Peringatan Keamanan

The anticholinergic actvity of imipramine can produce dry mucous membranes, blurred vision, increased intraocular pressure, hyperthermia, constipation, adynamic ileus, urinary retention, delayed micturition, and dilation of the urinary tract ^L1360.

Central nervous system and neuromuscular effects include drowsiness, lethargy, fatigue, agitation, excitement, nightmares, restlessness, insomnia, confusion, disturbed concentration, disorientation, delusions, and hallucinations.

Effects on the GI tract include anorexia, nausea and vomiting, diarrhea, abdominal cramps, increases in pancreatic enzymes, epigastric distress, stomatitis, peculiar taste, and black tongue.

Rarely agranulocytosis, thrombocytopenia, eosinophilia, leukopenia, and purpura have occured.

Infants whose mothers were receiving tricyclic antidepressants prior to delivery have experienced cardiac problems, irritability, respiratory distress, muscle spasms, seizures, and urinary retention.

Serotonin syndrome can occur when used in conjunction with other pro-serotonergic drugs.

### LD₅₀ Values
Rat
- Oral 250 mg/kg
- Intraperitoneal 79mg/kg
- Subcutaneous 250 mg/kg
- Intravenous 15.9 mg/kg

Mouse
- Oral 188 mg/kg
- Intraperitoneal 51.6 mg/kg
- Subcutaneous 195 ?g/kg
- Intravenous 21 mg/kg

Human range of toxicity is considered to include single dosages greater than 5 mg/kg.

Imipramine

DB00458

small molecule approved

Deskripsi

Imipramine, the prototypical tricyclic antidepressant (TCA), is a dibenzazepine-derivative TCA. TCAs are structurally similar to phenothiazines. They contain a tricyclic ring system with an alkyl amine substituent on the central ring. In non-depressed individuals, imipramine does not affect mood or arousal, but may cause sedation. In depressed individuals, imipramine exerts a positive effect on mood. TCAs are potent inhibitors of serotonin and norepinephrine reuptake. Tertiary amine TCAs, such as imipramine and amitriptyline, are more potent inhibitors of serotonin reuptake than secondary amine TCAs, such as nortriptyline and desipramine. TCAs also block histamine H₁ receptors, α₁-adrenergic receptors and muscarinic receptors, which accounts for their sedative, hypotensive and anticholinergic effects (e.g. blurred vision, dry mouth, constipation, urinary retention), respectively ^A6584. Imipramine has less sedative and anticholinergic effects than the tertiary amine TCAs, amitriptyline and clomipramine. Imipramine may be used to treat depression and nocturnal enuresis in children FDA Label. Unlabeled indications include chronic and neuropathic pain (including diabetic neuropathy), panic disorder, attention-deficit/hyperactivity disorder (ADHD), and post-traumatic stress disorder (PTSD) L1349,L1348,A31900,L1351,L1352,L1353,A31904.

Struktur Molekul 2D

Berat 280.4073

Wujud solid

Peta Jejaring Molekuler

Obat Target Gen Interaksi Enzim Transporter Carrier

Legenda: Obat • Target • Gen • Enzim • (Panah → menunjukkan arah efek / relasi) • Transporter • Carrier

1. Pendahuluan & Konsep

Fitur visualisasi ini dikembangkan menggunakan pendekatan Graph Theory untuk memetakan hubungan polifarmasi dan molekuler. Entitas (Obat, Target, Gen) direpresentasikan sebagai Simpul (Nodes), sedangkan hubungan biologisnya sebagai Sisi (Edges).

2. Sumber Data (Validasi)

Data Obat: Diekstraksi dari elemen drugbank-id dan name pada skema XML DrugBank.
Target Protein: Diambil dari elemen targets/target yang memuat polipeptida sasaran.
Genetik: Disinkronisasi dari sub-elemen gene-name dan varian snp-effects.
Genetik: Jumlah titik node dibatasi pada maksimal 10 (Slice=10) interaksi untuk menghindari tumpukan data.

3. Algoritma Visualisasi

Tata letak grafik menggunakan algoritma Force-Directed Graph (Barnes-Hut). Model fisika ini menerapkan gaya tolak-menolak antar simpul (Gravitasi: -3000) agar tidak tumpang tindih, serta gaya pegas (Spring: 0.04) pada garis penghubung untuk fleksibilitas interaksi.

4. Legenda Visual

Obat Utama (Pusat Analisis)

Target Protein (Mekanisme)

Gen (Faktor Genetik)

Metode ini mendukung analisis Precision Medicine dan evaluasi risiko Drug-Drug Interaction (DDI).

Profil Farmakokinetik

Waktu Paruh (Half-Life) Imipramine has a mean half life of 12 h. Its active metabolite, desipramine has a mean half life of 22.5 h [A31907].

Volume Distribusi Imipramine has a high apparent volume of distribution of 10-20 L/kg [A31907]. The drug is known to accumulate in the brain at concentrations 30-40 times that in systemic circulation.

Klirens (Clearance) Imipramine has a mean clearance of 1 L/h/kg. Its active metabolite, desipramine has a mean clearance of 1.8 L/h/kg [A31907].

Absorpsi

Rapidly and well absorbed (>95%) after oral administration ^A31907. The primary site of absorption is the small intestine as the basic amine groups are ionized in the acidic environment of the stomach, preventing movement across tissues. Bioavailability ranges from 29-77% due to high inter-individual variability. Peak plasma concentration is usually attained 2-6 hours following oral administration. Absorption is unaffected by food.

Metabolisme

Imipramine is nearly exclusively metabolized by the liver ^A31907. Imipramine is converted to desipramine by CYP1A2, CYP3A4, CYP2C19. Both imipramine and desipramine are hydroxylated by CYP2D6 ^A31915. Desipramine is an active metabolite. Minor metabolic pathways include dealkylation to form an imidodibenzyl product as well as demethylation of desipramine to didemethylimipramine and subsequent hydroxylation ^A31907. Less than 5% of orally administered imipramine is excreted unchanged.

Rute Eliminasi

Imipramine is primarily excreted in the urine with less than 5% present as the parent compound ^A31907

Farmakogenomik

9 Varian

CYP2D6 (rs3892097)

Patients with this genotype have reduced metabolism of imipramine.

CYP2D6 (rs35742686)