baclofen vs carisoprodol
Side-by-side comparison of baclofen and carisoprodol Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.
Lioresal, Gablofen
Soma
Baclofen is a muscle relaxant. It helps to relieve muscle spasms and stiffness.
Carisoprodol is a muscle relaxant. It helps relieve discomfort from painful muscle and bone problems.
Baclofen is used to treat muscle spasticity (stiffness) caused by multiple sclerosis. It can help with muscle spasms, pain, and rigidity. It may also help people with spinal cord injuries or diseases. Baclofen is not for muscle spasms caused by arthritis or other rheumatic problems.
Carisoprodol treats the pain and discomfort caused by acute muscle and bone conditions. It is for short-term use, usually up to two or three weeks. This is because there is no proof it works for longer periods, and most muscle and bone problems don't last long.
Baclofen works by affecting the nerves in your spinal cord. It decreases the signals that cause your muscles to tighten. This helps to relieve muscle stiffness and spasms.
Carisoprodol works in the brain and spinal cord to relax muscles. It blocks pain signals between your nerves and brain. This helps to reduce muscle spasms and pain.
- • Drowsiness
- • Dizziness
- • Weakness
- • Nausea
- • Drowsiness (13-17% of users)
- • Dizziness (7-8% of users)
- • Headache (3-5% of users)
- Tiredness 6,148
- Pain 5,657
- Medicine not working 5,452
- Fall 5,421
- Feeling sick to your stomach 4,595
- Pain 1,615
- Suicide 1,458
- The medicine didn't work 1,317
- Feeling sick to your stomach 1,280
- Headache 1,092
If you stop taking baclofen suddenly, you may experience withdrawal symptoms. Talk to your doctor before stopping this medication.
Carisoprodol can be habit-forming. Do not take it if you have a history of drug abuse. Stopping it suddenly after long-term use can cause withdrawal symptoms like insomnia, vomiting, and hallucinations. Carisoprodol can also cause seizures, especially if you take too much or mix it with other drugs or alcohol. This medicine can make you sleepy and impair your ability to drive or operate machinery.
Tell your doctor if you are pregnant, plan to become pregnant, or are breastfeeding. It is not known if baclofen will harm your unborn baby. Baclofen can pass into breast milk.
Talk to your doctor if you are pregnant or plan to become pregnant. Studies in animals showed some negative effects on the baby at high doses. Carisoprodol passes into breast milk. One report noted sedation in an infant. Talk to your doctor about the risks and benefits of breastfeeding while taking this medicine.
How to Read This baclofen vs carisoprodol Comparison
baclofen is classified in the GABA-B Agonist (Muscle Relaxant) drug class, while carisoprodol sits within the Centrally Acting Muscle Relaxant class. Drugs from different classes work through distinct mechanisms, so a head-to-head comparison illustrates trade-offs rather than equivalence. Both drugs are prescription-only, so a licensed provider must authorize use.
Adverse event totals above are pulled from the FDA's Adverse Event Reporting System (FAERS). For these top-ranked reactions alone, baclofen has 27,273 submissions while carisoprodol has 6,762. Those figures reflect cumulative reporting volume — not per-patient risk — so older, widely dispensed drugs typically look worse on count alone. No direct interaction between these two drugs is listed in our FDA-derived dataset, though co-prescription still warrants pharmacist review. Serious warnings, pregnancy guidance, and contraindications can differ even when indications overlap.
A table cannot substitute for clinical judgment. Effectiveness, tolerability, drug-drug interactions with your other medications, kidney and liver function, pregnancy status, insurance formulary, and price all feed into a decision that only a licensed prescriber can make responsibly. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This page is for educational purposes only, is not medical advice, and should not be used to self-switch between baclofen and carisoprodol — always consult your physician or pharmacist first.
Important: This comparison is for informational purposes only. Drug effects vary between individuals. Always consult your doctor or pharmacist for personalized medical advice.