✅ Active Ingredient Overview Table:

🔬 Active Ingredient (Generic Name):	Mirtazapine
💊 Indication:	Major Depressive Disorder (MDD), Off-Label: Anxiety, Insomnia
🇺🇸 US Brand:	Remeron
🏭 Manufacturer:	Sun Pharmaceutical Industries Ltd. (Founded: 1993)
📦 Packaging:	10 Tablets per Strip
🧪 Strengths:	15 mg, 30 mg
🚚 Delivery Time:	6–15 days

🌿 What is Mirtazapine 15 mg & 30 mg (Mirtaz)?

Mirtazapine is a noradrenergic and specific serotonergic antidepressant (NaSSA) that antagonizes central presynaptic α2-adrenergic inhibitory autoreceptors and heteroreceptors, enhancing norepinephrine and serotonin release. Additionally, it blocks 5-HT2 and 5-HT3 receptors and histamine H1 receptors, contributing to anxiolytic and sedative effects.

The 15 mg dose often serves as an initial therapy in MDD, providing balanced antidepressant efficacy with moderate sedation—beneficial for patients with insomnia. Titrating to 30 mg can enhance mood-lifting effects while still offering tranquilizing benefits. Mirtazapine’s rapid onset and appetite stimulation profile make it suitable for depressed patients experiencing weight loss or poor sleep.

Clinical trials show significant improvement in Hamilton Depression Rating Scale scores by week two, with remission rates up to 40% at 30 mg. Off-label uses include reducing anxiety symptoms and improving sleep architecture without disrupting REM patterns.

For full prescribing details and safety data, consult the FDA label for Remeron, the Drugs.com monograph, and the NHS Medicines A–Z entry.

🧬 Pharmacology & Mechanism of Action

Attribute	Detail
Chemical Formula	C17H19N3
Molecular Weight	265.36 g/mol
Bioavailability	~50%
Metabolism	Hepatic (CYP1A2, CYP2D6, CYP3A4)
Half-Life	~20–40 hours

Mirtazapine’s multi-receptor profile enhances mood and reduces anxiety while promoting sleep and appetite.

💡 Indications & Dosing

Condition	Dose & Administration
Major Depressive Disorder	Start 15 mg at bedtime; may increase to 30 mg after 1–2 weeks based on response
Anxiety Disorders (Off-Label)	15–30 mg at bedtime
Insomnia (Off-Label)	7.5–15 mg at bedtime

Take once daily at bedtime; do not split tablets. Titrate slowly to mitigate sedation and weight gain.

⚠️ Warnings & Side Effects

Common:

Somnolence, increased appetite
Weight gain, dry mouth
Dizziness, constipation

Serious:

Neutropenia, agranulocytosis (rare)
Serotonin syndrome (with other serotonergics)
Orthostatic hypotension

Monitor blood counts periodically. Counsel on dietary changes for weight management and review concomitant serotonergic medications.

🏥 Storage Instructions

Store Mirtaz 15 mg & 30 mg at 20–25°C in original packaging. Protect from moisture and light.

🌐 Availability & Purchasing

USA: Prescription-only (Remeron); branded and generic forms.
UK & EU: Prescription required; generic mirtazapine available.
Australia: Prescription and TGA approval required.

International sourcing may lower costs; ensure regulatory compliance and valid prescription.

🔗 Related Psychotropic Therapies

Sertraline 50 mg – SSRI antidepressant.
Venlafaxine ER 75 mg – SNRI.
Bupropion SR 150 mg – aminoketone antidepressant.

🎥 Educational Video on Mirtazapine

👩‍⚕️ Expert Insight: Dr. Ritu Verma, Psychiatrist

“Mirtazapine’s dual impact on sleep and appetite, combined with rapid antidepressant effects, makes it a valuable option for patients with comorbid insomnia and underweight.”