The phrase "it stopped working" can mean several different things, and they have different fixes. Before assuming the drug has failed, it's worth sorting out which of these is actually happening — something a doctor can help you do.

This distinction matters because the most common culprit — tremor progression — is also the most treatable one. Often the fix is not abandoning propranolol but adjusting it, or adding to it.

Before concluding the medication has failed, it's worth an honest look at what else changed, because several everyday things worsen essential tremor and are fixable without touching the propranolol. The most common ones:

• Caffeine — a rise in coffee, tea, energy drinks, or pre-workout can push a controlled tremor back into view.
• Stress and anxiety — emotional arousal amplifies action tremor, so a stressful stretch at work or home can look exactly like the drug wearing off.
• Sleep — fatigue reliably makes tremor worse; a run of poor nights matters more than people expect.
• New medications — some drugs, including certain asthma inhalers, stimulants, and antidepressants, can aggravate tremor; if a new prescription lines up with the change, mention it.
• Thyroid or other medical changes — an overactive thyroid produces its own tremor that can stack on top of essential tremor.

If one of these is the real driver, addressing it can bring you back to baseline without any change to your medication at all — which is why it's the first thing to check, not the last.

The single most important rule here is a safety one.

At that review, the first lever is usually the dose. Propranolol for tremor is often titrated upward within a safe range, and a modest increase brings some people back to good control. Your doctor will balance that against blood pressure, heart rate, asthma, and other conditions — which is exactly why this isn't a change to make alone.

If adjusting propranolol isn't enough, the next options are well established. The other first-line drug, primidone, is frequently tried next — either in place of propranolol or alongside it. Its effectiveness for essential tremor was established in a double-blind controlled study decades ago (Findley & Cleeves, JNNP, 1985), and both propranolol and primidone are rated Level A (established as effective) in the American Academy of Neurology's evidence-based guideline (Zesiewicz et al., Neurology, 2011). Combining them sometimes works when neither is quite enough on its own.

Beyond the first line, second-line medications such as topiramate and gabapentin may be added; the AAN rates several of these as Level B (probably effective) (Zesiewicz et al., Neurology, 2011). None of this is trial-and-error done blindly — the choice is guided by your other health conditions, since a drug that's ideal for one person may be a poor fit for another. Finding the right medication or combination can take a few adjustments, and each is typically started low and increased gradually to balance tremor control against side effects — so it's worth giving a new plan a fair trial before judging it, rather than expecting an immediate result. A review of how to manage essential tremor lays out this stepwise approach from first-line drugs through to procedures (Hopfner & Deuschl, Neurotherapeutics, 2020).

It's important to know that medication doesn't work for everyone, and that this is common rather than a personal failure. First-line drugs are ineffective in an estimated 25% to 55% of people with essential tremor (Bruno et al., Cochrane, 2017). For this medication-refractory group, two procedures are the established next tier:

• MRI-guided focused ultrasound (MRgFUS) — an incisionless procedure that uses focused sound waves to treat the tremor-generating area of the brain, typically on one side. A randomized controlled trial found it significantly reduced hand tremor in people with moderate-to-severe essential tremor (Elias et al., NEJM, 2016).
• Deep brain stimulation (DBS) — surgically implanted electrodes that deliver ongoing stimulation, adjustable over time and usable on both sides. It is established for medically refractory essential tremor and significantly improves tremor, though for some people its effect can diminish over the years as the brain habituates to the stimulation — something worth discussing with your team when weighing it (Paschen et al., Neurology, 2019).

Both target tremor that hasn't responded to medication, and both can substantially reduce — though not always completely eliminate — hand tremor. They differ in important ways: focused ultrasound involves no incision and no implant but is generally done on one side, while DBS is a surgical implant that can be adjusted over time and applied to both sides. Each has its own candidacy criteria, trade-offs, and recovery considerations, and both are decisions made with a neurologist — usually a movement-disorder specialist — not a first resort. The point for anyone whose propranolol has stopped working is simply that running out of medication options is not the same as running out of options.

Whatever is happening with your medication, non-drug approaches can reduce day-to-day tremor impact and work independently of any drug. Reducing tremor triggers — managing stress, cutting back caffeine, protecting sleep — genuinely helps, since each of these can worsen tremor (Shanker, BMJ, 2019). Adaptive tools for eating, drinking, and writing lower the difficulty of specific tasks by reducing how much precision each one demands, and an occupational therapist can match those strategies and aids to your particular tremor. These physical approaches sit comfortably alongside whatever medical treatment you and your doctor land on, rather than competing with it — and they don't depend on a medication working to be useful.

Propranolol losing its grip is one of the most common turning points in living with essential tremor, and it is a manageable one. The sequence is consistent: don't stop the drug on your own, get a review to find out whether the tremor has progressed or a trigger is interfering, adjust or add medication as needed, and know that procedures and non-drug aids are there if pills reach their limit. A drug that stopped working is a reason to see your doctor, not a dead end.