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Mirtazep (Mirtazapine) Side Effects in Pakistan

Mirtazep (Mirtazapine) side effects — a complete guide. From common effects to serious warnings — everything you need to know is on this page. If any serious symptom appears, see a doctor immediately.

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

Side Effects

Quick Answer

Common side effects of Mirtazep (Mirtazapine) include drowsiness, increased appetite and weight gain, dry mouth, and dizziness. Serious effects include suicidal thoughts and rare agranulocytosis. See a doctor immediately if suicidal thoughts, fever and sore throat (agranulocytosis), or severe allergic reaction occur.

Side Effects at a Glance

Common

  • Drowsiness / sedation (neend aana)
  • Increased appetite and weight gain
  • Dry mouth (muh sukhna)
  • Dizziness (chakkar aana)
  • Constipation (qabz)

Serious — See a Doctor

  • Suicidal ideation — especially in the first weeks of treatment and in patients under 25 years of age
  • Severe allergic reaction / Stevens-Johnson Syndrome
  • Agranulocytosis / bone marrow suppression
  • Serotonin syndrome

When to See a Doctor Immediately

  • Suicidal thoughts or thoughts of self-harm — Umang Helpline: 0317-4288665
  • Severe agitation or restlessness (akathisia)
  • Fever, sore throat, or mouth ulcers
  • Severe allergic reaction: rash, facial swelling, difficulty breathing
  • Muscle tightening, high fever, agitation (serotonin syndrome)
  • Seizure or epileptic episode

Mirtazep (Mirtazapine) Side Effects (Nuksanat)

Mirtazep (Mirtazapine) is generally safe at prescribed doses — but like any medicine, it can cause side effects in some patients.

Common Side Effects (Aam Nuksanat)

  • Drowsiness / sedation (neend aana) — often therapeutically useful for insomnia in depression
  • Increased appetite and weight gain
  • Dry mouth
  • Dizziness (chakkar aana)
  • Constipation (qabz)

These side effects are usually mild. If they persist, inform your doctor.

Serious Side Effects (Sanjeedah Nuksanat)

  • Suicidal ideation — especially in the first weeks of treatment — contact a doctor or emergency immediately; Umang Helpline: 0317-4288665
  • Severe allergic reaction / Stevens-Johnson Syndrome — seek emergency help immediately
  • Agranulocytosis / bone marrow suppression (rare) — fever, sore throat, mouth ulcers — get CBC done and see a doctor immediately
  • Serotonin syndrome — muscle tightening, high fever, agitation — emergency immediately

When to See a Doctor (Kab Doctor Se Milna Zaroori Hai)

  • Suicidal thoughts or thoughts of self-harm — Umang Helpline: 0317-4288665
  • Severe agitation or restlessness
  • Fever, sore throat, or mouth ulcers (agranulocytosis)
  • Severe allergic reaction
  • Muscle tightening, high fever (serotonin syndrome)
  • Seizure or epileptic episode

Reporting Side Effects

If you notice any unexpected side effect, report it on the DRAP pharmacovigilance portal: https://www.dra.gov.pk/pharmacovigilance

Side Effects Summary Table

TypeSide EffectAction
CommonDrowsinessMonitor — often therapeutic
CommonWeight gain / appetiteInform your doctor
CommonDry mouthMonitor
CommonDizzinessMonitor
SeriousSuicidal ideationImmediately contact doctor / Umang 0317-4288665
SeriousAgranulocytosisImmediate CBC + doctor
SeriousSerotonin syndromeEmergency immediately

The information in this guide is for educational purposes only. For any side effect, contact your doctor or pharmacist.

Frequently Asked Questions

Mirtazapine ke sabse common side effects kya hain?

The most common side effects of Mirtazapine include drowsiness, increased appetite and weight gain, dry mouth, dizziness, and constipation. The sedating effect is often therapeutically useful. If these effects continue, inform your doctor.

Kya Mirtazapine se khudhkushi ke khayalat aa sakte hain?

Yes — antidepressants can increase the risk of suicidal thoughts especially in the first weeks of treatment and in patients under 25 years of age. Family members should also remain alert. If this is felt — contact a doctor or the Umang Helpline (0317-4288665) immediately.

Mirtazapine se wazan kyun barh jaata hai?

Mirtazapine blocks H1 histamine receptors which increases appetite — weight gain is a common side effect. Discuss with your doctor if weight becomes a concern.

Kya Mirtazapine se agranulocytosis ho sakta hai?

Yes, in rare cases Mirtazapine can cause bone marrow suppression and agranulocytosis. If fever, sore throat, or mouth ulcers appear — see a doctor immediately and get a CBC test done.

Mirtazapine ke side effects band karne par theek ho jaate hain?

Common side effects generally resolve on reducing or stopping the dose. However, do not stop the dose yourself — taper only under doctor's guidance.

Brand alternatives, same-class options, and other medicines used for the same conditions as Mirtazep Tablet.

Sources

  1. DRAP Registered Products Database Drug Regulatory Authority of Pakistan
  2. WHO Model List of Essential Medicines, 23rd ed. (2023) World Health Organization
  3. 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.