Comparing Lorazepam vs Mirtazapine

View side-by-side comparisons of medication uses, ratings, cost, side effects and interactions.
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Lorazepam

Mirtazapine

Lorazepam may be used for the treatment of anxiety or as a preoperative medicine. It is potentially addictive and a withdrawal syndrome may be experienced on discontinuation. Sedation is a common... View more

Mirtazapine may be used in the treatment of depression; however, its use may be limited by its prominent sedative effects. Prescribed for Depression, Major Depressive Disorder. May also be prescribed... View more

Prescription only

Ratings & Reviews

View all 916 reviews

View all 1671 reviews

Drug Class

Tetracyclic antidepressants

Side Effects

Commonly reported side effects include: sedated state.

See the full lorazepam side effects document.

Commonly reported side effects include: severe sedation, constipation, drowsiness, increased serum cholesterol, weight gain, fatigue, insomnia, increased appetite, xerostomia, and decreased appetite.

See the full mirtazapine side effects document.

Pricing and Coupons

* Prices are without insurance

Quantity	1 tablet
Dosage	1 mg
Per Unit^*	$9.75
Cost^*	$9.75

View all lorazepam prices

Quantity	100 each
Dosage	30 mg
Per Unit^*	$0.27 - $1.19
Cost^*	$27.05 - $118.95

View all mirtazapine prices

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Generic Availability

Yes (this medicine)

Dosage Form(s) Available

Injectable solution
Oral concentrate
Oral tablet

Oral tablet
Oral tablet, disintegrating

Brand Names

Ativan, Ativan Injection, Lorazepam Intensol, Loreev XR Remeron, Remeron SolTab

Half Life

The half-life of a drug is the time taken for the plasma concentration of a drug to reduce to half its original value.

25 hours

40 hours

CSA Schedule**

View glossary of terms.

Some potential for abuse

Has a low potential for abuse relative to those in schedule 3. It has a currently accepted medical use in treatment in the United States. Abuse may lead to limited physical dependence or psychological dependence relative to those in schedule 3.

Not a controlled drug

Is not subject to the Controlled Substances Act.

Pregnancy Category

Category D Positive evidence of risk

See the full Pregnancy Warnings document.

Category C Risk cannot be ruled out

See the full Pregnancy Warnings document.

Drug Interactions

A total of 372 drugs are known to interact with lorazepam:

29 major drug interactions (157 brand and generic names)
311 moderate drug interactions (1220 brand and generic names)
32 minor drug interactions (220 brand and generic names)

A total of 604 drugs are known to interact with mirtazapine:

127 major drug interactions (467 brand and generic names)
474 moderate drug interactions (1809 brand and generic names)
3 minor drug interactions (14 brand and generic names)

Alcohol/Food/Lifestyle Interactions

Alcohol can increase the nervous system side effects of LORazepam such as dizziness, drowsiness... View more

Alcohol can increase the nervous system side effects of mirtazapine such as dizziness, drowsiness... View more

Disease Interactions

First Approval Date

September 30, 1977

June 14, 1996

WADA Class

View World Anti-Doping Agency classifications.

N/A

More Information

Consumer Resources

Professional Resources

Related Treatment Guide

** The Controlled Substances Act (CSA) schedule information displayed applies to substances regulated under federal law. There may be variations in CSA schedules between individual states.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

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