Medically reviewed by Dr. Mitesh Chandarana, DM Neurology | Movement Disorder Specialist, Ahmedabad Last updated: April 2026

You noticed your hands shaking after starting a new medicine. Or perhaps your family member developed a tremor – a rhythmic, uncontrollable shaking after their psychiatrist added a new tablet to their prescription. Your first fear was Parkinson’s disease. But your doctor mentioned these could be drug-induced tremors.

Now you have one pressing question: how long will this last?

This blog answers that question clearly and completely including the recovery timeline, which medicines are most likely to cause tremors, and when you should consult a neurologist in Ahmedabad or Gujarat.

What Are Drug-Induced Tremors?

Drug-induced tremors are involuntary, rhythmic shakings of the hands, arms, head, or voice that appear as a direct side effect of a medicine not because of a brain disease like Parkinson’s.

The tremor happens because certain medicines interfere with the brain chemicals that control smooth, coordinated movement. When those chemicals are disrupted, the muscles receive irregular signals, causing them to shake in a repetitive pattern.

The key difference from Parkinson’s tremor is important: drug-induced tremors typically appear on both sides of the body, occur when you are holding a position (not at rest), and are directly linked to when you started or increased the dose of a medicine.

Many patients in Gujarat come to our clinic worried that their tremor means something permanent and serious. In most cases, when the cause is medicine-related there is real reason for reassurance.

How Long Do Drug-Induced Tremors Last? (The Direct Answer)

The duration depends on which medicine caused the tremor, how long you were taking it, and how your body responds after stopping it.

Here is what the medical evidence shows:

For most common drug-induced tremors: Tremors begin to improve within a few days to a few weeks after the medicine is stopped or the dose is reduced. Many patients notice a clear reduction in shaking within 4 to 8 weeks.

For tremors caused by long-term psychiatric medicines (antipsychotics): Recovery takes longer – typically 4 to 6 months on average. In some cases, especially when the medicine was used for many years, improvement can take up to 12 to 18 months.

For tardive tremor (a specific type from long-term antipsychotic use): This is a more persistent form. Symptoms may linger even after stopping the medicine, sometimes lasting more than 18 months. A small number of patients may have lasting symptoms, which is why expert neurological evaluation is important.

One important point: stopping the medicine does not mean the tremor disappears overnight. Recovery is a gradual process. Most patients see steady, progressive improvement not instant relief.

Important: Never stop any psychiatric medicine or prescription drug on your own. Abrupt stopping can cause serious withdrawal effects. Always consult your doctor or neurologist before making any changes to your medicines.

Which Medicines Commonly Cause Tremors?

Many different types of medicines can cause tremors as a side effect. The most common ones seen in patients visiting our clinic in Ahmedabad include:

Psychiatric medicines:

• Antipsychotics (haloperidol, olanzapine, risperidone) – among the most common causes
• Antidepressants, particularly SSRIs (fluoxetine, sertraline) and SNRIs
• Lithium – used for bipolar disorder; causes tremors even at therapeutic doses
• Valproate / sodium valproate – used for epilepsy and mood disorders

Other medical medicines:

• Amiodarone – a heart medicine
• Bronchodilators like salbutamol – used in asthma inhalers
• Immunosuppressants like cyclosporine and tacrolimus – used after organ transplant
• Metoclopramide – a stomach medicine commonly used in India for nausea

Substances that can worsen existing tremors:

• Caffeine (tea, coffee, energy drinks)
• Alcohol (both use and withdrawal)

If you or your family member started a new medicine and noticed shaking hands or trembling shortly after particularly within the first few weeks – the connection is worth discussing with a doctor.

How to Tell If Your Tremor Is from Medicine or from Parkinson’s Disease

This is one of the most common questions asked at our movement disorder clinic in Ahmedabad, and it is a very important one to answer correctly.

Signs that point to a drug-induced tremor:

• The tremor started after beginning, increasing, or changing a medicine
• The shaking affects both hands equally
• The tremor happens when you hold your arms out (postural tremor), not when your hands are resting in your lap
• There is no other slowing of movement, stiffness, or balance problem
• The tremor improves when the medicine is stopped

Signs that may suggest Parkinson’s disease or another condition:

• The tremor affects one side more than the other
• The shaking is present even when the hand is completely at rest
• There is accompanying stiffness, slowness, or shuffling walk
• The tremor did not start near a medicine change
• The tremor did not improve even after stopping the suspected medicine

Only a proper neurological examination can confirm the diagnosis. Tests like a DaTscan or DAT-SPECT imaging can help distinguish drug-induced parkinsonism from true Parkinson’s disease. If you are unsure, a consultation with a movement disorder specialist is the right step.

What Factors Affect How Quickly the Tremors Resolve?

Not everyone recovers in the same timeframe. Several factors influence how quickly drug-induced tremors improve:

1. Which medicine caused the tremor Short-acting medicines clear the body faster and tremors resolve sooner. Long-acting injectable antipsychotics (depot injections) take much longer to leave the system – recovery can take months.

2. How long you were on the medicine Someone who developed a tremor after 2 weeks on a new medicine will typically recover much faster than someone who has been on the same medicine for 5 years.

3. The dose Higher doses cause more significant disruption to brain chemicals. Higher-dose-related tremors may take longer to settle.

4. Age Older patients are more prone to drug-induced tremors and may take longer to recover, as the brain’s compensatory mechanisms are slower with age.

5. Whether an alternative medicine was given Sometimes the medicine causing tremors cannot be stopped — for example, a psychiatric medicine that is essential for a patient’s stability. In these cases, the dose may be reduced, an alternative medicine given, or a tremor-specific treatment added. The tremor may persist but can often be managed.

6. Whether a second underlying condition exists Some patients have a pre-existing tendency toward tremors (such as essential tremor or early Parkinson’s) that the medicine has unmasked. In these patients, tremor may not fully resolve even after stopping the medicine, because the underlying condition was already present.

What Happens During Recovery? What Should You Expect?

Understanding what the recovery journey looks like helps patients and families stay patient and informed.

Week 1–2 after stopping the medicine: The tremor may not change much yet. The medicine is still clearing from the body. Some patients feel anxious that nothing is improving – this is normal at this early stage.

Week 3–8: Many patients begin to notice a gradual reduction in tremor frequency and intensity. The shaking may become less prominent during certain activities. Sleep-related symptoms often improve first.

Month 2–4: Most patients with mild to moderate drug-induced tremors see significant improvement in this period. Writing, eating, and daily tasks become easier.

Month 4–18: Patients with tardive tremor or long-term antipsychotic use continue to improve slowly. Progress may feel slow but is usually steady. This period requires patience and regular neurological follow-up.

Supportive steps that help during recovery:

• Physiotherapy and hand exercises to maintain function
• Avoiding caffeine, which can worsen any tremor
• Adequate sleep, as fatigue makes tremors worse
• Stress management, since anxiety amplifies tremor intensity
• Regular follow-up with your neurologist to monitor progress

When Should You See a Neurologist in Ahmedabad?

While mild tremors that clearly started with a new medicine can be monitored by your general physician or psychiatrist, there are situations where you should consult a movement disorder specialist:

• The tremor is severe and affecting your daily life – eating, writing, dressing
• The tremor has not improved after 3-4 months of stopping the suspected medicine
• You are unsure whether the tremor is from medicine or from Parkinson’s disease
• The tremor started without any medicine change
• You have other symptoms like stiffness, slowness, or balance problems alongside the tremor
• You are taking multiple medicines and are unsure which one is responsible
• Your family physician wants a specialist opinion before making medicine changes

A movement disorder specialist has specific training in distinguishing the cause of tremors and can guide treatment including whether medicines like propranolol or clonazepam can help manage the tremor during recovery, or whether further tests like DaTscan are needed.

Can Drug-Induced Tremors Be Permanent?

In the majority of cases – No. Drug-induced tremors are largely reversible when identified early and managed correctly.

However, a small number of patients develop what is called tardive tremor – a form of tremor that persists even after the offending medicine is stopped. This is more likely in patients who:

• Used dopamine-blocking medicines (antipsychotics) for many years at high doses
• Are older in age
• Had an unrecognised underlying movement disorder before starting the medicine

Even in these cases, the tremor can often be managed with appropriate neurological treatment. It does not automatically mean Parkinson’s disease but it does require careful, expert evaluation.

The most important message: early recognition makes a significant difference. The sooner a drug-induced tremor is identified and acted upon, the better the outcome.

Frequently Asked Questions

1. Can tremors from medicine go away on their own?
   Yes, in most cases they do – once the medicine is stopped or reduced under medical supervision. However, the timeline varies. Mild tremors may resolve within weeks; tremors from long-term antipsychotic use can take 6 to 18 months. Do not stop any medicine on your own.
   
2. What is the fastest way to stop drug-induced tremors?
   The most effective step is identifying and stopping or reducing the medicine responsible but this must be done under your doctor’s supervision. Additional medicines like propranolol may help manage the tremor during the recovery period. Avoiding caffeine and managing stress also helps.
   
3. Can drug-induced tremors look exactly like Parkinson’s disease?
   Yes – this is called drug-induced parkinsonism, and it can look identical to true Parkinson’s disease. The key differences are timing (linked to medicine start), symmetry (both sides affected), and reversibility (improves after stopping medicine). A specialist evaluation and sometimes a DaTscan is needed to confirm the difference.
   
4. Should I stop my psychiatric medicine if it is causing tremors?
   No, Never stop psychiatric medicines abruptly. Abrupt stopping can cause serious withdrawal or relapse of the psychiatric condition. Speak to your psychiatrist and, if needed, also consult a neurologist to find the safest approach – whether that means a dose reduction, a medicine switch, or adding a tremor management medicine.
   
5. Is lithium tremor permanent?
   Lithium tremor is generally a postural tremor that can be managed. It often improves with dose reduction or splitting the dose across the day. Switching to a slow-release formulation also helps. In patients who must continue lithium, medicines like propranolol can reduce the tremor. It is rarely permanent when managed correctly.
   
6. I have been on antipsychotics for 8 years and developed tremors. How long will my recovery take?
   Long-term antipsychotic use carries a higher risk of tardive tremor, which can persist for 12 months or more after stopping the medicine. In some cases, the tremor may be partially permanent. Expert neurological evaluation is essential – a specialist can assess whether the tremor is truly drug-induced or whether an underlying condition like Parkinson’s needs to be considered.
   
7. Where can I see a tremor specialist in Ahmedabad or Gujarat?
   Dr. Mitesh Chandarana’s clinic at Gurukul, Ahmedabad offers specialist evaluation for tremors, drug-induced movement disorders, and Parkinson’s disease. Patients from across Gujarat are welcome.

Concerned about tremors after a medicine change?

If you or a family member has developed shaking or tremors after starting a new medicine and you are based in Ahmedabad or Gujarat – Dr. Mitesh Chandarana’s clinic is here to help.

As a fellowship-trained movement disorder specialist with over 10 years of experience, Dr. Mitesh can evaluate the cause of your tremor, guide safe medicine adjustments, and create a clear recovery plan.

– Book a consultation at our Ahmedabad clinic →