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Over 7 million Americans struggle with essential tremor.1

Essential tremor is a common neurological condition that causes an uncontrollable shaking, often in the hands. It can deeply impact daily life, making everyday activities such as eating, dressing, or enjoying a cup of coffee difficult.

When medications aren’t meeting your needs, TAPS* therapy, as delivered by the Cala kIQ™ System, may be the next step. It can safely be used with common medications — in the moments when you need relief from tremor.

Most people who use Cala TAPS therapy maintain relief for over an hour after therapy1.

*TAPS stands for transcutaneous afferent patterned stimulation.

Learn how Cala TAPS therapy works

The Cala kIQ™ System is for people with action tremor of the hand.

Action tremor of the hand occurs when the hand shakes during activities, such as writing or drinking. It can also happen while your hands are holding a posture, such as outstretched in front of your body.

Most people with action tremor of the hand have essential tremor. Some people with Parkinson’s disease may also have action tremor of the hand — although it is less common.

Action tremor of the hand is different from resting tremor. A rest tremor is more common in people with Parkinson’s disease, and describes the shaking that happens when you are not moving or holding a posture, such as when your hands are relaxing on your lap.

Cala TAPS Therapy can safely be used early in your treatment plan

Essential tremor is a neurodegenerative condition, which means it could worsen over time. Some people with essential tremor may find that eventually, their tremor requires invasive surgical options, such as deep brain stimulation, in order to relieve the burden on daily life.

It is important to speak with your neurologist early about treatment options — particularly if medications are causing side effects or are not as effective as hoped.


Americans struggle with action tremors of the hand

1 in 3

People with essential tremor discontinue medications due to lack of benefit2


People experience tremor reduction with a complete 40-minute session of Cala TAPS therapy3

1.Louis ED, Rohl B, Rice C. Defining the Treatment Gap: What Essential Tremor Patients Want That They Are Not Getting. Tremor Other Hyperkinet Mov (N Y). 2015 Aug 14;5:331. doi: 10.7916/D87080M9. PMID: 26317044; PMCID: PMC4548969.

2. Gupta et al. Clinical Parkinsonism & Related Disorders, 2021. DOI:

3. Isaacson SH, et al. Prospective Home-use Study on Non-Invasive Neuromodulation Therapy for Essential Tremor. Tremor J. 2020;10:29. SD 138min; median 60 min. As measured by Cala device following three months of repeated home use in 205 patients with essential tremor who completed the study. Many participants were also taking medication for their tremor and it was difficult to assess the effect of the device compared to medication.


Real people. Real results.

Thousands of people are using Cala TAPS therapy. Hear from real users how it has made a difference.

Cala has given me the ability to go back out in the world... I have the ability to go to meetings again. I am politically active.


Cala user

Cala therapy has made such a difference in my life. I can now hold my book steady as I read. I can cut vegetables with more control, and the best part is being able to eat and drink without it spilling all over me.


Ministry volunteer and grandmother

It was a no-brainer. I went with the Cala therapy, and since then, my tremors have gradually improved, and today I feel near-normal again.


Retired Air Force veteran

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Coverage for Cala TAPS therapy

The Cala kIQ System is reimbursed by the VA and many major commercial and Medicare Advantage plans. We work with you to understand your benefits and out-of-pocket costs, so you can make an informed decision about how Cala’s therapy fits into your treatment plan.

Learn more about Medicare coverage

Learn more about VA benefits

Learn more about other reimbursement

Answer a few questions and find out if the Cala kIQ System could work for you.

Try the Cala kIQ™ System

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