Drug interactions
Amobarbital + Lidocaine
Severity: Moderate
Amobarbital and Lidocaine: moderate interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Barbiturates induce hepatic enzymes including CYP3A4, which contributes to lidocaine metabolism, so lidocaine exposure may fall and its antiarrhythmic or anesthetic effect may be reduced. Induction develops over days and fades after the barbiturate is stopped.
What this interaction means in plain words
Amobarbital and Lidocaine can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Amobarbital belongs to Central Nervous System; Lidocaine belongs to Cardiovascular.
Why it happens
Hepatic enzyme induction by amobarbital increases lidocaine metabolism.
What to do
Monitor clinical response and lidocaine levels where available during systemic use and increase the dose if effect is inadequate.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Lidocaine
- Bupivacaine liposome + Lidocaine Major
- Disopyramide + Lidocaine Major
- Ex vivo expanded autologous human corneal epithelial cells containing stem cells + Lidocaine Major
- Lidocaine + Nirmatrelvir / ritonavir Major
- Lidocaine + Ombitasvir / paritaprevir / ritonavir and dasabuvir Major
- Lidocaine + Pimozide Major
Other interactions of Amobarbital
- Amobarbital + Calcium / magnesium / potassium / sodium oxybates Contraindicated
- Amobarbital + Doravirine Contraindicated
- Amobarbital + Elbasvir / grazoprevir Contraindicated
- Amobarbital + Isavuconazonium Contraindicated
- Amobarbital + Isocarboxazid Contraindicated
- Amobarbital + Lonafarnib Contraindicated
Frequently asked questions
Can I take Amobarbital with Lidocaine?
MediHelp rates the interaction as moderate. Amobarbital and Lidocaine can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Barbiturates induce hepatic enzymes including CYP3A4, which contributes to lidocaine metabolism, so lidocaine exposure may fall and its antiarrhythmic or anesthetic effect may be reduced. Induction develops over days and fades after the barbiturate is stopped.
How serious is the interaction between Amobarbital and Lidocaine?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor clinical response and lidocaine levels where available during systemic use and increase the dose if effect is inadequate.
What other medicines interact with Lidocaine?
MediHelp also lists interactions of Lidocaine with, for example, Bupivacaine liposome, Disopyramide, Ex vivo expanded autologous human corneal epithelial cells containing stem cells. The full list is on the Lidocaine page.
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