SI3E

    &timum siC% 5$4 m mass m%diana%rdynamic diam%t%r *MMAD+

    Lar#%r &articl%s s%ttl% ut in th% u&&%r

    air(ays small%r &articl%s r%main sus&%nd%d d%li%rin# dru#s t small air(ays $

    hydr@ural)an% *HFA+ &r&%llant

    PHARMA-OKINE0I-S

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    PHARMA-OKINE0I-S

    Only 76$56V ; dru# %nt%rs th% l(%rair(ays (ith a cn%ntinal &r%ssuriC%dm%t%r%d$ds% inhal%r *&MDI+

    small%r MMAD al%lar d%&sitin a"sr&tin ;rm th% lun#s int th% #%n%ralcirculatin syst%mic sid% %T%ct

    cicl%snid% 8 a &rdru# actiat%d "y%st%ras%s in th% r%s&iratry tract t th%acti% &rinci&l% d%s$cicl%snid%

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    DELIER DEI-ES

    Pr%ssuriC%d M%t%r%d$Ds% Inhal%rs S&ac%r -ham"%rs Dry P(d%r Inhal%rs N%"uliC%rs

    PRESS2RI3ED ME0ERED$DOSE

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    PRESS2RI3ED ME0ERED$DOSEINHALERS

    Dru#s ar% &r&%ll%d;rm a canist%r (ithth% aid ; a&r&%llant,&r%iusly (ith achlr@urcar"n*Fr%n+ "ut n(

    r%&lac%d "y ahydr@ural)an%*HFA+

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    SPA-ER -HAM/ERS

    Lar#%$lum% s&ac%r d%ic%s"%t(%%n th% &MDI and th%&ati%nt

    r%duc%s th% amunt ; dru#that im&in#%s n th% r&haryn incr%as%s th% &r&rtin ; dru#

    inhal%d int th% l(%r air(ays us%;ul in d%li%rin# inhal%d dru#s

    t small childr%n

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    DR PO9DER INHALERS

    usin# d%ic%s thatscatt%r a n%&(d%r dis&%rs%d

    "y air tur"ul%nc%n inhalatin

    May "% irritant

    NE/2LI3ERS

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    NE/2LI3ERS

    may "% ins&ir%ddurin# tidal "r%athin#

    d%li%r much hi#h%r

    ds%s 2s%;ul ;r acut%

    %ac%r"atins ;asthma and -OPD

    Fr in;ants and smallchildr%n

    ORAL RO20EPAREN0ERAL

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    ORAL RO20E RO20E ral ds% is much

    hi#h%r than th%inhal%d ds% tachi%% th% sam%%T%ct *ty&ically "y a

    rati ; 56:7+ Mr% cmmn

    syst%mic sid%%T%cts

    Fr dru#s can nt "%#i%n "y inhalatin

    in th% s%%r%ly ill&ati%nt (h isuna"l% t a"sr"dru#s ;rm th%

    GI tract