Compare Seroquel vs. Ativan

Head-to-head comparisons of medication uses, side effects, ratings, and more.

Seroquel
(quetiapine)

Ativan
(lorazepam)

Helps control your thoughts and mood. Seroquel (Quetiapine) is good for treating psychosis and mania. Fewer side effects than most antipsychotics, but might be less effective for people over age 40 with schizophrenia.Helps you relax. Ativan (lorazepam) is an effective medicine for occasional or short-term anxiety. It's less likely to have drug interactions, but more likely to cause withdrawal symptoms compared to similar drugs.
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Coupons for Seroquel
Best available price for 30 (25mg) tablets of seroquel
Coupons for Ativan
Best available price for 60 (0.5mg) tablets of ativan
Reviews & ratings
Filter group. All currently selected
Filter group. All currently selected
5Seroquel
Reviews for Seroquel
56%
of people (All ages) say Seroquel is worth it
50%
say it works well
27%
say it's a big hassle
250 reviews
Have you used Seroquel (quetiapine)?
Worth itNot sureNot worth it
Reviews for Ativan
71%
-15% worse vs. Seroquel
51%
-1% worse vs. Seroquel
15%
-12% worse vs. Seroquel
642 reviews
Have you used Ativan (lorazepam)?
Worth itNot sureNot worth it
Side effects
SeroquelAtivan
  • Drowsiness 42%
  • Dizziness 15%
  • Nausea 6%
  • Fatigue 5%
  • Increased appetite 8%
  • Abnormally fast heart beat 8%
  • Vomiting 4%
  • Dry mouth 7%
  • Nasal congestion 4%
  • Weight increased 6%
More Seroquel side effects »
  • Sleepiness 16%
  • Dizziness 7%
  • Weakness 4%
  • Unsteadiness 3%
More Ativan side effects »
How it works
SeroquelAtivan
Seroquel (Quetiapine) is an atypical antipsychotic. Researchers don't know exactly how it works. It seems to change dopamine and serotonin activity in your brain, which affects thoughts and mood.Ativan (lorazepam) is a fast-acting benzodiazepine. It affects areas of the brain that help calm you down. This reduces anxiety and can cause sleepiness.
Type of medication
SeroquelAtivan
Prescription onlyPrescription only
Available as
SeroquelAtivan
  • Pill
  • Extended release
  • Pill
  • Liquid
  • Injection
Used for
SeroquelAtivan
Risk factors for serious side effects
SeroquelAtivan
  • Elderly patients with dementia
  • History of heart problems
  • Drug interactions
  • People with diabetes
  • People with high cholesterol
Detailed Seroquel (quetiapine) risks & warnings »
  • Taking with opioids
  • Taking more than the prescribed dose
  • Taking Ativan (lorazepam) for longer than 4 weeks
  • History of drug abuse
  • Long-term use
Detailed Ativan (lorazepam) risks & warnings »
Pregnancy

Research studies with animals found harmful effects on unborn babies. It hasn’t been properly studied in humans. The benefits might outweigh the risks even if you’re pregnant. Talk with your doctor.

Interactions
SeroquelAtivan
No interactions related info.
  • Less likely to have drug interactions compared to other drugs like it, so it might be a better option if you're taking multiple medications.
Alcohol
SeroquelAtivan
No alcohol related info.
  • Not safe to use with alcohol.
  • Can be habit-forming, so it's not typically used for long-term treatment or for people who've had problems with drug or alcohol abuse.
Food
SeroquelAtivan
  • Seroquel (Quetiapine) can increase your blood sugar and cholesterol. Seroquel (Quetiapine) is more likely to raise your blood sugar and cholesterol compared to other antipsychotic medications. Exercise and eat healthy food to lower your risk.
No food related info.
Sleep
SeroquelAtivan
  • Can cause dizziness, drowsiness, and low blood pressure.
  • Can cause temporary dizziness and drowsiness.
  • Can cause memory problems, drowsiness, dizziness, and confusion.
Weight
SeroquelAtivan
  • Seroquel (Quetiapine) can cause you to gain weight. Seroquel (Quetiapine) is moderately likely to cause weight gain compared to other antipsychotic medications. Exercise and eat healthy food to lower your risk.
  • May cause weight gain and worsen cholesterol or blood sugar.
  • Sometimes causes weight gain, sleepiness, and low blood pressure.
No weight related info.
Upsides and benefits
SeroquelAtivan
  • Effective at relieving psychotic symptoms and manic episodes.
  • Antipsychotic medicines are all about equally effective.
  • Fewer side effects than most antipsychotic medicines.
  • Less likely to cause heart problems compared to some antipsychotics.
  • Compared to other antipsychotics, the least likely to cause Extrapyramidal Symptoms (EPS): Movement disorders that include stiffness, tremor, restlessness, and slow, repetitive, or involuntary movements.
  • Effective at relieving short-term anxiety.
  • Can be used together with antidepressants to manage anxiety disorders. Especially helpful for anxiety symptoms while you wait for an antidepressant to kick in.
  • Less likely to have drug interactions compared to other drugs like it, so it might be a better option if you're taking multiple medications.
Downsides and risks
SeroquelAtivan
  • In studies, less effective for people over age 40 for schizophrenia.
  • Sometimes causes weight gain, sleepiness, and low blood pressure.
  • You might need routine blood tests to check how the medicine is affecting your body.
  • All antipsychotics come with side effects that make them difficult to take. You might need to try a few different medicines until you find one that works for you and that you can tolerate.
  • Can cause memory problems, drowsiness, dizziness, and confusion.
  • Can be habit-forming, so it's not typically used for long-term treatment or for people who've had problems with drug or alcohol abuse.
  • Compared to other similar medicines, Ativan (lorazepam) is more likely to cause withdrawal if you take it for a long time and then suddenly stop.
  • Most people find that Ativan (lorazepam) gets less effective over time.
Tips from our pharmacists for people taking the medication
SeroquelAtivan
  • Takes 4 to 6 weeks to see full effects on thoughts and mood.
  • Can cause dizziness, drowsiness, and low blood pressure.
  • For the first week, avoid activities that require you to be alert.
  • May cause weight gain and worsen cholesterol or blood sugar.
  • Report any unusual thoughts, inability to control muscle movements, or fever and excess sweating to your doctor.
  • Elderly people with dementia shouldn't take it.
  • Can cause temporary dizziness and drowsiness.
  • Take only as much as your doctor prescribes. Taking more than directed or taking this for a long time can cause you to become dependent on it.
  • Not safe to use with alcohol.
  • Use caution or avoid use in older adults.
Learn more
More about SeroquelSide effectsReviews & ratingsAlternativesFDA package insert
Have you used Seroquel (quetiapine)?
Worth itNot sureNot worth it
More about AtivanSide effectsReviews & ratingsAlternativesFDA package insert
Have you used Ativan (lorazepam)?
Worth itNot sureNot worth it