Drug interactions
Niacin + Nicotine
Severity: Minor
Niacin and Nicotine: minor 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
Nicotine and niacin can both cause cutaneous vasodilation, so flushing and dizziness may be more noticeable when taken together. The effect is generally mild and transient.
What this interaction means in plain words
Niacin and Nicotine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Niacin belongs to Cardiovascular; Nicotine belongs to Respiratory.
Why it happens
Additive vasodilatory effects; the mechanism is not firmly established.
What to do
No routine action is needed; tell patients that flushing may be more pronounced and review niacin dosing if symptoms bother them.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Nicotine
- Adenosine + Nicotine Moderate
- Bupropion + Nicotine Moderate
- Dihydroergotamine intranasal + Nicotine Moderate
- Dihydroergotamine + Nicotine Moderate
- Esketamine intranasal + Nicotine Moderate
- Nicotine + Solriamfetol Moderate
Other interactions of Niacin
- Alogliptin-metformin + Niacin Moderate
- Atorvastatin + Niacin Moderate
- Canagliflozin-metformin + Niacin Moderate
- Cholestyramine + Niacin Moderate
- Colestipol + Niacin Moderate
- Dapagliflozin-metformin + Niacin Moderate
Frequently asked questions
Can I take Niacin with Nicotine?
MediHelp rates the interaction as minor. Niacin and Nicotine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Nicotine and niacin can both cause cutaneous vasodilation, so flushing and dizziness may be more noticeable when taken together. The effect is generally mild and transient.
How serious is the interaction between Niacin and Nicotine?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No routine action is needed; tell patients that flushing may be more pronounced and review niacin dosing if symptoms bother them.
What other medicines interact with Nicotine?
MediHelp also lists interactions of Nicotine with, for example, Adenosine, Bupropion, Dihydroergotamine intranasal. The full list is on the Nicotine page.
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