Can You Take Flexeril And Tramadol Together?

In our latest question and answer, our pharmacist discusses whether or not there is a drug interaction between tramadol and Flexeril (cyclobenzaprine).

Question

Is it possible to take tramadol and Flexeril (cyclobenzaprine) together? I was prescribed both but by different doctors.

Asked by Newkid On Jun 24, 2022

Answered by
Medical Content Reviewed By HelloPharmacist Staff

Published Jun 24, 2022
Last updated Apr 18, 2024

Key points

  • It is not recommended to take tramadol and Flexeril together because of their additive effects on potentially slowing your breathing rate as well as increasing the chance of a bowel obstruction.
  • If you need to take a pain reliever, consider taking something like Tylenol or ibuprofen while you are taking Flexeril.

You should avoid taking tramadol and Flexeril together unless specifically directed by your doctor as the drugs have a potentially significant interaction.

What Are Tramadol And Flexeril?

Tramadol (brand name Ultram) is a pain reliever, technically classified as an opioid medication that is stronger than Tylenol or ibuprofen but not as strong as morphine or oxycodone. it works on both opioid receptors and also increases serotonin levels.

Flexeril (cyclobenzaprine) is a muscle relaxant that is used for short-term (2-3 weeks) treatment of muscle spasms along with rest and physical therapy.

The Interaction

First and foremost, both tramadol and Flexeril are sedating, and combined use increases the severity of this side effect.

More importantly, the use of both together, especially at high doses, may increase your risk of respiratory depression, which is slow or shallow breathing.

This can cause a lower level of oxygen in your body which has potentially serious outcomes. Sedation or sleepiness is often the first sign/symptom that respiratory depression might be occurring. Taking these medications together can also cause CNS depression, or altered brain activity, which can cause:

  • Slower rate of breathing
  • Slower heart rate

A slower breathing rate is especially a concern when taking these two medications together because it can happen from two different mechanisms (respiratory depression and CNS depression).

Lastly, the combination of Tramadol and Flexeril can also increase your risk of bowel obstruction (a block in your digestive tract).

They both affect the muscles in your digestive tract that help in the digestion and defecation processes. Slowing this process can cause paralysis of your gut muscles and lead to blockage, which is a serious concern.

How To Manage

As both medications are relatively short-acting (~4-12 hours per dose), they could potentially be dosed on the same day, just not at the same time.

I also want to point out that there are clinical situations where these drugs can be used together.

If use together is necessary, it is prudent to use the lowest dose and shortest duration necessary to achieve treatment goals. Side effects, such as sedation, respiratory depression, urinary retention, and constipation should be monitoed.

Final Words

Thanks again for reaching out! Please let us know if anything else comes up!

References

About the Pharmacist

Dr. Brian Staiger, PharmD

Dr. Brian has been practicing pharmacy for over 13 years and has wide-ranging experiences in many different areas of the profession. From retail, clinical, program development, and administrative responsibilities, he's your knowledgeable and go-to source for all your pharmacy and medication-related questions! Dr. Brian Staiger also has herbalist training and educational certificates in the field of medical ethnobotany. Feel free to send him an email at [email protected]! You can also connect with Dr. Brian Staiger on LinkedIn.

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