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Malpractice Center

Best Medication Error Lawyers in Toronto, ON (2026)

Using evidence for 2026, this list ranks Toronto medication error lawyers by practice focus and results, with reviews and professional recognition also considered.

Sources checked

5 lawyers and firms

Toronto skyline viewed from Snake Island
Photo: Dillan Payne, CC BY-SA 4.0, via Wikimedia Commons

The short answer

Our featured firm in Toronto is Diamond & Diamond Lawyers LLP, where Jeremy Syrtash leads the medical malpractice group. Among the firms we reviewed, Paul Cahill stands out because he focuses on medical negligence and has published trial results. Before calling, find out who handles medication error claims, then check how fees and case costs work. Could the Ontario limitation period affect your claim? Ask.

At a glance

  1. 1Diamond & Diamond Lawyers LLPJeremy SyrtashFeatured
  2. 2Paul Cahill4.8 out of 5
  3. 3Gluckstein LLPFree consultation4.8 out of 5
  4. 4Bogoroch & Associates LLPFree consultation4.9 out of 5
  5. 5Bergel Magence LLPFree consultation5.0 out of 5

Best Medication Error Lawyers in Toronto

  1. Featured
  2. Paul Cahill logo2

    Paul Cahill

    Google4.8(16): rated 4.8 out of 5 from 16 Google reviewsLeave a review

    Best for: Medical negligence trial experience

    Among Paul Cahill's published results are an $11.5 million jury verdict for a child born with cerebral palsy and a successful trial verdict involving an emergency physician and a mother's death. Although those results involve medical negligence, they aren't about medication errors. Medication errors are part of his practice, as are surgical errors and hospital negligence; medical malpractice makes up 80% of his work.

    CallWebsiteFree case reviewIs this your firm?
    How they were picked

    Stood out in our review for the recognition it has earned and how much of its work is medical malpractice.

    We order firms by how much of their work is medical malpractice, the results they publish, what their clients say, their experience, their standing with the regulator and the recognition they have earned, all from public records and the firms' own sites. How lists are made

  3. Gluckstein LLP logo3

    Gluckstein LLP

    Google4.8(168): rated 4.8 out of 5 from 168 Google reviewsLeave a review

    Best for: Established firm with senior counsel

    Because Gluckstein LLP dates to 1962, it's been operating a long time. Its team includes senior counsel Richard Halpern and David Lackman. Alongside medication errors addressed on its site, the firm handles medical malpractice, with paediatric injury also part of its broader practice.

    CallWebsiteFree case reviewIs this your firm?
    How they were picked

    Stood out in our review for its years of experience and the recognition it has earned.

    We order firms by how much of their work is medical malpractice, the results they publish, what their clients say, their experience, their standing with the regulator and the recognition they have earned, all from public records and the firms' own sites. How lists are made

  4. Not sure who to call first?

    Tell us what happened. A malpractice lawyer who serves Toronto can look at it with you, and it costs nothing.

  5. Bogoroch & Associates LLP logo4

    Bogoroch & Associates LLP

    Google4.9(210): rated 4.9 out of 5 from 210 Google reviewsLeave a review

    Best for: Families prioritising regular communication

    Of Bogoroch & Associates LLP, one reviewer says, “They always returned my calls and emails quickly,”. Across 210 Google reviews, clients often say they felt supported and were kept informed. Unanswered follow-up attempts do appear in one review, however.

    CallWebsiteFree case reviewIs this your firm?
    How they were picked

    Stood out in our review for the recognition it has earned and what its clients say.

    We order firms by how much of their work is medical malpractice, the results they publish, what their clients say, their experience, their standing with the regulator and the recognition they have earned, all from public records and the firms' own sites. How lists are made

  6. Bergel Magence LLP logo5

    Bergel Magence LLP

    Google5.0(9): rated 5.0 out of 5 from 9 Google reviewsLeave a review

    Best for: Families considering an Oakville office

    Since 1972, Bergel Magence LLP has been operating. Before travelling, confirm meeting arrangements: it lists an office in Oakville, 15 km from Toronto. You'll find medication errors on its site.

    CallWebsiteFree case reviewIs this your firm?
    How they were picked

    Stood out in our review for its years of experience and how much of its work is medical malpractice.

    We order firms by how much of their work is medical malpractice, the results they publish, what their clients say, their experience, their standing with the regulator and the recognition they have earned, all from public records and the firms' own sites. How lists are made

See every malpractice firm in Toronto

Where they are in Toronto

A few minutes that might help

Questions about your own case?
How a malpractice claim usually moves in Ontario

  1. 1.Something went wrong

    Write down dates and names while they're fresh.

  2. 2.Get your records

    Ask for your full chart and test results.

  3. 3.Free case review

    A lawyer looks at what happened, free.

  4. 4.Medical opinion

    A doctor checks whether the care fell short.

  5. 5.Start the claim in time

    Your lawyer starts the claim before the deadline.

  6. 6.Settlement or trial

    Many claims settle. Some go to a judge or jury.

Your deadline: 2 years from when you found outRead the Ontario law guide

Each step in more detail

  1. First assessment

    When speaking with a lawyer, describe the medication event and injury. Bring any dates you know. To check your deadline, the lawyer can assess when Ontario's 2-year discovery-based limitation period may have begun and whether the ultimate period affects your claim.

  2. Records and medical review

    To assess the care and its connection to the injury, what records and medical opinions are needed? Ask. Expert reports on the standard of care and causation (whether the care caused the harm) are needed in Ontario malpractice claims in practice.

  3. Starting the claim

    Before the applicable limitation period expires, you must start your claim. To start it in Ontario, you don't need an affidavit or certificate of merit. If it's a child's claim, ask the lawyer to assess the deadline rules and those about litigation guardians.

  4. Expert reports

    Under the court's rules, expert reports on the standard of care and causation must be served. What do those medical opinions say, and what's still disputed? Ask. Ask your lawyer how report costs work under your agreement.

  5. Possible resolution

    Could the case settle, and what would going to trial involve? Ask. Yours can't be predicted by another case's published verdict. Before deciding, have the lawyer explain the proposed resolution and how fees and expenses would affect any recovery.

Malpractice claims in Toronto: the rules that matter

The filing deadline in Ontario
  1. The clock startsWhen you found out, or should have
  2. Time to start a claim2 yearsMiss it and the claim is usually lost.
  3. At the very most15 yearsafter the treatment, with a few exceptions
Limits on damages in Ontario
  • Pain and sufferingCapped at about $484,330
  • All damages togetherNo overall cap
  • Expert paperworkNo affidavit or certificate of merit is required to start a claim.

Read the Ontario law guideWork out your own deadline

Basic limitation period in Ontario
2 years
Source
Ultimate limitation period
15 years
Source

What a malpractice lawyer costs in Toronto

  1. The first callOften free. Ask before you book.
  2. A written agreementThe share the lawyer takes, set out before work starts.
  3. If you recover moneyThe agreed share and the case costs come out of it.
  4. If the claim failsNo legal fee on a contingency agreement. Ask about costs.
With contingency fees, offered by several listed firms, the lawyer gets a share of any recovery but no legal fee if the claim fails. That excludes case costs. Obtaining records and medical opinions costs money, and court fees are included too. Ask who pays those expenses while the case proceeds and whether you could owe them without a recovery; don't assume the firm carries them. Get the lawyer's share explained in writing before signing, along with how expenses are deducted. Even after a free consultation, the firm hasn't necessarily accepted your claim.

According to four of the five listed firms, their consultations are free. According to three, they work on contingency.

What to bring to your first call

  • The medication event and injury set out in a written timeline
  • Any prescription labels you have, along with the medication names and doses
  • Medication administration records and hospital charts, if you have them
  • Who was involved: the health care providers' names
  • When you noticed the injury and began suspecting its cause, with dates
  • Information about lost income or care expenses, along with bills
  • What the hospital, pharmacy or insurer sent: any letters or emails
  • If you think photos relate to the injury, those photos

Questions to ask a lawyer

  1. 1Have you handled medication error cases like mine, and how many?
  2. 2If I have questions, who answers them and handles my file?
  3. 3To assess this, what records and medical opinions would you need?
  4. 4For my claim, when might the limitation period expire?
  5. 5If there's a recovery, how will you calculate the legal fees?
  6. 6If the claim succeeds or fails, who pays its case costs?
  7. 7Does the free consultation include having you review my records?
  8. 8When there's a decision in my case, how will you tell me?

Choosing a medication error lawyer in Toronto

Rather than the firm's advertising, start with what happened. After writing down what was prescribed and what you received, note when you first noticed an injury. Before you call, you don't need to decide whether someone was negligent. To assess that, what records would the lawyer need? Ask.

On each listed firm's site, you'll find medication errors addressed. How many similar claims each lawyer has handled isn't clear from that. Because Paul Cahill's published verdicts involve birth injury and emergency care, ask about the error you suspect; a result from a different area doesn't predict what will happen in your case.

  • Who will review the prescription and medication administration records? Ask, along with who you'll call with questions.
  • How would the firm assess whether treatment caused the injury? Ask. Expert reports are needed in Ontario claims in practice.
  • Would the proposed lawyer refer your enquiry elsewhere, or do they personally handle medication error claims? Ask.
  • Where will you meet? Confirm. Before travelling, check the location details, since some listed offices are outside Toronto.

Discuss money before signing

If a consultation is free, you can discuss a possible claim without paying for that first meeting. That doesn't mean they've agreed to take your case. If you use a contingency arrangement, the lawyer gets a share of any recovery but no legal fee if the claim fails. During the case, who pays for records and medical opinions, and what about court fees? Ask separately. If nothing is recovered, what happens to those costs?

If the claim is a child's, assess its deadline separately. While a claimant is under 18 and has no litigation guardian for the claim, the 2-year period doesn't run. For claims arising in those circumstances, a rule also suspends the ultimate period. Each child's claim won't necessarily follow the same calendar, so don't assume it does.

If someone promises a result or won't explain the fee agreement, be wary of them. When asking about communication, reviews can help you. A lawyer's experience handling medication errors isn't proved by those reviews. Before agreeing to have the firm represent you, ask for the next step in writing if the intake process feels unclear.

Questions people ask

How long do I have to start a medication error claim in Toronto?
From discovery, Ontario's basic limitation period runs for 2 years. You must know, or reasonably be expected to know, that you were injured and a provider's act or omission contributed, as well as that a lawsuit was appropriate, for discovery to occur. Under the Limitations Act, a 15-year ultimate period also applies. To understand how those rules apply to your dates, speak with an Ontario lawyer.
Can I speak to a lawyer without paying for the first consultation?
According to Gluckstein LLP and Bogoroch & Associates LLP, they offer free consultations; Bergel Magence LLP and Diamond and Diamond Lawyers say the same. We haven't confirmed Paul Cahill's consultation terms. Ask what the consultation covers before sending records. Even if the first conversation is free, the firm hasn't necessarily agreed to represent you or pay the costs of investigating your claim.
Does a contingency fee mean I won't owe anything if the claim fails?
If you use a contingency fee, the lawyer gets a share of any recovery but no legal fee if the claim fails. That excludes case expenses. According to Bogoroch & Associates LLP and Bergel Magence LLP, they offer contingency fees; Diamond and Diamond Lawyers says it does too. Who pays for records and medical opinions, and what about court fees? Ask each firm.
What does an Ontario medication error claim need?
A medical assessment must examine the care and its connection to the injury. To start a claim in Ontario, you don't need an affidavit or certificate of merit. Under the court's rules, though, expert reports on the standard of care and causation must be served. To assess whether the medication event caused harm, what records would the lawyer need and how would they approach it? Ask.
Do children have the same filing deadline as adults?
While a claimant is under 18 and has no litigation guardian for the claim, the 2-year period doesn't run. As addressed in Wong v. Lui, 2023 ONCA 272, the 15-year ultimate period is also suspended for a claim arising while the claimant is a minor without a litigation guardian. To assess your child's circumstances, speak with an Ontario lawyer.
How long will a medication error case take?
For cases these firms handle or for Ontario claims, no fixed duration is stated. What steps would your file need, including record review and expert reports, and what could affect its progress? Ask the firm. Although investigating or resolving a case takes time, that's different from the limitation period you have for starting it.
What should I do before calling a Toronto malpractice lawyer?
After writing a short timeline, gather the records you have, including prescription labels and correspondence from the hospital. When did you first notice the injury, and when did you suspect the medication was connected? Note those dates. Before calling, you don't need to settle the medical or legal questions yourself. To find out what else is needed, an Ontario lawyer can explain and assess the deadline.
Can I ask about a claim if my loved one died?
Yes. Alongside their other practice areas, Bogoroch & Associates LLP and Bergel Magence LLP list wrongful death; you'll also find it addressed on other listed firms' sites. Among Paul Cahill's published results is a trial involving a mother's death after emergency care. It isn't identified as a case about medication. To find out who may bring a claim and which deadlines apply, ask an Ontario lawyer.
Is there a cap on compensation in Ontario?
For economic losses, such as lost income or future care, Ontario has no statutory cap. Non-pecuniary damages (compensation for losses such as pain and suffering) are limited by a judge-made national cap called the trilogy cap. You can't tell what a particular claim is worth from those rules. To understand how they apply to the injuries and losses involved, ask your lawyer.

Sources

  1. Limitations Act, 2002, S.O. 2002, c. 24, Sched. B, Government of Ontario (e-Laws)
  2. Claims from minors and the 15-year ultimate limitation period in Ontario, Borden Ladner Gervais LLP
  3. Non-Pecuniary Damages Upper Limits (monthly indexed figures, 2024 to 2026), McKellar Structured Settlements
  4. Key Numbers for 2025 (trilogy cap and indexation), McCague Borlack LLP
  5. Malpractice Center methodology, Malpractice Center

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