Pharmaceutical Side Effects

Can you safely reduce or stop a medication, and how?

Some medicines can likely be reduced safely, but only with your prescriber; stopping suddenly can cause withdrawal, rebound or relapse.

Some medicines can be reduced or stopped safely, but only with your prescriber, because stopping the wrong one, or stopping suddenly, can be dangerous. After a heart attack, people who stopped aspirin, a beta-blocker and a statin within a month had about 3.8 times the one-year risk of death of those who stayed on at least one1. Acid reducers, sleeping pills and antidepressants each call for a planned, usually gradual, change2,3,4. Trials support tailored, prescriber-led reviews5,6.

What you can do

  • Never stop or cut a prescribed medicine alone: book a review with your list, supplements included, and ask what each is for, if still needed and the taper plan6.
  • Ask for a written, gradual plan with follow-up dates: guidelines advise step-down or on-demand acid reducers2 and slow benzodiazepine tapers3; experts propose months-long SSRI tapers4.
  • Add non-drug support where it exists, such as behavioral sleep advice during a sleeping-pill taper; people do better when they understand why and help build the plan3.

Be careful if

  • Some medicines are dangerous to stop unsupervised: after heart attack, stopping aspirin, beta-blocker and statin together carried 3.8 times one-year death risk1; stopping steroids can cause adrenal insufficiency9.
  • Antidepressants: in the ANTLER trial, 56 percent who stopped relapsed within a year versus 39 percent who stayed on, so plan tapers with your prescriber and watch for relapse10.
  • Pregnant or planning pregnancy? Some medicines are riskier to continue and others riskier to stop, so decide with your prescriber rather than stopping on your own.
How it works What it does in your body, in plain words 2 min

Deprescribing is a studied practice

Deprescribing means tapering or stopping drugs that no longer help, to cut the harm of taking too many. A five-step process lists every drug and why it is taken, weighs benefit against harm, targets drugs with the lowest benefit-harm ratio and least risk of withdrawal, then monitors the change6. A review of 132 studies (34,143 older adults) found no clear fall in deaths across randomized trials (odds ratio 0.82) but a fall when deprescribing was tailored to the patient (0.62)5. See informed consent and being your own advocate.

Where reduction has worked

  • Acid reducers (PPIs). Guidelines advise reducing the dose, stopping or using them on demand once heartburn has settled, but not after Barrett esophagus or severe esophagitis2. Rebound heartburn can occur: after 8 weeks of esomeprazole, 44 percent of healthy volunteers had acid symptoms after stopping, against 15 percent on placebo7. See acid reflux.
  • Sleeping pills (benzodiazepines and "Z-drugs"). Slow tapering is advised for adults 65 and older, and for adults 18 to 64 who have used them for over 4 weeks3.
  • Blood-pressure pills in the very old. In OPTIMISE, 569 adults aged 80 or older, with systolic pressure under 150 mm Hg on two or more drugs, had one drug removed or kept their regimen. At 12 weeks, 86.4 versus 87.7 percent still had pressure under 150 mm Hg8.

Where stopping is risky

  • Heart medicines. Stopping all three of aspirin, a beta-blocker and a statin early after a heart attack went with a higher death rate1.
  • Steroid tablets. Adrenal insufficiency after stopping glucocorticoids is common, and no dose, duration or route excludes it with certainty9.
  • Antidepressants. Two risks overlap: relapse of depression (56 percent after stopping versus 39 percent on staying in ANTLER)10 and withdrawal symptoms. Estimates of withdrawal differ: about 31 percent after stopping an antidepressant versus 17 percent after stopping a placebo in a 2024 meta-analysis11, against an average of 56 percent in a 2019 review of varied studies12. Short two-to-four-week tapers showed little advantage over stopping abruptly; slow tapers over months to very low doses have been proposed4.

How to do it safely

Book a review, bring every medicine and supplement, and agree a written taper with dose steps, timing and a follow-up date. Treat new symptoms as information: withdrawal, rebound and relapse can feel alike, and only your prescriber can sort them out. See also which medications deplete nutrients.

The evidence The studies, what they found, and how much to trust them 4 min · 12 sources

Does deprescribing help?

Page and colleagues pooled 132 papers (34,143 participants, mean age 73.8). Non-randomized studies showed lower mortality with deprescribing (odds ratio 0.32, 95% CI 0.17 to 0.60), but randomized studies did not (0.82, 0.61 to 1.11). Patient-specific interventions did lower mortality (0.62, 0.43 to 0.88), while generalized education programs did not (1.21, 0.86 to 1.69)5. Scott and colleagues note that the number of prescribed drugs is the single strongest predictor of inappropriate prescribing and adverse drug events in older patients6. In OPTIMISE, 569 patients (mean age 84.8) were randomized to remove one blood-pressure drug or continue usual care. Pressure stayed under 150 mm Hg in 86.4 versus 87.7 percent (adjusted relative risk 0.98), meeting the non-inferiority margin of 0.90; mean systolic pressure was 3.4 mm Hg higher after reduction, and serious adverse events were 4.3 versus 2.4 percent (relative risk 1.72, 0.7 to 4.3). The trial lasted only 12 weeks, so long-term outcomes are unknown8.

Acid reducers and sleeping pills

Reimer's trial gave 120 healthy volunteers 12 weeks of placebo, or 8 weeks of esomeprazole 40 mg a day followed by 4 weeks of placebo. In weeks 9 to 12, 44 percent (26 of 59) of the esomeprazole group reported a relevant acid-related symptom, against 15 percent (9 of 59) on placebo, a sign of rebound acid hypersecretion7. The PPI guideline recommends deprescribing in adults who have completed at least 4 weeks of treatment for heartburn or mild-to-moderate reflux disease or esophagitis and whose symptoms have resolved; it does not apply to Barrett esophagus, severe grade C or D esophagitis, or a history of bleeding ulcers2. The benzodiazepine-receptor-agonist guideline recommends offering a slow taper and found that tapering improved cessation rates compared with usual care without serious harms; it does not apply to untreated anxiety, depression or other sleep disorders3.

When stopping is dangerous

In a registry of 1,521 people discharged after a heart attack on aspirin, a beta-blocker and a statin, 184 stopped all three by one month, 56 stopped two, 272 stopped one and 1,009 continued all three. One-year survival was 88.5 versus 97.7 percent for those who stopped all three versus those who kept at least one (hazard ratio 3.81, 1.88 to 7.72), and results were consistent drug by drug. It was observational, so people who stop may differ in other ways1. A meta-analysis of 74 articles (3,753 participants) found adrenal insufficiency after glucocorticoids in 4.2 percent with nasal use to 52.2 percent with intra-articular use, rising with higher dose and longer duration; testing should be considered in people with non-specific symptoms after stopping9.

Antidepressants: relapse and withdrawal

In ANTLER, 478 UK primary-care patients who felt well enough to consider stopping (a history of at least two depressive episodes, or two or more years on an antidepressant) were randomized to maintain citalopram, fluoxetine, sertraline or mirtazapine or to taper to matching placebo. By 52 weeks, relapse occurred in 92 of 238 (39 percent) who stayed on versus 135 of 240 (56 percent) who stopped (hazard ratio 2.06, 1.56 to 2.70), and the stopping group had more depressive, anxiety and withdrawal symptoms. Adherence to the assigned plan was 70 versus 52 percent10. A 2024 meta-analysis of 79 studies (21,002 patients) found at least one discontinuation symptom in 31 percent (27 to 35) after stopping an antidepressant and 17 percent (14 to 21) after stopping placebo, a difference of 8 points in randomized trials; severe symptoms occurred in 2.8 versus 0.6 percent. It put the excess incidence at about 15 percent, one in six or seven, with substantial heterogeneity11. The 2019 review of 24 studies of varied design reported incidence from 27 to 86 percent (average 56 percent), with many people affected for over two weeks and some for months12. A review proposes tapering SSRIs hyperbolically over months, based on imaging of serotonin-transporter occupancy and limited trial data, rather than a randomized comparison of schedules4.

Where the evidence conflicts

The two withdrawal estimates differ in method: the 2024 analysis allows for symptoms that also appear after stopping placebo, while the 2019 review pooled figures from studies of diverse design11,12. Mortality benefits of deprescribing appear in non-randomized work but are not confirmed in randomized trials overall5. Taper schedules for antidepressants rest on pharmacology and clinical experience more than on head-to-head trials4.

Bottom line

Confidence is moderate (3 of 5). Supervised dose reduction is supported for acid reducers, sleeping pills and some blood-pressure regimens in selected people2,3,8. Stopping heart medicines or steroids abruptly, or stopping antidepressants too soon, carries real risks1,9,10. The safest path is a plan made with your prescriber.

  1. Impact of medication therapy discontinuation on mortality after myocardial infarction. Ho PM, Spertus JA, Masoudi FA, et al.. Arch Intern Med, 2006. PubMed 17000940
  2. Deprescribing proton pump inhibitors: Evidence-based clinical practice guideline. Farrell B, Pottie K, Thompson W, et al.. Can Fam Physician, 2017. PubMed 28500192
  3. Deprescribing benzodiazepine receptor agonists: Evidence-based clinical practice guideline. Pottie K, Thompson W, Davies S, et al.. Can Fam Physician, 2018. PubMed 29760253
  4. Tapering of SSRI treatment to mitigate withdrawal symptoms. Horowitz MA, Taylor D. Lancet Psychiatry, 2019. PubMed 30850328
  5. The feasibility and effect of deprescribing in older adults on mortality and health: a systematic review and meta-analysis. Page AT, Clifford RM, Potter K, et al.. Br J Clin Pharmacol, 2016. PubMed 27077231
  6. Reducing inappropriate polypharmacy: the process of deprescribing. Scott IA, Hilmer SN, Reeve E, et al.. JAMA Intern Med, 2015. PubMed 25798731
  7. Proton-pump inhibitor therapy induces acid-related symptoms in healthy volunteers after withdrawal of therapy. Reimer C, Søndergaard B, Hilsted L, et al.. Gastroenterology, 2009. PubMed 19362552
  8. Effect of Antihypertensive Medication Reduction vs Usual Care on Short-term Blood Pressure Control in Patients With Hypertension Aged 80 Years and Older: The OPTIMISE Randomized Clinical Trial. Sheppard JP, Burt J, Lown M, et al.. JAMA, 2020. PubMed 32453368
  9. Adrenal Insufficiency in Corticosteroids Use: Systematic Review and Meta-Analysis. Broersen LH, Pereira AM, Jørgensen JO, et al.. J Clin Endocrinol Metab, 2015. PubMed 25844620
  10. Maintenance or Discontinuation of Antidepressants in Primary Care. Lewis G, Marston L, Duffy L, et al.. N Engl J Med, 2021. PubMed 34587384
  11. Incidence of antidepressant discontinuation symptoms: a systematic review and meta-analysis. Henssler J, Schmidt Y, Schmidt U, et al.. Lancet Psychiatry, 2024. PubMed 38851198
  12. A systematic review into the incidence, severity and duration of antidepressant withdrawal effects: Are guidelines evidence-based?. Davies J, Read J. Addict Behav, 2019. PubMed 30292574

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