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Does Ziprasidone Hcl Interact with Lorazepam?

Ziprasidone Hcl and Lorazepam have a unknown drug interaction according to U.S. FDA drug labeling data. 7.9 Other Concomitant Drug Therapy Population pharmacokinetic analysis of schizophrenic patients enrolled in controlled clinical trials has not revealed evidence of any clinically significant pharmacokinetic interactions with benztropine, propranolol, or lorazepam. Patients taking both medications should consult their healthcare provider before starting, stopping, or changing the dosage of either drug. This information is based on official FDA drug labeling sourced from OpenFDA and the NIH National Library of Medicine.

Severity
Unknown
Ziprasidone Hcl Class
Atypical Antipsychotic
Lorazepam Class
Benzodiazepine
Management
Consult your pharmacist
Data Source
U.S. FDA via OpenFDA

What To Tell Your Doctor or Pharmacist

If you are taking Ziprasidone Hcl and your doctor is considering prescribing Lorazepam (or vice versa), make sure to:

  • Inform your doctor and pharmacist of all current medications, including over-the-counter drugs and supplements
  • Ask whether the benefits of combining these medications outweigh the risks for your specific situation
  • Ask what symptoms to watch for that would indicate the interaction is causing problems
  • Never stop or change either medication without first consulting your healthcare provider
💊 Ziprasidone Hcl(Ziprasidone Hydrochloride)+💊 Lorazepam(Ativan)

Severity & Interaction Details

ℹ️
unknown
Interaction documented — severity unclassified
The FDA label notes an interaction but the severity is not classified in our dataset.
Severity scale
MinorContra
On record
Yes
Drug A class
Atypical Antipsychotic
Drug B class
Benzodiazepine
Source
FDA drug label - ziprasidone hcl

What this means in plain English

7.9 Other Concomitant Drug Therapy Population pharmacokinetic analysis of schizophrenic patients enrolled in controlled clinical trials has not revealed evidence of any clinically significant pharmacokinetic interactions with benztropine, propranolol, or lorazepam.

About Ziprasidone Hcl and Lorazepam

Ziprasidone Hcl is an Atypical Antipsychotic, while Lorazepam is a Benzodiazepine. Lorazepam is also sold under the brand name Ativan. Both medications are taken by mouth. Both Ziprasidone Hcl and Lorazepam carry an FDA boxed warning — the agency's most serious safety designation.

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Data integrity: Every interaction shown is extracted directly from official U.S. FDA drug labeling via openFDA and the U.S. National Library of Medicine (NIH) — no interactions are invented, inferred, or manually edited. Maintained by CheckDrugInteractions.com. See our methodology or report a correction at support@checkdruginteractions.com.

Data sourced from U.S. FDA drug labeling via openFDA and the NIH National Library of Medicine, supplemented with a small number of well-established interactions from curated clinical references. For informational purposes only. Always consult your pharmacist or physician.