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CACNA1S

Drugs affected by CACNA1S

Calcium voltage-gated channel subunit alpha1 S

7 medications 2 brand products

About CACNA1S

Certain CACNA1S variants confer susceptibility to malignant hyperthermia, a serious reaction to triggering anesthetics. The Gene2Rx assessment concerns a defined set of variants and is available only for eligible original WGS data.[1]

No listed variant detected does not rule out susceptibility. Missing sites and variants outside the targeted screen remain limitations. Share personal or family anesthesia reactions with the anesthesia team regardless of this result.

What we test for CACNA1S

Gene2Rx uses definitions covering 2 named CACNA1S alleles, built from 2 variants in CPIC targeted screen. WGS only; no listed variant detected does not rule out susceptibility.

2
Named alleles
2
Defined variants
CPIC targeted screen
Source
GRCh37/GRCh38
Genome build
Malignant Hyperthermia associated 2
Supported CACNA1S definitions
  • c.3257G>A: Malignant Hyperthermia associated
  • c.520C>T: Malignant Hyperthermia associated
What do these allele names mean?

CACNA1S alleles are named by the underlying DNA variant rather than a star number. For example, c.61C>T describes a single base change at position 61 of the coding sequence.

DNA variant labels identify sequence differences. Their interpretation depends on the particular gene, the evidence, and the variants that can be assessed in your data. A DNA result does not directly measure enzyme activity.

The source of these definitions is listed above. Missing variants or incomplete coverage can leave a result indeterminate.

Medications with CACNA1S information

This list contains 7 medications with CACNA1S information from the sources shown below. Evidence and report eligibility differ by drug; each page explains its scope and limitations.

Brand products containing a CACNA1S-affected ingredient

These branded medications include at least one active ingredient whose metabolism or action involves CACNA1S. Each links to its full pharmacogenetic breakdown.

References

  1. Primary source. CPIC: RYR1/CACNA1S and anesthetic agents. pmc.ncbi.nlm.nih.gov

Explore CACNA1S in your report

A Gene2Rx report interprets supported variants in the context of your data and purchased report. Missing or uncertain calls may prevent an assessment.

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Informational only, not medical advice. The presence of a CACNA1S pharmacogenetic guideline does not mean every patient needs to change their dose. Never start, stop, or change a medication without talking to your prescribing clinician.

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