Brand Name Hapytab
Type Tablet (Extended Release)
Weight 50 mg
Generic Desvenlafaxine
Manufacturer Eskayef Pharmaceuticals Ltd.
Price Unit: ৳ 10.00 (3 x 10: ৳ 300.00) Strip: ৳ 100.00

About Hapytab

Hapytab Tablet (Extended Release) (Eskayef Pharmaceuticals Ltd.) is a brand medicine containing the generic Desvenlafaxine . Current listed price in Bangladesh: Unit: ৳ 10.00 (3 x 10: ৳ 300.00) Strip: ৳ 100.00.

Medical information for Hapytab Tablet (Extended Release) 50 mg

Uses, dosage, side effects, and safety details below apply to Hapytab Tablet (Extended Release) 50 mg (generic: Desvenlafaxine). This is general information — consult a doctor before use.

Introduction

Hapytab Tablet (Extended Release) 50 mg the major active metabolite of venlafaxine, is an antidepressant from the serotonin norepinephrine reuptake inhibitor (SNRI) class. Hapytab Tablet (Extended Release) 50 mg may be used to treat major depressive disorder. It is formulated as an extended release tablet.

Uses

Hapytab Tablet (Extended Release) 50 mg is an antidepressant agent and SNRI used for the treatment of major depressive disorders in adults.

Hapytab Tablet (Extended Release) 50 mg is indicated for the treatment of major depressive disorder in adults.

Associated Conditions

  • Hot Flushes
  • Major Depressive Disorder (MDD)

Pharmacodynamics

Hapytab Tablet (Extended Release) 50 mg is a selective serotonin and norepinephrine reuptake inhibitor. It lacks significant activity on muscarinic-cholinergic, H1-histaminergic, or α1-adrenergic receptors in vitro. Hapytab Tablet (Extended Release) 50 mg does not appear to exert activity against calcium, chloride, potassium and sodium ion channels and also lacks monoamine oxidase (MAO) inhibitory activity. It was also shown to lack significant activity again the cardiac potassium channel, hERG, in vitro. Compared to other SNRIs, desvenlafaxine undergoes simple metabolism, has a low risk of drug-drug interactions and does not have to be extensively titrated to reach a therapeutic dose.

Mechanism of Action

Hapytab Tablet (Extended Release) 50 mg, the active metabolite of venlafaxine, is a selective serotonin and norepinephrine reuptake inhibitor. Hapytab Tablet (Extended Release) 50 mg inhibits neurotransmitter reuptake in serotonin, norepinephrine, and dopamine transporters. Hapytab Tablet (Extended Release) 50 mg inhibits serotonin transporters with 10 times the affinity of norepinephrine transporters, and dopamine transporters with the lowest affinity. In vitro, desvenlafaxine has no inhibition of monoamine oxidase, and almost no affinity for muscarinic, cholinergic, H1-histaminergic, and alpha1-adrenergic receptors.

Absorption

Oral bioavailability is approximately 80% and is unaffected by food. Peak plasma concentration is reached in 7.5 hours.

Volume of Distribution

3.4L/kg.

Protein Binding

Protein binding is 30% and this is independent of drug concentration.

Route of Elimination

Hapytab Tablet (Extended Release) 50 mg is mainly excreted in the urine. 45% of the dose is unchanged in the urine, 19% is excreted as a glucuronide metabolite, and 4. No dosage adjustment is necessary for gender, ethnicity, food, or combination with other psychotropics.

Half Life

The mean terminal half life is 11.1 hours and may be prolonged in patients with renal and/or moderate to severe hepatic impairment.

Toxicity

Hapytab Tablet (Extended Release) 50 mg is excreted in breast milk and as a result, nursing mothers must either stop the drug or stop breast feeding depending on the risks and benefit to mother and child.

Food Interactions

  • Avoid alcohol.
  • Avoid St. John's Wort.
  • Take with or without food. The absorption is unaffected by food.

Medical review

Last reviewed: 24 Jul 2026

Medically reviewed by:

This is general information, not personal medical advice. Consult a doctor before taking any medicine.

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