Efexor (Venlafaxine) Dosage Guide in Pakistan

Taking the correct dose of Efexor (Venlafaxine) is essential for treatment success. This guide provides information on the adult dose, XR vs IR forms, missed dose, and overdose.

Compiled by the PakVita Editorial Team · AI-assisted drafting with editorial review · Sourced from DRAP, WHO, BNF · Last updated: 2026-06-17

Dosage Guide

Quick Answer

The dose of Efexor (Venlafaxine) is prescribed by the doctor — usually starting at 37.5mg or 75mg and increased as needed. Full effect takes 2–4 weeks. Never stop suddenly — severe discontinuation syndrome can occur. Always take with food.

Dose at a Glance

Adult Dose

As prescribed by your doctor — typically starting at 37.5mg or 75mg once daily

Once daily (XR formulation) or divided doses (IR formulation)

Max: Do not exceed doctor-prescribed daily limit (maximum usually 300mg/day)

Child Dose (Adults only — paediatric use only under specialist psychiatrist)

Not recommended in children/adolescents without specialist guidance

N/A

Missed Dose

If you miss a dose, take it as soon as you remember. If the next dose is close, skip the missed dose — never take a double dose. If several doses have been missed, contact your doctor because sudden discontinuation syndrome can occur.

Overdose

In case of overdose, contact a doctor or emergency room immediately. Venlafaxine overdose can cause rapid heart rate, elevated blood pressure, seizures, and serotonin syndrome. This is a medical emergency.

Efexor (Venlafaxine) Dosage (Kitni leni hai)

Taking the correct dose of Efexor (Venlafaxine) is essential for treatment success. Always follow your doctor's prescription.

Adult Dose (Baalgon ke liye)

As prescribed by your doctor — typically starting at 37.5mg or 75mg
XR formulation: once daily, in the morning with food
IR formulation: divided into 2–3 doses per day

Starting Dose: As prescribed by your doctor (typically 37.5mg–75mg)

Usual Dose: As prescribed — dose is gradually increased as needed

Max Daily Dose: Doctor-prescribed limit (maximum usually 300mg/day)

Child / Adolescent Dose (Bachon ke liye)

Venlafaxine is generally not recommended in children and adolescents — only under specialist psychiatrist supervision.

How to Take (Kaise leni hai)

Always take with food
Swallow XR capsule whole — do not break or chew
Take at the same time every day
Never change the dose without your doctor's guidance

Best Time to Take (Kab leni chahiye)

In the morning with food — reduces insomnia risk and helps maintain a routine

With Food or Empty Stomach (Khali pait ya khane ke baad)

Always take with food — taking on an empty stomach can worsen nausea and GI upset.

Missed Dose (Dose chhoot jaye to kya karein)

Take it as soon as you remember. If the next dose is close, skip the missed dose. Never take a double dose.

Overdose (Zyada Dose)

In case of overdose contact emergency services immediately — rapid heart rate, elevated blood pressure, or seizures may occur.

Dose Summary Table

Patient	Dose	Notes
Adult	As prescribed (typically 75–225mg/day)	Always take with food
Child / Adolescent	Not recommended	Specialist se consult

The information in this guide is for educational purposes only. Always confirm the dose with your doctor or pharmacist.

Frequently Asked Questions

Efexor XR aur Efexor IR mein kya farq hai?

Efexor IR (immediate release) is usually taken once or twice daily while Efexor XR (extended-release) is taken only once daily and has a slightly better side-effect profile (less nausea). The doctor decides which form is better.

Agar dose chhoot jaye to kya karein?

Take it as soon as you remember. If the next dose is close, skip the missed dose — never take a double dose. If several doses have been missed, ask your doctor.

Venlafaxine lene ka sabse behtar waqt kya hai?

Taking it in the morning with food is usually better — this reduces nausea and does not affect sleep. Follow your doctor's guidance.

Kya Venlafaxine khali pait le sakte hain?

No — taking on an empty stomach can worsen nausea and GI side effects. Always take with food.

Kab tak leni chahiye Venlafaxine?

For depression it is usually taken for 6–12 months or longer. The doctor decides how long to continue — never stop on your own.

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Sources

DRAP Registered Products Database — Drug Regulatory Authority of Pakistan
WHO Model List of Essential Medicines, 23rd ed. (2023) — World Health Organization
British National Formulary (BNF) — BMJ Group & Pharmaceutical Press

Medical disclaimer

This page is for educational use only and does not replace professional medical advice. Always confirm diagnosis, dose, and interactions with a qualified doctor or pharmacist before starting or changing any medicine.