Many patients come to KetaMed Infusion Center with the same question: “Will I receive IV or IM ketamine, and how do I know which is right for me?”
The answer depends on more than one factor. Neither IV nor IM ketamine is automatically the better choice for every person. Your medical history, symptoms, treatment goals, comfort with IV access, and prior treatment experience all matter.
At KetaMed, we offer IV ketamine therapy, IM ketamine injections, and ketamine troches. Our role is to help you understand the differences and make a recommendation based on your individual situation.
How IV Ketamine Is Administered
IV ketamine is delivered through a small IV line directly into the bloodstream. Because the medication is given through an infusion, the rate can be adjusted, slowed, or paused during treatment when clinically appropriate.
IV administration has 100% bioavailability because the medication enters systemic circulation directly. By comparison, one pharmacokinetic study found that IM ketamine had high bioavailability, approximately 93%, after absorption through muscle tissue (Clements et al., 1982).
At KetaMed, IV sessions generally last 45 to 120 minutes, depending on the treatment plan. IV ketamine is used at KetaMed for both mental health conditions and chronic pain.
How IM Ketamine Is Administered
IM ketamine is delivered through an injection into a muscle, typically the arm or thigh. It does not require an IV line or infusion pump.
Because IM ketamine is absorbed after the injection, the dose cannot be adjusted in the same moment-to-moment way as an IV infusion. For some patients, the simpler format and lack of IV access may feel more comfortable.
Research has examined both IV and IM ketamine for depression, including a small randomized comparison of the two routes. That research does not establish one delivery method as universally better for every patient (Chilukuri et al., 2014).
How KetaMed Helps Patients Choose
The decision is not about choosing the “best” treatment in the abstract. It is about choosing an approach that makes sense for you.
Our clinical team considers the condition being addressed, your medical history, comfort with IV access, prior treatment experience, and treatment goals.
Patients with difficult venous access or a strong preference to avoid an IV may want to discuss IM ketamine. Patients who may benefit from an infusion format with real-time adjustments may want to discuss IV ketamine.
You do not need to arrive at your consultation already knowing which option you want. We will talk through the differences, answer your questions, and explain the reasoning behind any recommendation.
What the Experience May Feel Like
It is normal to want a clear picture of what treatment may feel like before getting started.
With IV ketamine, medication is delivered gradually through an infusion. With IM ketamine, medication is administered through a single injection and absorbed over the course of the session. Individual experiences can vary with either format.
Before treatment begins, we talk through the expected duration, monitoring process, and possible temporary perceptual changes associated with your recommended modality. Our ketamine treatment overview may also help you feel more prepared for that conversation.
Chronic Pain Requires a Different Conversation
At KetaMed, IV ketamine is the only modality used for chronic pain. IM ketamine and ketamine troches are not used for chronic pain treatment at the clinic.
Consensus guidance on IV ketamine for chronic pain notes that evidence varies by pain condition, infusion approach, and dose range (Cohen et al., 2018). Patients considering IV ketamine for pain can learn more about our approach to chronic pain management in Salisbury, MD before discussing options with a provider.
Where Troches Fit
Ketamine troches are an oral option offered by KetaMed for certain mental health treatment plans. They may be considered as an initial option or as a maintenance phase following IV or IM treatment, depending on your needs and clinical recommendation.
Troches are not a direct substitute for IV or IM treatment in every situation, and they are not used by KetaMed for chronic pain care.
Frequently Asked Questions
Is IV or IM ketamine more effective for depression?
There is not one universal answer. Both routes have been studied for depression, including a small randomized comparison of IV and IM ketamine (Chilukuri et al., 2014). Individual clinical considerations typically guide the recommendation.
Does IM ketamine hurt?
IM ketamine requires an injection, so patients may experience brief discomfort at the injection site. Your provider can explain what to expect and answer questions before treatment begins.
Which route is better for chronic pain?
At KetaMed, IV ketamine is the route used for chronic pain. IM ketamine and troches are not used for pain treatment at the clinic.
Can I switch between IV and IM ketamine across treatment sessions?
In some cases, treatment planning may be adjusted based on clinical response, tolerability, and individual needs. Any change in delivery method should be discussed with the treating provider.
How do ketamine troches compare with IV and IM?
Troches are oral lozenges and represent a separate treatment format. KetaMed may use them as an initial or maintenance option for certain mental health care plans, depending on clinical recommendation.
Key Takeaways
- IV ketamine is delivered through an infusion, while IM ketamine is delivered through an injection into a muscle.
- IV allows the infusion rate to be adjusted during treatment; IM does not require IV access.
- Both IV and IM ketamine have been studied for depression, but neither route is universally right for every patient (Chilukuri et al., 2014).
- KetaMed offers IV, IM, and troche-based ketamine options for mental health care plans.
- At KetaMed, IV ketamine is the only modality used for chronic pain.
- Ketamine’s mental health and chronic pain uses are off-label, and results vary by individual (Rosenbaum et al., 2024).
Considering IV or IM Ketamine
Choosing between IV and IM ketamine is a clinical decision, but it should not feel confusing or rushed.
At KetaMed Infusion Center in Salisbury, we take time to understand your history, your concerns, and what you hope to get from treatment. Our goal is to help you make an informed decision about the format that may fit your situation.
Schedule a consultation with KetaMed’s Salisbury clinic to get started.
References
Chilukuri, H., Reddy, N. P., Pathapati, R. M., Manu, A. N., Jollu, S., & Shaik, A. B. (2014). Acute antidepressant effects of intramuscular versus intravenous ketamine. Indian Journal of Psychological Medicine, 36(1), 71–76. https://doi.org/10.4103/0253-7176.127258
Clements, J. A., Nimmo, W. S., & Grant, I. S. (1982). Bioavailability, pharmacokinetics, and analgesic activity of ketamine in humans. Journal of Pharmaceutical Sciences, 71(5), 539–542. https://doi.org/10.1002/jps.2600710516
Cohen, S. P., Bhatia, A., Buvanendran, A., Schwenk, E. S., Wasan, A. D., Hurley, R. W., Viscusi, E. R., Narouze, S., Davis, F. N., Ritchie, E. C., Lubenow, T. R., & Hooten, W. M. (2018). Consensus guidelines on the use of intravenous ketamine infusions for chronic pain from the American Society of Regional Anesthesia and Pain Medicine, the American Academy of Pain Medicine, and the American Society of Anesthesiologists. Regional Anesthesia and Pain Medicine, 43(5), 521–546. https://doi.org/10.1097/AAP.0000000000000808
Rosenbaum, S. B., Gupta, V., Patel, P., & Palacios, J. L. (2024). Ketamine. StatPearls Publishing.
About Our Team
At KetaMed Infusion Center in Salisbury, MD, our clinical team, including Michelle Ridgeway, a board-certified Psychiatric Mental Health Nurse Practitioner, and Dr. Mirza Umair Baig, a board-certified Emergency Medicine physician, approaches each evaluation as a complete clinical picture rather than a single presenting complaint.
We offer IV ketamine, IM ketamine, and ketamine troches for verified mental health conditions, with treatment options selected based on individual history, symptoms, and clinical evaluation.
Medical Disclaimer
The content in this blog post is intended for educational purposes only and does not constitute medical advice, diagnosis, or treatment. Ketamine may be used off-label for mental health and chronic pain conditions. At KetaMed, IV ketamine is used for chronic pain care; IM ketamine and troches are not used for chronic pain treatment. Results vary by individual. Always discuss treatment options, risks, and benefits with a qualified healthcare provider before making medical decisions.