Can I Take 5-HTP with Provigil (Modafinil)? A Clinical Review
A physician-reviewed guide to the 5-HTP and Provigil (modafinil) interaction, covering serotonin syndrome risk, mechanisms, dose timing, and monitoring advice.
30 clinically reviewed articles, written and peer-reviewed by the HealthRX.com Medical Team.

Showing 30 of 30 clinical reviews.
A physician-reviewed guide to the 5-HTP and Provigil (modafinil) interaction, covering serotonin syndrome risk, mechanisms, dose timing, and monitoring advice.
Alpha-lipoic acid and Provigil (modafinil) have no documented direct drug interaction, but ALA's effects on blood sugar and thyroid hormone conversion warrant monitoring. Here's what the evidence says.
A physician-reviewed guide to combining ashwagandha and modafinil (Provigil): pharmacokinetic and pharmacodynamic interactions, cortisol, thyroid, and testosterone effects, dosing windows, and when to call your prescriber.
Berberine inhibits CYP3A4, the same enzyme that clears modafinil. Learn the pharmacokinetic interaction risk, safe dose-separation windows, and monitoring steps if you take both.
A physician-reviewed guide covering the pharmacokinetic and pharmacodynamic interactions between caffeine and modafinil (Provigil), including dose guidance, blood pressure monitoring, and when to avoid the combination.
A clinician-reviewed guide on whether calcium supplements are safe to take alongside Provigil (modafinil), covering pharmacokinetic interactions, dose timing, cardiovascular considerations, and monitoring recommendations.
CoQ10 and Provigil (modafinil) have no known direct drug interaction, but timing, dose, and individual factors matter. A pharmacist-reviewed guide to combining them safely.
A physician-reviewed guide covering whether creatine is safe to combine with modafinil (Provigil), the pharmacokinetic and pharmacodynamic interaction profile, creatinine lab concerns, and dosing guidance.
A clinician-reviewed guide to the folate-modafinil interaction: pharmacokinetics, MTHFR considerations, dosing windows, and monitoring recommendations for patients on Provigil.
Ginseng and Provigil (modafinil) have overlapping stimulant effects and potential pharmacokinetic interactions via CYP enzymes. Learn the evidence on safety, dose separation, glucose monitoring, and anticoagulant risk.
A clinical breakdown of the modafinil-glutathione interaction: pharmacokinetics, liver metabolism, dosing strategy, and what the evidence actually shows.
Evidence-based guide on combining glycine supplements with Provigil (modafinil). Covers pharmacokinetic and pharmacodynamic interactions, dose-separation timing, sleep effects, and monitoring recommendations.
A physician-reviewed guide to the safety, pharmacokinetic interactions, and monitoring recommendations for combining green tea extract or EGCG with modafinil (Provigil).
A clinician-reviewed guide to combining L-theanine and Provigil (modafinil): pharmacokinetic data, pharmacodynamic interaction risks, safe dosing strategies, and when to call your prescriber.
Evidence-based guide on combining lion's mane mushroom with Provigil (modafinil). Covers pharmacokinetic and pharmacodynamic interactions, dose-separation strategies, monitoring, and clinical recommendations.
Evidence-based guide on taking magnesium supplements with Provigil (modafinil). Covers pharmacokinetic and pharmacodynamic interactions, dose-separation timing, monitoring, and clinical recommendations.
Evidence-based guide on combining melatonin with Provigil (modafinil). Covers interaction mechanisms, dose-separation timing, safety data, and clinical monitoring recommendations.
A physician-reviewed guide to the NAC and modafinil combination: pharmacokinetic and pharmacodynamic interactions, dosing windows, monitoring, and when to ask your prescriber.
A clinician-reviewed guide covering the pharmacokinetic and pharmacodynamic interactions between omega-3 fatty acids (EPA/DHA) and modafinil (Provigil), including safety evidence, monitoring parameters, and practical dosing guidance.
Quercetin may inhibit CYP3A4 and histamine pathways that affect modafinil metabolism and wakefulness. Learn the pharmacokinetic interaction risk, practical dose-separation guidance, and what to discuss with your prescriber.
Reishi mushroom and Provigil (modafinil) have a theoretical interaction through CYP3A4 metabolism and antiplatelet effects. Learn the evidence, monitoring steps, and dose-separation strategies.
A clinical review of the resveratrol-modafinil interaction, covering CYP3A4 enzyme competition, estrogenic effects, dosing timing, and what to do if you are already taking both.
Detailed clinical review of combining rhodiola rosea with modafinil (Provigil): pharmacokinetic and pharmacodynamic interactions, safety evidence, dosing guidance, and monitoring recommendations.
A clinical review of the saw palmetto and modafinil (Provigil) interaction: pharmacokinetics, CYP3A4 effects, bleeding risk, and how to take both safely.
St. John's Wort is a potent CYP3A4 inducer that can reduce modafinil blood levels and increase the risk of contraceptive failure. Learn the mechanism, clinical evidence, and what to do if you are already taking both.
A clinician-reviewed guide covering the pharmacokinetic and pharmacodynamic interactions between turmeric/curcumin and modafinil (Provigil), with dosing guidance, monitoring advice, and primary-source citations.
Evidence-based guide on combining vitamin B12 supplements with Provigil (modafinil). Covers interaction risk, pharmacokinetics, dose timing, monitoring, and clinical recommendations.
A clinician-reviewed guide covering the pharmacokinetic and pharmacodynamic interactions between vitamin B6 (pyridoxine) and Provigil (modafinil), including safe dose ranges, monitoring advice, and when to call your prescriber.
A physician-reviewed guide to taking vitamin D with Provigil (modafinil). Learn the pharmacokinetic interaction risk, safe dosing windows, monitoring labs, and what the clinical evidence actually shows.
A board-reviewed guide covering the zinc-modafinil interaction: pharmacokinetics, thyroid hormone effects, copper balance, dosing windows, and monitoring recommendations for safe concurrent use.