Compare Valium vs. Klonopin

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

Valium
(diazepam)

Klonopin
(clonazepam)

Helps you relax. Valium (Diazepam) is okay for occasional or short-term use (up to 4 weeks) for anxiety and for pain and sleeplessness from muscle spasm. Less severe withdrawal symptoms compared to similar drugs.Controls seizures and helps you relax. Klonopin (Clonazepam) is okay for occasional or short-term use (up to 4 weeks) for anxiety, and to treat seizures. Less severe withdrawal symptoms compared to similar drugs.
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Coupons for Valium
Best available price for 60 (5mg) tablets of diazepam
Coupons for Klonopin
Best available price for 60 (0.5mg) tablets of clonazepam
Reviews & ratings
Filter group. All currently selected
Filter group. All currently selected
5.15Valium
Reviews for Valium (diazepam)
70%
of people (All ages) say Valium (diazepam) is worth it
53%
say it works well
15%
say it's a big hassle
976 reviews
Have you used Valium (diazepam)?
Worth itNot sureNot worth it
Reviews for Klonopin (clonazepam)
70%
Same vs. Valium (diazepam)
52%
-1% worse vs. Valium (diazepam)
14%
+1% better vs. Valium (diazepam)
767 reviews
Have you used Klonopin (clonazepam)?
Worth itNot sureNot worth it
Side effects
ValiumKlonopin

The Valium FDA package insert doesn’t have numbers about how common side effects are.

More about Valium side effects »
  • Drowsiness 50%
  • Lack of muscle coordination 30%
  • Behavior problems 25%
  • Ear, nose, or throat infection 6%
  • Fatigue 5%
  • Low mood disorder 6%
  • Dizziness 1%
  • Vaginal inflammation 3%
  • Sinus inflammation 1%
  • Inflammation inside the nose 2%
More Klonopin side effects »
How it works
ValiumKlonopin
Valium (Diazepam) is a fast-acting benzodiazepine. It affects neurotransmitters in the brain and calms the nervous system. This reduces anxiety and muscle spasms, and causes sleepiness.Klonopin (Clonazepam) is a fast-acting benzodiazepine. It affects neurotransmitters in the brain and calms the nervous system. This reduces anxiety and muscle spasms, and causes sleepiness.
Type of medication
ValiumKlonopin
Prescription only
Prescription only
Available as
ValiumKlonopin
  • Pill
  • Liquid
  • Rectal gel
  • Pill
  • Dissolving tablet
Used for
ValiumKlonopin
Risk factors for serious side effects
ValiumKlonopin
  • Taking more than the prescribed dose
  • Taking longer than 4 weeks
  • History of drug abuse
  • Long-term use
  • Alcohol
Detailed Valium (diazepam) risks & warnings »
  • Taking more than the prescribed dose
  • Taking longer than 4 weeks
  • History of drug abuse
  • Long-term use
  • Alcohol
Detailed Klonopin (clonazepam) risks & warnings »
Pregnancy

Research studies with real people found harmful effects on unborn babies, but the benefits might outweigh the risks even if you’re pregnant. Talk with your doctor.

Research studies with real people found harmful effects on unborn babies, but the benefits might outweigh the risks even if you’re pregnant. Talk with your doctor.

Alcohol
ValiumKlonopin
  • 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.
  • 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.
  • Not safe to use with alcohol.
Kidneys and liver
ValiumKlonopin
  • Processed by the liver, so might not be the best choice if you have liver problems.
No kidneys and liver related info.
Sleep
ValiumKlonopin
  • Can cause memory problems, drowsiness, dizziness, and confusion.
  • Can cause temporary dizziness and drowsiness.
  • Can cause memory problems, drowsiness, dizziness, and confusion.
  • Can cause dizziness, drowsiness, and salivation.
Upsides and benefits
ValiumKlonopin
  • Effective at relieving short-term anxiety and sleeplessness.
  • Can be used together with antidepressants to manage anxiety disorders. Especially helpful for anxiety symptoms while you wait for an antidepressant to kick in (it can take several weeks).
  • Effective at relieving muscle spasms caused by a variety of conditions.
  • Less severe withdrawal symptoms compared to other benzodiazepines.
  • Effective at relieving short-term anxiety and sleeplessness.
  • Can be used together with antidepressants to manage anxiety disorders. Especially helpful for anxiety symptoms while you wait for an antidepressant to kick in (it can take several weeks).
  • Can be used alone or with other medicines to treat seizures.
  • Less severe withdrawal symptoms compared to other benzodiazepines.
Downsides and risks
ValiumKlonopin
  • Processed by the liver, so might not be the best choice if you have liver problems.
  • 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.
  • Most people find that it gets less effective over time.
  • 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.
  • Most people find that it gets less effective over time.
Tips from our pharmacists for people taking the medication
ValiumKlonopin
  • Good for short-term relief of anxiety symptoms.
  • Starts working in 30 minutes when swallowed.
  • Helpful with muscle spasms.
  • Can cause temporary dizziness and drowsiness.
  • Addictive. Long-term use can cause dependence or abuse.
  • Not safe to use with alcohol.
  • For the first week, avoid activities that require you to be alert.
  • Can cause dizziness, drowsiness, and salivation.
  • Report any confusion or inability to control muscle movements to your doctor.
  • Not safe to use with alcohol.
Learn more
More about ValiumSide effectsReviews & ratingsAlternativesFDA package insert
Have you used Valium (diazepam)?
Worth itNot sureNot worth it
More about KlonopinSide effectsReviews & ratingsAlternativesFDA package insert
Have you used Klonopin (clonazepam)?
Worth itNot sureNot worth it