Compare Ativan vs. Unisom

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

Ativan (lorazepam)

Prescription only
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.

3.8/ 5 average rating with 642 reviewsforAtivan
Treats allergy symptoms and helps you sleep.

Unisom Sleeptabs (Doxylamine) can help you get a good night's sleep, but you can have a hard time waking up if you don't give yourself enough time to sleep.

3.3/ 5 average rating with 585 reviewsforUnisom
  • 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.
  • Works well to help you fall asleep and doesn't make you feel groggy the next morning.
  • Has fewer side effects than prescription sleep aid medications.
  • Available over the counter without a prescription.
  • Not habit-forming like other sleep aids can be.
  • 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.
  • Shouldn't be used unless you have a full night to sleep.
  • You shouldn't drive after taking Unisom Sleeptabs (Doxylamine) until you know how it affects you.
  • Drinking alcohol while taking Unisom Sleeptabs (Doxylamine) isn't recommended.
  • It can increase the risk of falls, so elderly people shouldn't use Unisom Sleeptabs (Doxylamine).
Used for
Dosage forms
  • Pill
  • Liquid
  • Injection
  • Pill
  • Chewable tablet
  • Liquid
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Have you used Ativan (lorazepam)?

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585 reviews so far
saidit'sworth it
saiditworked well
saidit'sa big hassle

Have you used Unisom Sleeptabs (Doxylamine)?

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Side effects
4possible side effects
  • Sleepiness
  • Dizziness
  • Weakness
  • Unsteadiness
See more detailed side effects
The Unisom Sleeptabs (Doxylamine) FDA package insert doesn’t have numbers about how common side effects are.
Risks and risk factors
  • Severe sedation with opioid use
    • Taking with opioids
  • Tolerance and dependence
    • Taking more than the prescribed dose
    • Taking Ativan (lorazepam) for longer than 4 weeks
    • History of drug abuse
  • Withdrawal
    • Long-term use
  • Driving impairment
    • Alcohol
    • Taking other medicines that make you less alert
  • Memory problems
See more detailed risks and warnings
  • Overdosage
    • Using other drugs with similar ingredients
  • Increased side effects
    • Age 65 years or older
  • Driving impairment
    • Taking with alcohol
    • Taking other medicines that make you less alert
  • Hyperactivity
    • Children age 6 years or younger
  • Trouble urinating
    • Enlarged prostate
    • History of bladder problems
  • Vision changes
    • Glaucoma
  • Breastfeeding
    • Nursing mothers
See more detailed risks and warnings