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Norflex vs. Flexeril

Orphenadrine citrate is a muscle relaxer that's used to relieve muscle pain and discomfort. It's often used together with other pain-relieving methods, such as resting and physical therapy. Orphenadrine is available as a tablet that's taken by mouth as well as an injection that's administered by a healthcare provider for certain situations. Side effects can include dry mouth, headache, and drowsiness. Orphenadrine is a generic medication; its brand-name version, Norflex, is no longer available.

• Relief of muscle discomfort from short-term muscle conditions

• Dry mouth
• Sleepiness
• Headache
• Dizziness

• Difficulty concentrating
• Use with caution in people with heart problems

Cyclobenzaprine is a muscle relaxant that helps relieve muscle pain and discomfort. It's often used short term with rest and physical therapy. Immediate-release tablets are for people 15 years and older and are taken a few times a day. Once sold under the brand name Flexeril, the tablets now as a generic and brand name Fexmid. Extended-release capsules are for adults only and are taken once a day. The capsules comes as a generic and brand name Amrix. Cyclobenzaprine can make you sleepy and have dry mouth as side effects.

• Muscle discomfort from short-term muscle or bone injury problems

Immediate-release tablets:

• Drowsiness (39%)
• Dry mouth (27%)
• Dizziness (11%)

Extended-release capsules:

• Dry mouth (14%)
• Dizziness (6%)

• Serotonin syndrome
• Effect on driving and concentration
• Caution use in people with glaucoma or trouble urinating
• Caution use in people with liver problems