Best Medication Error Lawyers in Mississauga, ON (2026)
This evidence-based 2026 list compares medication error lawyers serving Mississauga by looking at the work they handle, their published results and client feedback.
Our featured firm in Mississauga is Diamond & Diamond Lawyers LLP, where Jeremy Syrtash leads the medical malpractice group. Our review highlights Paul Cahill's focus on medical negligence; his published trial results include an $11.5 million birth injury verdict, which sets him apart among the firms reviewed. Find out who would handle your medication error claim before calling, and ask what fees and case costs you'd face. Find out where the office is, too. Read the Ontario law guide for the limitation periods you'll need to discuss.
Jeremy Syrtash leads the medical malpractice litigation practice at Diamond & Diamond Lawyers LLP. He earned a BA from Yeshiva University (2010) and a JD from the University of Ottawa (2013), was called to the Bar of Ontario in 2014, and has acted as counsel and co-counsel in medical malpractice cases across Canada, many involving pediatric and obstetrical negligence.
Called to the Bar of Ontario, 2014 · JD, University of Ottawa · Best Lawyers: Ones to Watch in Canada, Health Care Law (2024 to 2027)
Paul Cahill's published results include an $11.5 million jury verdict for a child born with cerebral palsy; he also won a trial against an emergency room physician in a mother's death. A published medication error recovery isn't among them. Medical negligence is the issue in both.
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
Founded in 1962, Gluckstein LLP has an office in Mississauga. Managing partner Charles E. Gluckstein and senior counsel Richard Halpern are on its team; the firm's site includes medication errors in its medical malpractice work. The local office may work for your family if you'd rather not travel to Toronto for meetings.
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
Not sure who to call first?
Tell us what happened. A malpractice lawyer who serves Mississauga can look at it with you, and it costs nothing.
Clients of Bogoroch & Associates LLP repeatedly describe being kept informed by the firm. With 210 reviews behind its 4.9 Google rating, it has more feedback than the other listed firms; one reviewer, though, reports unanswered follow-ups. Medication errors appear on the firm's site.
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
Best for: Medication claims with broader litigation issues
Davidson Cahill Morrison LLP also handles insurance law and appeals, beyond medical malpractice. You'll find medication errors among the medical negligence topics on its site. The firm's lawyers include Jim Davidson; Paul Cahill is a partner and Hudson Chalmers an associate.
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
When describing the medication and injury, include when you learned there might be a connection. The treatment date alone doesn't determine Ontario's 2-year discovery period. If you're considering waiting, first ask an Ontario lawyer to assess your filing deadline.
Assess the medical questions
To assess your claim, which prescription records and chart entries will the lawyer need? The care expected, called the standard of care, is addressed in medical opinions. Those opinions also address whether the provider's act or omission caused the injury (causation).
Start the claim
In Ontario, you can start a malpractice claim without an affidavit or certificate of merit. You'll still need medical support. If the injured person is a child, discuss how the rules apply, along with when you must start the claim.
Serve expert reports
When a claim proceeds in practice, expert reports on the standard of care and causation must be served under the court's rules. Ask how the cost of obtaining those reports will be handled, as well as which opinions your lawyer says the claim needs.
Assess losses and the next steps
Talk to the lawyer about future care needs and income you've lost. Ontario doesn't impose a statutory cap on economic losses; a national judge-made cap does limit non-pecuniary damages. Ask how those caps affect your claim and what still needs doing before you proceed.
Malpractice claims in Mississauga: the rules that matter
The filing deadline in Ontario
The clock startsWhen you found out, or should have
Time to start a claim2 yearsMiss it and the claim is usually lost.
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.
A written agreementThe share the lawyer takes, set out before work starts.
If you recover moneyThe agreed share and the case costs come out of it.
If the claim failsNo legal fee on a contingency agreement. Ask about costs.
Bogoroch & Associates LLP says contingency fees are available: if the claim fails, there's no lawyer's fee, and if there's a recovery, the lawyer receives a share. The other firms may not offer the same arrangement. Records and medical opinions count as separate case expenses, along with court fees. If the claim fails, who must pay those costs, and who advances the money? You won't find those answers in the listed fee information. Before signing, ask for a written explanation of the lawyer's share, including how expenses change the amount you'll have left.
A free consultation is offered by two of the four listed firms, they say. Contingency fees are offered by one, it says.
What to bring to your first call
Bring your prescription labels and the medication names
Bring any hospital charts or discharge notes you already have
Note the prescribing and dispensing dates, then when you took the medication
Write down who provided your care
Write a short timeline of the injury, including what you learned
Bring bills and records of lost income or missed work
Bring any letters the hospital or insurer sent you
Include photos if they'll help you explain the injury
Questions to ask a lawyer
1What medication error claims have you handled that resemble mine?
2Who would review my records and otherwise work on my file?
3What deadline would I have to meet for filing?
4What medical opinions would be needed for my claim?
5Are a free consultation and contingency fees available through your firm?
6If there's no recovery, who pays the case costs?
7When I call, how will you respond and keep me updated?
8If we meet, would it be in Mississauga or another office?
Choosing a medication error lawyer in Mississauga
Start with what went wrong with your medication, not the other injury claims the firm handles. Each listed firm mentions medication errors on its site. You can't tell from that alone how many similar claims its lawyers have handled. After describing the prescription and what happened when you took it, ask whether they've handled claims with comparable prescribing or administration issues.
Take care when reading published results. Although Paul Cahill's birth injury jury verdict shows medical negligence trial work, it doesn't show a medication error result. The other listed firms have no published results included here. Ask what experience the lawyer has that's relevant to your claim, remembering that a past recovery doesn't predict one for your family.
Set expectations before you hire
Find out who'll speak with you and read your chart and prescription records. If calls go unanswered, ask how the firm handles that.
Confirm the meeting location. If you'd rather meet locally, Gluckstein LLP has a Mississauga office; the other listed offices are in Toronto.
Ask how medical opinions would be obtained to assess your care and whether the alleged error was what caused your injury.
Request the terms in writing. Since a free consultation isn't a contingency agreement, ask the firm to explain what it offers for each.
Without paying for the discussion, a free consultation lets you talk about whether the firm may take your claim. That doesn't mean it has agreed to represent you. If the claim fails under a contingency arrangement, there's no lawyer's fee; otherwise, the lawyer receives a share of a recovery. Discuss expenses separately by asking what records and medical opinions cost, then finding out who pays those costs if nothing is recovered.
If a lawyer promises a result, be cautious about hiring them. If they won't explain costs or make it clear whether the firm has accepted your file, that's another reason to be wary. Some feedback for several listed firms describes problems with intake or communication. If the filing date may be close, it's especially important to get a clear answer about representation and what happens next. Treat this as general information, not legal advice.
Questions people ask
Which listed lawyers handle medication error claims in Mississauga?
Medication errors appear on the sites of Paul Cahill and Gluckstein LLP, and they're also listed by Bogoroch & Associates LLP and Davidson Cahill Morrison LLP. If you'd prefer a Mississauga office, Gluckstein LLP has one; the other listed offices are in Toronto. When asking each firm about what caused your injury, explain whether the issue involved prescribing the medication, dispensing it or giving it to you.
What is the filing deadline for a medication error claim in Ontario?
The basic limitation period starts at discovery and lasts 2 years. Discovery means you knew, or reasonably ought to have known, about the injury and the provider's contribution to it; it also involves whether a lawsuit was appropriate. There's also a 15-year ultimate period under Ontario's Limitations Act. To understand how those rules apply to your circumstances, speak with an Ontario lawyer.
Are the deadlines different if my child was injured?
Yes. While the injured person is under 18 and has no litigation guardian for the claim, the 2-year period doesn't run. If a claim arises while the claimant is a minor without a litigation guardian, the 15-year ultimate period is also suspended. That rule is addressed in Wong v. Lui, 2023 ONCA 272. To have your child's position assessed, ask an Ontario lawyer.
Do I need a medical report before starting a claim?
In Ontario, you can start a claim without an affidavit or certificate of merit. When the claim proceeds in practice, though, expert reports on the standard of care and causation must be served under the court's rules. Ask which medical opinions are needed for your medication error claim, then find out who'll arrange them and who's paying.
Can I speak with a lawyer without paying for the first consultation?
Free consultations are available, according to Gluckstein LLP and Bogoroch & Associates LLP. Before booking with Paul Cahill or Davidson Cahill Morrison LLP, ask about consultation terms, because this list doesn't state what they offer. Even if the first discussion is free, the firm hasn't necessarily agreed to take your claim. Before moving ahead, confirm that your file has been accepted and ask what happens next.
Will I have to pay legal fees if the claim fails?
If the claim fails under a contingency agreement, there's no lawyer's fee; if there's a recovery, the lawyer receives a share. That arrangement is available, according to Bogoroch & Associates LLP. Expenses remain separate. Before signing, find out who pays for records and medical opinions, then ask what you could owe if there's no recovery.
How long will a medication error claim take?
These firms have no supported estimate for completing a claim. Because Ontario's rules require expert reports in practice, your lawyer will need to assess the medical questions, along with your losses. When asking about progress updates, find out what work still remains. Although the basic limitation period is 2-year, it concerns when you start a claim rather than how long the claim takes to finish.
What should I do if a loved one died after a medication error?
Start by gathering any hospital records you have, along with the medication details. To review what happened and which deadlines apply, speak with an Ontario lawyer. Wrongful death appears among Bogoroch & Associates LLP's practice areas; Gluckstein LLP also includes the topic on its site. Although Paul Cahill has a published trial result involving an emergency room patient's death, that result isn't specific to a death from a medication error.
Is there a limit on what a medication error claim can recover?
If losses involve income or future care, they're economic losses, which Ontario doesn't limit with a statutory cap. For non-pecuniary damages, a national judge-made cap limits compensation for harms such as pain and suffering. You can't predict a recovery from those rules. To understand which losses may apply to your circumstances, ask an Ontario lawyer what support your claim would need.
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Jeremy Syrtash
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