Alprazolam Golongan : Benzodiazepine (anxiolytic) Generik : alprazolam. Dagang : Xanax, Atarax, Zypras. Indikasi : Generalized anxiety disorder (IR) Panic disorder (IR and XR) Gang. Cemas lainnya + insomnia Ajunctive : Acute mania dan Acute psychosis Cara kerja Alprazolam Mengikat Bzp rec. pd GABA-A ligand-gated chloride channel Meningkatkan efek inhibisi Gaba. Meningkatakan aliran chlorida melalui saluran Gaba Menghambat aktivitas neuron di Inhibits neuronal activity presumably in amygdala-centered fear circuits shg menguntungkan utk terapi gangguan cemas. Onset efek : Bisa pd pemberian pertama sp beberapa minggu kmd. Respon Alprazolam (+) Th/ cemas singkat (bbrp mgg) : bs distop - sesuai kebutuhan. Th/ Gg. Cemas kronis: Tujuan : remisi penuh, cegah kambuh. Mengurangi/menghilangkan gejala,tp tdk menyembuhkan krn bs kambuh T/ cemas jangka panjang : Ganti SSRI atau SNRI utk maintenen. Bzp 6 bln ,gejala(-), tapering of Kambuh , ganti : o SSRI or SNRI; o benzodiapine ; o kombinasi Bzp dan SSRI or SNRI. Respon terapi Alprazolam (-) Pertimbangkan : Ganti obat lain atau tambahkan obat augmentasi. Psikoterapi (CBT). Konkomitan substance abuse Alprazolam abuse Diagnosa lain : ok KMU Kombinasi dg obat augmentasi pd Partial Response/TreatmentResistance Bzp adl augmenting agent(obat penguat efek…): Antipsikotik dan mood stabilizers. , dipakai utk aumentasi obat: SSRIs and SNRIs pd T/ gg. Cemas. Tidak rasional jika dikombinasi dg Bzp lain. Sbg “anxiolitik” Bzp konkomitan dg sedatif-hipnotik lain utk menidurkan. Tests periodik LFT dan darah lengkap utk px Kejang2 , konkomitan dg KMU/ obat2an lain KMU dlm jangka panjang. Efek Samping alprazolam Mekanisme ES: Mekanismanya = efek terapi; ES = respon berlebihan pd rec.Bzp. Adaptasi rec.Bzp jangka panjang dependensi, toleransi dan withdrawal Bzp. ES umumnya cepat muncul, sering hilang setelah bbrp lama. ES yg sering terjadi : ✽ Sedation, fatigue, depression ✽ Dizziness, ataxia, slurred speech, weakness ✽ Forgetfulness, confusion ✽ Hyper-excitability, nervousness o Rare hallucinations, mania o Rare hypotension o Hypersalivation, dry mouth ES yg berbahaya/menganggu Depresi pernafasan, tut bila ada over dosis depresan CNS. Jarang ggn fs hati, ginjal ; blood dyscrasias BB naik Sedasi : Jarang Pd awal terapi, dosis naik Hilang dg waktu What To Do About Side Effects Tunggu (=observasi), Tunggu , Tunggu Turunkan dosis. Ganti dg alprazolam XR Dosis terbesar diberikan sbl tidur, agar saing tdk ngantuk. Ganti obat lain. Beri flumazenil jika ES nya berat/membahayakan jiwa. DOSING AND USE Alprazolam (Alp) Usual Dosage Range Anxiety : alprazolam IR: 1–4 mg/day Panic : alprazolam IR: 5–6 mg/day Panic : alprazolam XR: 3–6 mg/day Dosage Forms : Alp. IR tab. 0.25 mg scored ; 0.5 mg , 1 mg ; 2 mg multiscored Alp IR solution, concentrate 1 mg/mL Alp XR (extended-release) tab 0.5 mg, 1 mg, 2 mg, 3 mg How to Dose Anxiety, alprazolam IR : dimulai 1 /3 x ( 0.75 – 1.5 mg/hr), naikkan tiap 3-4 hr ; sp 4 mg/hr. Panic, alprazolam IR ; dimulai 1 /3 x 1.5 mg/hr), naikkan < 1 mg tiap 3-4 hr ; sp 4 10 mg/hr. Panic, alprazolam XR : dimulai 1 x 0.5–1 mg/hr, naikkan 1 mg/hr 10 mg/hr. Dosing Tips Bzp -sparing strategy : dosis terendah - lama T / tersingkat. Ases rutin perlu obat kontinu? Resiko dependensi naik dg naiknya dosis & lama terapi. Utk Gejala cemas antar-wkt obat: naikan dosis/dibagi lebih frequent/ ganti XR/Top Up (ektra) XR : 1 – 2 kali/hr, jangan diparo. Dosis Alp + 1/10 dosis Bzp , 2 kali dosis clonazepam Overdose sedation, confusion, poor coordination, diminished reflexes, coma dead Alprazolam saja / + alkohol. Long-Term Use Resiko dependensi : T/ > 12 mgg, tut pd polysubstance abuse. Habit Forming Alpra. is a Schedule IV drug Bisa dependensi dan/ tpleransi. How to Stop Bila mendadak ; riw. Kejang2; dosis > 4 mg kejang2• Tapering : 0.5 mg/3hr Kasus sulit: < 0,025 mg / mgg. Kasus sangat sulit tapering dg 1%/3hr ( tapering lambat + desensitisasi perilaku Yakinkan : gejala kambuh/ withdrawal ?• Bzp-dependent anxiety patients dan insulin-dependent diabetics adalah tidak addiksi thd obatnya. Px Bzp-dependent distop obat : Gejalanya kambuh. Gejala tambah buruk (rebound), dan/atau ok gej. withdrawal Pharmacokinetics Dimetabolisir oleh CY P450 3A4 Metabolitnya tidak aktif. T ½ eliminasi=12–15 jam Drug Interactions Alp + CNS depresan efek depresif > Inhibitor CY P450 3A4, eg nefa-zodone, fluvoxamine, fluoxetine: jus jeruk menurunkan clearance me -naikkan kadar plasma Alp. dan efek sedatif alp.jd kadr Alp hrs diturunkan, Azole antifungal agents ( ketoconazole ,itraconazole), macrolide antibiotics, protease inhibitors: mening-katkan kadar plasma Alp. Inducers of CY P450 3A4 (carbamazepine), menurun-kan clearance dan kadar Alpefek terapi turun. Other Warnings/Precautions Perubahan dosis atas anjuran dokter. Px Py Paru kematian (jarang). Riw Pg Zat / alkohaol meningkatkan resiko dependensi. T/ px Depresi Hypomania ,mania ; mpberat ide2 bunuh diri. Hati2 pd px “ obstructive sleep apnea “ Menyebabkan gangguan pikiran dan perubahan perilaku . Do Not Use Pd px narrow angle-closure glaucoma Px memakai ketoconazole or itraconazole (azole antifungal) Riw. allergy to alprazolam atau Bzp lainnya. Pemakaian Alprazolam pd populasi khusus : Pada pasien-2 : • Px Gg Ginjal hati2 • Px Gg Hati : mulai dg dosis rendah: (0,5-0,75 mg/hr) , dibagi 2- 3 dosis • Px Gg Jantung : Bzp telah dipakai utk T/ Cemas ok IMA (infark) Elderly • mulai dg dosis rendah : (0,5-0,75 mg/hr) , dibagi 2- 3 dosis , dimonitor ketat. Children and Adolescents • Keamanan dan kemanjurannya blm pasti, tp sering dipakai dlm wkt yg singkat dan dosis rendah. • Efek jangka panjang blm diketahui. Sebaiknya dosis rendah, monitor lebih ketat Pregnancy Risk Category D [pd janin terbukti beresiko, manfaat terapi (+) pertimbangkan pemakaiannya. Terbukti meningkatkan kemungkinan cacad pd janin., shg Tidak dianjurkan utk T/ cemas pd trimester Penghentian : tapering of Pemberian pd trimester III withdrawal efect pd janin. Kejang2 yg bisa membahayakan janin. Breast Feeding Rekomondasi : stop obat atau pemberian susu botol. SE pd infant : gang makan, sedasi, weight loss. THE ART OF PSYCHOPHARMACOLOGY-ALP Potential Advantages Onset efeknya cepat. Sedasinya kurang dp Bzp lainnya. Ada tablet long acting (XR) Potential Disadvantages Efek Euphoria nya bs menyebabkana “abuse” Abuse pd px sedang/riw substance abusers Primary Target Symptoms Panic attacks Anxiety Pearls Paling populer dikalangan dokter, psikiater. Bermanfaat ajunctive T/ dg SSRI; SNRI pd Gg Cemas Tidak efektif sbg monoterapi Psikotik; utk ajunktif : mood stabilizers dan antipsikotik. Bisa utk tr depresi ; bs menyebabkan depresi px lainnya. Stop Alp : Resiko kejang2 pd 3 hr pertama , tut bl ada riw ; kejang , trauma kepala, atau withdrawal zat pd abuser. Onset efek klinis bs mendahului plasma half-life (>cepat) ,shg dpt dbrk > 2-3 kali/hr , khususnya utk immediate release alprazolam Pemberian : fluvoxamine, fluoxetine, atau nefazodone dpt meningkatkan kadar alprazolam shg pasien sangat ngantuk levels, atau dosis Alprazolam diturunkan sp ½ nya atau lebih . Utk tr Insomnia : bs sbg gejala gg jiwa primer atau komorbiditas atau ok KMU. ✽ Alprazolam XR kurang sedatif dp immediate release alpra. ✽ Alprazolam XR: frekuensi pemberian < I.R ; gej interdose <, dan kurang “clockwatching” nya pd pasien cemas . Kenaikan kadar plasma XR > lambat euphoria & abuse > kecil Penurunan kadar plasmaXR > lambat withdrawal > kecil ✽ Alprozolam XR : durasi onset biologisnya > lama dp clonazepam ✽ Clonazepam dianggap “longacting alprazolam-like anxiolytic” ; Alprazolam XR dianggap”longer-acting clonazepam-like anxiolytic”; dg keunggulan kurang : euphoria, abuse, dependence, dan withdrawal problems, RISPERIDONE Class : Nama : Brands : Risperdal (oral) CONSTA (im) Generic: Resperidone Atypical antipsychotic Serotonin-dopami-ne Antagonist, SDRA; Second generation antipsychotic; Mood stabilizer THERAPEUTICS :Commonly Prescribed For (bold for FDA approved) Schizophrenia Terapi : oral/Consta Mencegah kambuh : oral Gang.Psikotik lainnya : oral Acute mania: oral monotherapy and adjunct to lithium or valproate Bipolar maintenance Bipolar depression Gang. Perilaku pada : Demensia ; Anak-2 dan Remaja. Problema Gang. Kontrol impuls CONSTA : long-acting microspheres intramuscularly, deep , gluteal How The Drug Works How Long Until It Works Blokade D2 dopamine Rec. menurunkan gejala positif psikosa ,menstabilkan gejala afektif,. Gejala Psikotik dapat membaik dalam 1 minggu, tapi perlu beberapa minggu untuk berefek penuh pada gejala perilaku yaitu sampai stabilisasi gejala kognitif dan afektif. Blokade serotonin 2A Rec, meningkatan release Dopamin kemudian menurunkan ES/gejala motorik dan memperbaiki gejala kognitif dan afektif. Interaksi pada receptor2 lain bisa berperanan pada efikasi resperidon• Lama efikasi obat dianjurkan ditunggu : Umumnya : 4 – 6 mgg bisa sampai 16 – 20 minggu untuk berespon bagus, terhadap gejala kognitif ✽ eg pd Rec. Alpha 2 antagonist bs menimbulkan efek antidepresan. If it doesnt work Ganti antipsikotik atipikal lainnya (olanzapine, quetiapine, ziprasidone, aripiprazole, atau amisulpride) Jika dengan > 2 antipsikotik monoterapi tdk berrespon pertimbangkan clozapine Jika tidak ada antipsikotik atipikal lini pertama yg efektif pertimbangkan : Terapi dengan dosis tinggi , atau Augmentasi dengan valproate or lamotrigine Beberapa pasien perlu antipsikotik konvensional(tipikal) Pertimbangkan “tidak patuh” (noncompliance) dan Ganti antipsikotik yg efek sampingnya lebih rendah. atau Anti psikotik long acting (depot injection) Pertimbangkan segera mulai rehabilitasi dan psikoterapi• Pertimbangkan adanya concomitant drug abuse If It Works Pada px Skizofrenia : Menururunkan gejala Positif. Memperbaiki gejala Negatif : agersivitas, gej kognitif & afektif. Remisi parsial: menurunkan gejala sp 1/3 Dengan th/ teratur > 1 thn , 5–15% px perbaikan gej. > 50–60% (superresponders, “awakeners” ) dpt bekerja,hidup mandiri, dpt bersosialisasi. Px Bipoler : Reduksi gej. sp > ½ nya. Teruskan terapi sp “a plateau of improvement”, teruskan : Selama 1 thn (Episode I psikosa) Selama mungkin (Episode > II) Bahkan pada Ep I , tr/ bisa selamanya Pada Gg.Bipoler bs mereduksi dan mencegah kambuhnya mania Best Augmenting Combos for Partial Response or TreatmentResistance Valproic acid (valproate, divalproex, divalproex ER) Other mood stabilizing Anticonvulsants (carba-mazepine, oxcarbazepine, lamotrigine) Lithium Benzodiazepines SIDE EFFECTS How Drug Causes Side Efects Bloking reseptor : Alpha 1 adrenergic dizzines, sedasi, hipotensi. Dopamine 2 recs.di : Striatum, ES motorik , tut dosis tinggi. Pituitary, hiperprolaktinemia Mekanisma atipikal antipsikotik thd insiden : menaikkan BB, DM dan dislipidemiablm diketahui. ✽Dose-related hyperprolactinemia Notable Side Efects Dizziness, insomnia, headache, anxiety, sedation Meningkatkan resiko DM & dyslipidemia ✽Dose-dependent EPS(symptomps) Tardive dyskinesia . Nausea, constipation, abdominal pain,weight gain Orthostatic hypotension, Tachycardia, sexual dysfunction Life Threatening or Dangerous Side Effects Hyperglycemia, dg : ketoacidosis or hyperosmolar , coma or death. Px Lansia dementia : CVA ; Stroke, TIA, dead. Meningkatkan kematian mortalitas pd lansia dg dementia-related psychosis Neuroleptic malignant syndrome Kejang2 Weight Gain Kasus Weight gain : cukup banyak. Jadi problema medik Bisa beda orang dan/antipsikotiknya. Sedation Kasusnya cukup banyak. Umumnya hanya sementara. Efek sedasi masing2 antipsikotik berbeda DOSING AND USE Usual Dosage Range 2 - 8 mg/hr – oral utk : Psikosa Akut. Gangguan Bipolar 0.5 - 2.0 mg/hr – oral utk : Anak-2 dan Lanjut usia. 25–50 mg depot - im , tiap 2 minggu. Dosage Forms Tablet : 0.25; 0.5; 1, 2, 3; 4 mg, Orally disintegrating tablets (XR) 0.5 mg, 1 mg, 2 mg Liquid 1 mg/mL — 30 mL/botol. Risperidone long-acting depot microspheres formulation for deep im inj (gluteal). 25 mg; 37.5 mg; 50 mg vial/kit How to Dose Psikosa non-emergensi Dimulai: oral 1 mg/hr; dibagi dalam 2 dosis -> hari berikutnya naikan 1 mg/hr sampai dosis efektif tercapai Umum maks 16 mg/hr . Khusus: efek maks 4 - 8 mg/hr Dpt diberikan 1 kph / 2 kph. Long-acting risperidone : Harus dicoba oral dulu. Deep im, gluteal, tiap 2 minggu Long-acting risperidone : Harus dicoba oral dulu. Inj I Consta + Oral antipsiko-tik 3 minggu oral di stop. Penyuntik : terlatih. Dosis : Consta 25 - > 50 mg/ 2mgg . Interval titrasi > 4 mgg. Jangan menggabungkan 2 vial Consta, (eg 50 mg/vial , tidak boleh diganti 2 vial @ 25 mg/ suntikan. Dosing Tips – Oral Formulation Less may be more: berikan dosis terendah, dg “efikasi stabil”, tanpa mengurangi efikasinya; oleh karena dapat menurunkan efek samping, terutama pd dosis > 6 mg/hr; ✽ Dosis ter Efektif utk Psikosa ; Gg Bipoler : 2 – 6 mg/hr ( dosis rata2 4,5 mg/hr ). Dosis ini paling murah dp obat lain. Px Gaduh gelisah drpd menaikkan dosis, pertimbangkan augmentasi dg : benzodiazepin atau antipsikotik tipikal , oral/im. Pd partial responders pertimbangkan augmentasi dg : mood stabilizing anticonvulsant, valproate or lamotrigin. di Approved sp 16 mg/hr - oral, tp EPS meningkat pd > 6 mg/hr. Risperidone oral solution : tidak kompatibel dg teh atau Cola. Anak2 dan Lansia : Mulai dg 2 dd sp dosis maintenen tercapai 1 dd. Berikan dosis yg lbh rendah dr dosis umum. Dosing Tips –Long-Acting Microsphere Depot Formulation Consta inj. : saat inisiasi onset aksi nya bs terlambat 2 minggu. ✽Inisiasi Consta: beri antipsikotik oral 3 minggu (lanjutan/inisiasi) Steady-state plasma concentrations Consta tercapai setelah suntikan, bertahan sp 4 - 6 mgg dr suntikan terakhir. 4 Terlambat inj. Consta > 2 mgg inj. Re-inisiasi , dilindungi dg 3 mgg antipsikotik oral. : < 2 mgg , tdk perlu perlindungan oral Consta hrs disimpan di refrigerator. Harus dibeli dlm paket utuh ok obat tdk dlm btk larutan ( ½ spuit tidak sama dg ½ dosis). Overdose Lethalitas dg monoterapi jarang; sedasi, palpitasi, kejang, TD turun, sesak nafas. Rapid oral discontinuation: Long-Term Use rebound psychosis & Mencegah kambuh skizofrenia. gejala memberat. Maintenen :Gg Bipoler & Gg Tingkah Laku Habit Forming Tidak menyebabkan ketergantungan How to Stop Pharmacokinetics Metabilitnya “aktif” Dimetabolisir : CYP450 2D6 T ½ Risperidon-oral: 20-24 jam. T ½ Long-acting Risp : 3–6 hr Eliminasi Consta : + 7–8 . 2 Titrasi turun dg pelan , > 6-8 mgg - oral, tut utk cross titration. Drug Interactions Meningkatkan efek anti-hipertensi Sbg: antagonis levodopa, dopamine agonists Kombinasi “obat” yg meningkat-kan kadar plasma Risperidone (tak perlu penyesuaian dosis) : Clozapine: (menurunkan Clearance) Fluoxetine & paroxetine Inhibitor CYP4502D6 Pemberian Risp. bsm carbamazepine : menurunkan kadar plasma Risp. Other Warnings/ Precautions Hati 2 pd px dg resiko: Hipotensif(dehidrasi, kepanasan) Pneumonia asprasi, dysphagia Priapism Do Not Use Riw. alergi risperidone SPECIAL POPULATIONS Renal Impairment Initial-oral : 2 x 0.5 mg/hr ; mgg 1st ; 2 x 1 mg ; mgg 2nd Consta: diberikan ssdh px toleran pd 2 mg/hr – oral. Consta : 25 mg/2 mgg. (lindungi oral 3 mgg) Hepatic Impairment Initial-oral : 2 x 0.5 mg/hr ; mgg 1st ; 2 x 1 mg ; mgg 2nd Consta: diberikan ssdh px toleran pd 2 mg/hr – oral Consta : 25 mg/2 mgg. (lindungi oral 3 mgg) Cardiac Impairment Hati2 resiko orthostatic hypotension ✽ Lansia dg atrial fibrillation, menaikan resiko stroke. Elderly Initial-oral : 2 x 0.5 mg ; naikkan dg 2 x 0.5 mg ; mgg; bila > 2 x 1,5 mg/hr – titrasi tiap mgg. Consta : 25 mg/2 mgg. (lindungi oral 3 mgg) Pregnancy Risk Category C (ada efek buruk pd binatang coba). Pd kehamilan gej. Psikotik bs tambah berat, shg perlu terapi. Data awal: infant yg terpapar resperidone dlm uterus tdk nampak gej. buruk/efek samping. Risperidone may be preferable to anticonvulsant mood stabilizers if treatment is required during pregnancy Efek hyperprolactinemia pd janin blm diketahui. Breast Feeding Tidak diketahui apakah resperidon di sekresi ke asi ✽ Rekomendasi : stop obat atau pemberian susu botol. Ibu menyusui yg minum Resp. harus dimonitor efek sampingnya Children and Adolescents Keamanan dan efektifitasnya blm dpastikan. ✽ Reperidon paling sering dipakai . Aman utk Gg Tingkah Laku Perlu kontrol yg lebih ketat. THE ART OF PSYCHOPHARMACOLOGY Potential Advantages Pada kasus Psikosa dan bipoler yg refrakter thd terapi antipsikotik lain. Untuk terapi pasien/kasus: ✽ Demensia dg ciri agresif. ✽ Gg Tingkah laku pd anak. ✽ Non-compliant patients (Costa) ✽ Hasil terapi akan baik jika kepatuhan ditingkatkan (Costa) Potential Disadvantages Pd px dmn efek hiperprolaktinemi tdk diharapkan ,misal pd: ibu hamil, gadis dg amenore, premenopause tanpa estrogen replacement terapi) Primary Target Symptoms Gejala Positif psikosa Gejala Negatif psikosa Fungsi Kognitif. Unstable mood ( depressi dan mania ) Gejala agresif Pearls Diterima luas utk terapi: 1) Agitasi & agresi pd demensia 2) Gejala perilaku pd anak & remaja Juga dipakai utk kasus2 yg refrakter dan gejala positif bukan skizof. Hanya atipikal Hiperprolaktinemia Hiperprolaktinemia pd wanita dg estrogen rendahosteoprosis Kurang meningkatkan BB Kurang efek sedasinya Pd dosis terapi termurah Resiko Stroke : pd Lansia dg atrial fibrilasi. Resiko DM & dyslipidemia msh kontroversi ES motorik lbh kuat dp antipsikotik lain pd lansia dg Parkinson’s disease or Lewy Body dementia Satu2nya antipsikotik atipikal dg formula inj, Long acting SERTRALINE Nama : Brands : Zoloft , Fridep Generic: Sertalin Class : SSRI (selective serotonin reuptake inhibitor); sering diklasisifikasikan sbg antidepressant, tp sertralin bukanlah sekedar anti depresan Indikasi : 1) Major depressive disorder(MDD) 2) Premenstrual dysphoric disorder (PMDD) 3) Panic disorder 4) Posttraumatic stress disorder (PTSD) 5) Social anxiety disorder (social phobia) 6) Obsessive-compulsive disorder (OCD) 7) Generalized anxiety disorder (GAD) How The Drug Works Memacu Nts serotonin. Memblok serotonin reuptake pump (serotonin transporter) Desensitisasi serotonin recep-tors, tut serotonin 1A receptors Meningkatkan neurotransmisi serotonin. ✽ Memblok dopamine reuptake pump (dopamine transporter), shg meningkatkan neurotrans-misi dopamin dan berkontribusi pd efek terapinya. Berefek mild antagonist actions at sigma receptors How Long Until It Works ✽ Bbrp px mengalami peningkat-an energi atau keaktifan pd awal terapi dimulai. Onset teurapetiknya: tidak segera, sering terlambat 2 – 4 mgg . Jika tidak berefek dlm 6-8 mgg, mungkin perlu naikkan dosis. Atau obat tdk berefek. • Obat bs dilanjutkan selama bbrp tahun utk mencegah kambuhnya gejala. If It Works Tujuan terapi: sembuh dr gejala dan mencegah kambuh. Terapi sering mengurangi/ menghilangkan gejala, tp tidak menyembuhkan krn sering kambuh bila obat dihentikan. Terapi dilanjutkan sp seluruh gejala hilang/sangat berkurang (e.g., OCD, PTSD) Sejak gejala hilang, lanjutlan terapi sp 1 thn (pd episode I depresi) Utk episede ke II. Dst, obat dilanjutkan utk wkt tak terbatas. Pd Gangguan cemas juga bs tak terbatas lamnya pemberian obat If It Doesn’t Work 1) Partial response; gej.sisa depresi : (insomnia, fatigue, gangguan konsentrasi) 2) Nonresponders = treatment-resistant or treatment-refractory 3) “Poop-out” : inisial responnya bagus, kmd kambuh wlp obatnya diteruskan. Pertimbangkan : 1) Obat : naikkan dosis, ganti obat atau tambahkan obat aumentasi. 2) Psikoterapi. 3) Evaluasi : diagnosa lain atau ada komorbiditas dg ( KMU , PgZat dll) 4) Bbrp px nampak obat tidak manjur ok aktivasi dari Ggn Bipoler sbg ggn latent atau yg mendasarinya. Perlu: antidepresan di stop dan diganti mood stabilizer Best Augmenting Combos for Partial Response or TreatmentResistance • Trazodone, especially for insomnia • In the U.S., sertraline (Zoloft) is commonly augmented with bupropion (Wellbutrin) with good results in a combination anecdotally called “Well-loft” (use combinations of antidepressants with caution as this may activate bipolar disorder and suicidal ideation) Mirtazapine, reboxetine, or atomoxetine (add with caution and at lower doses since sertraline could theoretically raise atomoxetine levels); use combinations of antidepressants with caution as this may activate bipolar disorder and suicidal ideation • Modafinil, especially for fatigue, sleepiness, and lack of concentration • Mood stabilizers or atypical antipsychotics for bipolar depression, psychotic depression, treatment-resistant depression, or treatment-resistant anxiety disorders • Benzodiazepines • If all else fails for anxiety disorders, consider gabapentin or tiagabine • Hypnotics for insomnia • Classically, lithium, buspirone, or thyroid hormone SIDE EFFECTS How Drug Causes S.E. Theoretically due to increases in serotonin concentrations at serotonin receptors in parts of the brain and body other than those that cause therapeutic actions (e.g., unwanted actions of serotonin in sleep centers causing insomnia, unwanted actions of serotonin in the gut causing diarrhea, etc.) ✽ Increasing serotonin can cause diminished dopamine release and might contribute to emotional flattening, cognitive slowing, and apathy in some patients, although this could theoretically be diminished in some patients by sertraline’s dopamine reuptake blocking properties • Most side efects are immediate but often go away with time, in contrast to most therapeutic efects which are delayed and are enhanced over time • Sertraline’s possible dopamine reuptake blocking properties could contribute to agitation, anxiety, and undesirable activation, especially early in dosing Notable Side Effects Sexual dysfunction (men: delayed ejaculation, erectile dysfunction; men andwomen: decreased sexual desire, anorgasmia) • Gastrointestinal (decreased appetite, nausea, diarrhea, constipation, dry mouth) • Mostly central nervous system (insomnia but also sedation, agitation, tremors, headache, dizziness) • Note: patients with diagnosed or undiagnosed bipolar or psychotic disorders may be more vulnerable to CNS-activating actions of SSRIs • Autonomic (sweating) • Bruising and rare bleeding • Rare hyponatremia (mostly in elderly patients and generally reversible on discontinuation of sertraline) • Rare hypotension Life Threatening or Dangerous Side Effects Rare seizures • Rare induction of mania and activation of suicidal ideation Weight Gain • Reported but not expected • Some patients may actually experience weight loss Sedation • Reported but not expected • Possibly activating in some patients What To Do About Side Effects Wait • Wait • Wait • If sertraline is activating, take in the morning to help reduce insomnia • Reduce dose to 25 mg or even 12.5 mg until side efects abate, then increase dose as tolerated, usually to at least 50 mg/day • In a few weeks, switch or add other drugs Best Augmenting Agents for Side Effects Often best to try another SSRI or another antidepressant monotherapy prior toresorting to augmentation strategies to treat side efects • Trazodone or a hypnotic for insomnia • Bupropion, sildenafil, vardenafil or tadalafil for sexual dysfunction • Bupropion for emotional flattening, cognitive slowing, or apathy • Mirtazapine for insomnia, agitation, and gastrointestinal side efects • Benzodiazepines for jitteriness and anxiety, especially at initiation of treatment and especially for anxious patients • Many side efects are dose-dependent (i.e., they increase as dose increases, or they reemerge until tolerance re-develops) • Many side efects are time-dependent (i.e., they start immediately upon dosing and upon each dose increase, but go away with time) • Activation and agitation may represent the induction of a bipolar state, especially a mixed dysphoric bipolar II condition sometimes associated with suicidal ideation, and require the addition of lithium, a mood stabilizer or an atypical antipsychotic, and/or discontinuation of sertraline DOSING AND USE Usual Dosage Range • 50–200 mg/day Dosage Forms • Tablets 25 mg scored, 50 mg scored, 100 mg How to Dose • Depression and OCD: initial 50 mg/day; usually wait a few weeks to assess drug efects before increasing dose, but can increase once a week; maximum generally 200 mg/day; single dose • Panic and PTSD: initial 25 mg/day; increase to 50 mg/day after 1 week thereafter, usually wait a few weeks to assess drug efects before increasing dose; maximum generally 200 mg/day; single dose Dosing Tips • All tablets are scored, so to save costs, give 50 mg as half of 100 mg tablet, since 100 mg and 50 mg tablets cost about the same in many markets • Give once daily, often in the mornings to reduce chances of insomnia • Many patients ultimately require more than 50 mg dose per day • Some patients are dosed above 200 mg • Evidence that some treatment-resistant OCD patients may respond safely to doses up to 400 mg/day, but this is for experts and use with caution • The more anxious and agitated the patient, the lower the starting dose, the slower the titration, and the more likely the need for a concomitant agent such as trazodone or a benzodiazepine • If intolerable anxiety, insomnia, agitation, akathisia, or activation occur either upon dosing initiation or discontinuation, consider the possibility of activated bipolar disorder and switch to a mood stabilizer or atypical antipsychotic • Utilize half a 25 mg tablet (12.5 mg) when initiating treatment in patients with a history of intolerance to previous antidepressants DOSING AND USE How to Stop • Taper to avoid withdrawal efects (dizziness, nausea, stomach cramps, sweating, tingling, dysesthesias) • Many patients tolerate 50% dose reduction for 3 days, then another 50% reduction for 3 days, then discontinuation • If withdrawal symptoms emerge during discontinuation, raise dose to stop symptoms and then restart withdrawal much more slowly Pharmacokinetics • Parent drug has 22–36 hour half-life Metabolite half-life 62–104 hours • Inhibits CYP450 2D6 (weakly at low doses) • Inhibits CYP450 3A4 (weakly at low doses) SPECIAL POPULATIONS Renal Impairment • No dose adjustment • Not removed by hemodialysis Hepatic Impairment • Lower dose or give less frequently, perhaps by half Cardiac Impairment • Preliminary research suggests that sertraline is safe in these patients • Treating depression with SSRIs in patients with acute angina or following myocardial infarction may reduce cardiac events and improve survival as well as mood Elderly • Some patients may tolerate lower doses and/or slower titration better • Children and Adolescents • Use with caution, observing for activation of known or unknown bipolar disorder and/or suicidal ideation, and strongly consider informing parents or guardian of this risk so they can help observe child or adolescent patients • Approved for use in OCD • Ages 6–12: initial dose 25 mg/day • Ages 13 and up: adult dosing • Long-term efects, particularly on growth, have not been studied Pregnancy Risk Category C [some animal studies show adverse efects, no controlled studies in humans] • Not generally recommended for use during pregnancy, especially during first trimester • Nonetheless, continuous treatment during pregnancy may be necessary and has not been proven to be harmful to the fetus • At delivery there may be more bleeding in the mother and transient irritability or sedation in the newborn • Must weigh the risk of treatment (first trimester fetal development, third trimester newborn delivery) to the child against the risk of no treatment (recurrence of depression, maternal health, infant bonding) to the mother and child • For many patients this may mean continuing treatment during pregnancy • Neonates exposed to SSRIs or SNRIs late in the third trimester have developed complications requiring prolonged hospitalization, respiratory support, and tube feeding; reported symptoms are consistent with either a direct toxic efect of SSRIs and SNRIs or, possibly, a drug discontinuation syndrome, and include respiratory distress, cyanosis, apnea, seizures, temperature instability, feeding difficulty, vomiting, hypoglycemia, hypotonia, hypertonia, hyperreflexia, tremor, jitteriness, irritability, and constant crying Breast Feeding • Some drug is found in mother’s breast milk • Trace amounts may be present in nursing children whose mothers are on sertraline • Sertraline has shown efficacy in treating postpartum depression • If child becomes irritable or sedated, breast feeding or drug may need to be discontinued • Immediate postpartum period is a high-risk time for depression, especially in women who have had prior depressive episodes, so drug may need to be reinstituted late in the third trimester or shortly after childbirth to prevent a recurrence during the postpartum period • Must weigh benefits of breast feeding with risks and benefits of antidepressant treatment versus nontreatment to both the infant and the mother • For many patients, this may mean continuing treatment during breast feeding THE ART OF PSYCHOPHARMACOLOGY Potential Advantages • Patients with atypical depression (hypersomnia, increased appetite) • Patients with fatigue and low energy • Patients who wish to avoid hyperprolactinemia (e.g., pubescent • Initiating treatment in anxious patients with some insomnia children, girls and women with • Patients with comorbid irritable bowel galactorrhea, girls and women with syndrome unexplained amenorrhea, postmenopausal women who are not taking estrogen replacement therapy) • Patients who are sensitive to the prolactinelevating properties of other SSRIs (sertraline is the one SSRI that generally does not elevate prolactin) Potential Disadvantages • Can require dosage titration Primary Target Symptoms • Depressed mood • Anxiety • Sleep disturbance, both insomnia and hypersomnia (eventually, but may actually cause insomnia, especially short-term) • Panic attacks, avoidant behavior, reexperiencing, hyperarousal