5-HTP 100 mg Ingredients & Drug Interactions
by SuperSmart
What is this page for?
First and foremost: checking 5-HTP 100 mg against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.
Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy
5-HTP 100 mg is a dietary supplement by SuperSmart with 1 active ingredient. Its ingredients are commonly taken for low mood or depression, anxiety and stress, sleep problems.Based on those ingredients, 408 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are 5-HTP. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against 5-HTP 100 mg by SuperSmart
Ask about any prescription or over-the-counter medication and we check it for interactions with 5-HTP 100 mg by SuperSmart — and tell you which ingredient is responsible.
AI summaries are generated from our interaction database for education only — always confirm with your pharmacist. How we use AI
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HelloPharmacist Scorecard of 5-HTP 100 mg by SuperSmart
Four independent checks of what is known — a summary of the available information, not a grade of the product itself.
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed
The stated purpose hasn't been mapped to our evidence data yet.
Why this rating?
- We haven't mapped this product's purpose to our evidence data yet — it'll be graded on the next content refresh.
Every active ingredient lists its own amount on the label.
Why this rating?
- The label discloses an exact amount for 1 of its 1 active ingredient.
- “5-HTP” is listed as a grouped ingredient — the label gives one combined amount (100 mg) without saying how much of each component you get.
The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.
Why this rating?
- 1 of the 1 matched ingredient can interact with medications — Griffonia Simplicifolia.
- The most serious interaction on file is rated Moderate.
- Some involve high-stakes drug classes: Parkinson's medications.
- For scale: 317 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.
Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.
Why this rating?
- We hold adverse-effect (side-effect) data for 1 of the 1 matched ingredient.
- Pregnancy & breastfeeding safety ratings cover 1 of 1.
- General safety write-ups exist for 1 of 1.
- Remember: this measures how much safety information exists. Thin data is not the same as being safe.
HelloPharmacist summaryFully disclosed formula with no assessable stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.
Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Jun 25, 2025.
This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed
General information
Key facts about 5-HTP 100 mg, straight from the product label.
| Brand | SuperSmart |
|---|---|
| Barcode (UPC) | 5453003821168 |
| Net contents | 90 Vegetarian Capsule(s) |
| Market status | On market |
| Date entered into DSLD | Jun 25, 2025 |
| DSLD ID | 332594 |
| Product type | Amino Acid/protein |
| Supplement form | Capsule |
| Dietary claims / uses | Nutrient, All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years) |
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.
Supplement Facts
The label details for 5-HTP 100 mg by SuperSmart, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| 5-HTP | 100 mg | -- |
| Griffonia simplicifolia Extract | 102 mg | -- |
Other ingredients: Acacia Gum, White Rice Flour
Tap any ingredient to jump to its full detail below.
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Formulation
Emotional well-being
FDA Statement of Identity
Dietary Supplement
Formula
5-HTP 100 mg per day
Each capsule contains 50 mg of 5-HTP.
Suggested/Recommended/Usage/Directions
Directions: Adults. Take one or two capsules a day on an empty stomach, preferably two hours after your evening meal.
Precautions
Do not take at the same time as anti-depressants.
Do not take more than 200 mg a day without supervision by your therapist. Precautions: Do not exceed the recommended daily dose. This product is a nutritional supplement and should not replace a varied, balanced diet.
Keep out of childrens' reach.
As with any nutritional supplement, you should consult a health professional before taking this product if you are pregnant, breastfeeding or have a health problem.
Storage
Store away from direct light, heat and humidity.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
5-HTP 100 mg by SuperSmart label
The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.
Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.
View the full label (PDF)The Ingredients in 5-HTP 100 mg by SuperSmart
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size1 Capsule(s) Dosage formCapsule Servings per container45 Amounts shown are per serving.
5-HTP
Interacts with398 drugs
5-HTP is a compound your body uses to make serotonin, and people take it as a supplement hoping to improve mood, sleep, and headaches. Some early rese...
5-HTP monograph & interactionsOther (inactive) ingredients: Acacia Gum, White Rice Flour. These complete the product’s ingredient list but are not active constituents.
5-HTP 100 mg by SuperSmart Drug Interactions
5-HTP 100 mg contains a single active ingredient, and it has known interactions with 408 medications. Here’s the picture, then you can look up your own drug.
Want to check YOUR meds against 5-HTP 100 mg?
Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.
Go to the checkerIngredients driving the most interactions
Individual Drug Interactions
The ingredients in 5-HTP 100 mg interact with 408 drugs. Click any drug to see the details.
1 of the 1 ingredient in 5-HTP 100 mg interact with drugs. Each result below shows which ingredient is responsible. 5-HTP
Acetaminophen, Dextromethorphan, Phenylpropanolamine, PyrilamineTheracaps
How Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine interacts with 5-HTP 100 mg — through 2 ingredients. Tap an ingredient for the detail:
5-htpSerotonergic Drugs Moderate
Interaction Summary
Combining serotonergic drugs with 5-HTP might cause additive serotonergic effects.
Read the full 5-htp + Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine interactionGriffonia Simplicifolia ExtractDextromethorphan (robitussin Dm, Others) Moderate
Interaction Summary
Theoretically, taking Griffonia simplicifolia seed extract with dextromethorphan might increase the risk of serotonergic adverse effects, such as serotonin syndrome and cerebral vasoconstrictive disorders such as Call-Fleming syndrome.
Read the full Griffonia Simplicifolia Extract + Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine interactionAcetaminophen, Dextromethorphan, PseudoephedrineAlka-Seltzer PLUS Flu Liquid Gels, Non Aspirin Cold Caps, Tylenol Cold, Tylenol Flu Daytime Ex Strength, Tylenol Flu Ex Strength
How Acetaminophen, Dextromethorphan, Pseudoephedrine interacts with 5-HTP 100 mg — through 2 ingredients. Tap an ingredient for the detail:
Griffonia Simplicifolia ExtractDextromethorphan (robitussin Dm, Others) Moderate
Interaction Summary
Theoretically, taking Griffonia simplicifolia seed extract with dextromethorphan might increase the risk of serotonergic adverse effects, such as serotonin syndrome and cerebral vasoconstrictive disorders such as Call-Fleming syndrome.
Read the full Griffonia Simplicifolia Extract + Acetaminophen, Dextromethorphan, Pseudoephedrine interaction5-htpSerotonergic Drugs Moderate
Interaction Summary
Combining serotonergic drugs with 5-HTP might cause additive serotonergic effects.
Read the full 5-htp + Acetaminophen, Dextromethorphan, Pseudoephedrine interactionAcetaminophen, Dichloralantipyrine, IsomethepteneAmidrine, Midchlor, Migquin, Migratine
How Acetaminophen, Dichloralantipyrine, Isometheptene interacts with 5-HTP 100 mg — through 2 ingredients. Tap an ingredient for the detail:
Griffonia Simplicifolia ExtractCns Depressants Moderate
Interaction Summary
Theoretically, taking Griffonia simplicifolia seed extract with CNS depressants might increase the risk of additive CNS depression.
Read the full Griffonia Simplicifolia Extract + Acetaminophen, Dichloralantipyrine, Isometheptene interaction5-htpCns Depressants Moderate
Interaction Summary
Theoretically, concomitant use of 5-HTP with medications that cause sedation might have additive effects.
Read the full 5-htp + Acetaminophen, Dichloralantipyrine, Isometheptene interactionAcetaminophen, Dichloralphenazone, IsomethepteneMidrin
How Acetaminophen, Dichloralphenazone, Isometheptene interacts with 5-HTP 100 mg — through 2 ingredients. Tap an ingredient for the detail:
5-htpCns Depressants Moderate
Interaction Summary
Theoretically, concomitant use of 5-HTP with medications that cause sedation might have additive effects.
Read the full 5-htp + Acetaminophen, Dichloralphenazone, Isometheptene interactionGriffonia Simplicifolia ExtractCns Depressants Moderate
Interaction Summary
Theoretically, taking Griffonia simplicifolia seed extract with CNS depressants might increase the risk of additive CNS depression.
Read the full Griffonia Simplicifolia Extract + Acetaminophen, Dichloralphenazone, Isometheptene interactionAcetaminophen, Dichlorophenazone, IsometheptaneIsocom
How Acetaminophen, Dichlorophenazone, Isometheptane interacts with 5-HTP 100 mg — through 2 ingredients. Tap an ingredient for the detail:
Griffonia Simplicifolia ExtractCns Depressants Moderate
Interaction Summary
Theoretically, taking Griffonia simplicifolia seed extract with CNS depressants might increase the risk of additive CNS depression.
Read the full Griffonia Simplicifolia Extract + Acetaminophen, Dichlorophenazone, Isometheptane interaction5-htpCns Depressants Moderate
Interaction Summary
Theoretically, concomitant use of 5-HTP with medications that cause sedation might have additive effects.
Read the full 5-htp + Acetaminophen, Dichlorophenazone, Isometheptane interactionAcetaminophen, DiphenhydramineTylenol PM, Tylenol PM Ex Strength
How Acetaminophen, Diphenhydramine interacts with 5-HTP 100 mg — through 2 ingredients. Tap an ingredient for the detail:
5-htpCns Depressants Moderate
Interaction Summary
Theoretically, concomitant use of 5-HTP with medications that cause sedation might have additive effects.
Read the full 5-htp + Acetaminophen, Diphenhydramine interactionGriffonia Simplicifolia ExtractCns Depressants Moderate
Interaction Summary
Theoretically, taking Griffonia simplicifolia seed extract with CNS depressants might increase the risk of additive CNS depression.
Read the full Griffonia Simplicifolia Extract + Acetaminophen, Diphenhydramine interactionAcetaminophen, Diphenhydramine, PseudoephedrineChildren's Tylenol Allergy, Cold Control, Contac Night Allergy Relief
How Acetaminophen, Diphenhydramine, Pseudoephedrine interacts with 5-HTP 100 mg — through 2 ingredients. Tap an ingredient for the detail:
5-htpCns Depressants Moderate
Interaction Summary
Theoretically, concomitant use of 5-HTP with medications that cause sedation might have additive effects.
Read the full 5-htp + Acetaminophen, Diphenhydramine, Pseudoephedrine interactionGriffonia Simplicifolia ExtractCns Depressants Moderate
Interaction Summary
Theoretically, taking Griffonia simplicifolia seed extract with CNS depressants might increase the risk of additive CNS depression.
Read the full Griffonia Simplicifolia Extract + Acetaminophen, Diphenhydramine, Pseudoephedrine interactionAcetaminophen, HydrocodoneAnexsia, Anodynos DHC, Azdone, Co-Gesic, Doucet, Lorcet +9 more
How Acetaminophen, Hydrocodone interacts with 5-HTP 100 mg — through 2 ingredients. Tap an ingredient for the detail:
Griffonia Simplicifolia ExtractCns Depressants Moderate
Interaction Summary
Theoretically, taking Griffonia simplicifolia seed extract with CNS depressants might increase the risk of additive CNS depression.
Read the full Griffonia Simplicifolia Extract + Acetaminophen, Hydrocodone interaction5-htpCns Depressants Moderate
Interaction Summary
Theoretically, concomitant use of 5-HTP with medications that cause sedation might have additive effects.
Read the full 5-htp + Acetaminophen, Hydrocodone interactionAcetaminophen, MeperidineDemerol APAP
How Acetaminophen, Meperidine interacts with 5-HTP 100 mg — through 2 ingredients. Tap an ingredient for the detail:
5-htpCns Depressants, Serotonergic Drugs Moderate
Interaction Summary
Theoretically, concomitant use of 5-HTP with medications that cause sedation might have additive effects.
Read the full 5-htp + Acetaminophen, Meperidine interactionGriffonia Simplicifolia ExtractCns Depressants, Meperidine (demerol) Moderate
Interaction Summary
Theoretically, taking Griffonia simplicifolia seed extract with CNS depressants might increase the risk of additive CNS depression.
Read the full Griffonia Simplicifolia Extract + Acetaminophen, Meperidine interactionAcetaminophen, OxycodonePercocet, Roxicet, Tylox, Xartemis XR
How Acetaminophen, Oxycodone interacts with 5-HTP 100 mg — through 2 ingredients. Tap an ingredient for the detail:
Griffonia Simplicifolia ExtractCns Depressants Moderate
Interaction Summary
Theoretically, taking Griffonia simplicifolia seed extract with CNS depressants might increase the risk of additive CNS depression.
Read the full Griffonia Simplicifolia Extract + Acetaminophen, Oxycodone interaction5-htpCns Depressants Moderate
Interaction Summary
Theoretically, concomitant use of 5-HTP with medications that cause sedation might have additive effects.
Read the full 5-htp + Acetaminophen, Oxycodone interactionAcetaminophen, PentazocineTalacen
How Acetaminophen, Pentazocine interacts with 5-HTP 100 mg — through 2 ingredients. Tap an ingredient for the detail:
5-htpCns Depressants Moderate
Interaction Summary
Theoretically, concomitant use of 5-HTP with medications that cause sedation might have additive effects.
Read the full 5-htp + Acetaminophen, Pentazocine interactionGriffonia Simplicifolia ExtractCns Depressants, Pentazocine (talwin) Moderate
Interaction Summary
Theoretically, taking Griffonia simplicifolia seed extract with CNS depressants might increase the risk of additive CNS depression.
Read the full Griffonia Simplicifolia Extract + Acetaminophen, Pentazocine interactionAcetaminophen, Phenylephrine, ChlorpheniramineSuper Cold Tabs
How Acetaminophen, Phenylephrine, Chlorpheniramine interacts with 5-HTP 100 mg — through 1 ingredient. Tap an ingredient for the detail:
5-htpSerotonergic Drugs Moderate
Interaction Summary
Combining serotonergic drugs with 5-HTP might cause additive serotonergic effects.
Read the full 5-htp + Acetaminophen, Phenylephrine, Chlorpheniramine interactionAcetaminophen, PropoxypheneDarvocet-N 100, Darvocet-N 50, E-Lor, Wygesic
How Acetaminophen, Propoxyphene interacts with 5-HTP 100 mg — through 2 ingredients. Tap an ingredient for the detail:
Griffonia Simplicifolia ExtractCns Depressants Moderate
Interaction Summary
Theoretically, taking Griffonia simplicifolia seed extract with CNS depressants might increase the risk of additive CNS depression.
Read the full Griffonia Simplicifolia Extract + Acetaminophen, Propoxyphene interaction5-htpCns Depressants Moderate
Interaction Summary
Theoretically, concomitant use of 5-HTP with medications that cause sedation might have additive effects.
Read the full 5-htp + Acetaminophen, Propoxyphene interactionAcetazolamideAk-Zol, Diamox
How Acetazolamide interacts with 5-HTP 100 mg — through 2 ingredients. Tap an ingredient for the detail:
5-htpCns Depressants Moderate
Interaction Summary
Theoretically, concomitant use of 5-HTP with medications that cause sedation might have additive effects.
Read the full 5-htp + Acetazolamide interactionGriffonia Simplicifolia ExtractCns Depressants Moderate
Interaction Summary
Theoretically, taking Griffonia simplicifolia seed extract with CNS depressants might increase the risk of additive CNS depression.
Read the full Griffonia Simplicifolia Extract + Acetazolamide interactionAgomelatineValdoxan
How Agomelatine interacts with 5-HTP 100 mg — through 1 ingredient. Tap an ingredient for the detail:
Griffonia Simplicifolia ExtractAntidepressant Drugs Moderate
Interaction Summary
Theoretically, taking Griffonia simplicifolia seed extract with antidepressant drugs might increase the risk of serotonergic adverse effects, such as serotonin syndrome and cerebral vasoconstrictive disorders such as Call-Fleming syndrome.
Read the full Griffonia Simplicifolia Extract + Agomelatine interactionAlfentanilAlfenta
How Alfentanil interacts with 5-HTP 100 mg — through 2 ingredients. Tap an ingredient for the detail:
Griffonia Simplicifolia ExtractCns Depressants Moderate
Interaction Summary
Theoretically, taking Griffonia simplicifolia seed extract with CNS depressants might increase the risk of additive CNS depression.
Read the full Griffonia Simplicifolia Extract + Alfentanil interaction5-htpCns Depressants Moderate
Interaction Summary
Theoretically, concomitant use of 5-HTP with medications that cause sedation might have additive effects.
Read the full 5-htp + Alfentanil interactionAlmotriptanAlmogran, Axert
How Almotriptan interacts with 5-HTP 100 mg — through 1 ingredient. Tap an ingredient for the detail:
5-htpSerotonergic Drugs Moderate
Interaction Summary
Combining serotonergic drugs with 5-HTP might cause additive serotonergic effects.
Read the full 5-htp + Almotriptan interactionAlosetronLotronex
How Alosetron interacts with 5-HTP 100 mg — through 1 ingredient. Tap an ingredient for the detail:
5-htpSerotonergic Drugs Moderate
Interaction Summary
Combining serotonergic drugs with 5-HTP might cause additive serotonergic effects.
Read the full 5-htp + Alosetron interactionAlprazolamNiravam, Xanax
How Alprazolam interacts with 5-HTP 100 mg — through 2 ingredients. Tap an ingredient for the detail:
5-htpCns Depressants Moderate
Interaction Summary
Theoretically, concomitant use of 5-HTP with medications that cause sedation might have additive effects.
Read the full 5-htp + Alprazolam interactionGriffonia Simplicifolia ExtractCns Depressants Moderate
Interaction Summary
Theoretically, taking Griffonia simplicifolia seed extract with CNS depressants might increase the risk of additive CNS depression.
Read the full Griffonia Simplicifolia Extract + Alprazolam interactionAluminum Hydroxide, Aspirin, Codeine Phosphate, Magnesium HydroxideAscriptin Codeine #2
How Aluminum Hydroxide, Aspirin, Codeine Phosphate, Magnesium Hydroxide interacts with 5-HTP 100 mg — through 2 ingredients. Tap an ingredient for the detail:
Griffonia Simplicifolia ExtractCns Depressants Moderate
Interaction Summary
Theoretically, taking Griffonia simplicifolia seed extract with CNS depressants might increase the risk of additive CNS depression.
Read the full Griffonia Simplicifolia Extract + Aluminum Hydroxide, Aspirin, Codeine Phosphate, Magnesium Hydroxide interaction5-htpCns Depressants Moderate
Interaction Summary
Theoretically, concomitant use of 5-HTP with medications that cause sedation might have additive effects.
Read the full 5-htp + Aluminum Hydroxide, Aspirin, Codeine Phosphate, Magnesium Hydroxide interactionAminoglutethimideCytadren
How Aminoglutethimide interacts with 5-HTP 100 mg — through 2 ingredients. Tap an ingredient for the detail:
5-htpCns Depressants Moderate
Interaction Summary
Theoretically, concomitant use of 5-HTP with medications that cause sedation might have additive effects.
Read the full 5-htp + Aminoglutethimide interactionGriffonia Simplicifolia ExtractCns Depressants Moderate
Interaction Summary
Theoretically, taking Griffonia simplicifolia seed extract with CNS depressants might increase the risk of additive CNS depression.
Read the full Griffonia Simplicifolia Extract + Aminoglutethimide interactionAminophylline, Amobarbital, EphedrineAmesec
How Aminophylline, Amobarbital, Ephedrine interacts with 5-HTP 100 mg — through 2 ingredients. Tap an ingredient for the detail:
Griffonia Simplicifolia ExtractCns Depressants Moderate
Interaction Summary
Theoretically, taking Griffonia simplicifolia seed extract with CNS depressants might increase the risk of additive CNS depression.
Read the full Griffonia Simplicifolia Extract + Aminophylline, Amobarbital, Ephedrine interaction5-htpCns Depressants Moderate
Interaction Summary
Theoretically, concomitant use of 5-HTP with medications that cause sedation might have additive effects.
Read the full 5-htp + Aminophylline, Amobarbital, Ephedrine interactionAmitriptylineElavil
How Amitriptyline interacts with 5-HTP 100 mg — through 2 ingredients. Tap an ingredient for the detail:
5-htpCns Depressants, Serotonergic Drugs Moderate
Interaction Summary
Theoretically, concomitant use of 5-HTP with medications that cause sedation might have additive effects.
Read the full 5-htp + Amitriptyline interactionGriffonia Simplicifolia ExtractAntidepressant Drugs, Cns Depressants Moderate
Interaction Summary
Theoretically, taking Griffonia simplicifolia seed extract with antidepressant drugs might increase the risk of serotonergic adverse effects, such as serotonin syndrome and cerebral vasoconstrictive disorders such as Call-Fleming syndrome.
Read the full Griffonia Simplicifolia Extract + Amitriptyline interactionAmitriptyline, ChlordiazepoxideLimbitrol DS
How Amitriptyline, Chlordiazepoxide interacts with 5-HTP 100 mg — through 2 ingredients. Tap an ingredient for the detail:
Griffonia Simplicifolia ExtractCns Depressants, Antidepressant Drugs Moderate
Interaction Summary
Theoretically, taking Griffonia simplicifolia seed extract with CNS depressants might increase the risk of additive CNS depression.
Read the full Griffonia Simplicifolia Extract + Amitriptyline, Chlordiazepoxide interaction5-htpSerotonergic Drugs, Cns Depressants Moderate
Interaction Summary
Combining serotonergic drugs with 5-HTP might cause additive serotonergic effects.
Read the full 5-htp + Amitriptyline, Chlordiazepoxide interactionAmitriptyline, PerphenazineEtrafon, Etrafon-A, Etrafon-Forte, Triavil
How Amitriptyline, Perphenazine interacts with 5-HTP 100 mg — through 2 ingredients. Tap an ingredient for the detail:
Griffonia Simplicifolia ExtractAntidepressant Drugs, Cns Depressants Moderate
Interaction Summary
Theoretically, taking Griffonia simplicifolia seed extract with antidepressant drugs might increase the risk of serotonergic adverse effects, such as serotonin syndrome and cerebral vasoconstrictive disorders such as Call-Fleming syndrome.
Read the full Griffonia Simplicifolia Extract + Amitriptyline, Perphenazine interaction5-htpSerotonergic Drugs, Cns Depressants Moderate
Interaction Summary
Combining serotonergic drugs with 5-HTP might cause additive serotonergic effects.
Read the full 5-htp + Amitriptyline, Perphenazine interactionAmobarbitalAmytal
How Amobarbital interacts with 5-HTP 100 mg — through 2 ingredients. Tap an ingredient for the detail:
5-htpCns Depressants Moderate
Interaction Summary
Theoretically, concomitant use of 5-HTP with medications that cause sedation might have additive effects.
Read the full 5-htp + Amobarbital interactionGriffonia Simplicifolia ExtractCns Depressants Moderate
Interaction Summary
Theoretically, taking Griffonia simplicifolia seed extract with CNS depressants might increase the risk of additive CNS depression.
Read the full Griffonia Simplicifolia Extract + Amobarbital interactionAmobarbital, Ephedrine SulfateEphedrine & Amytal
How Amobarbital, Ephedrine Sulfate interacts with 5-HTP 100 mg — through 2 ingredients. Tap an ingredient for the detail:
Griffonia Simplicifolia ExtractCns Depressants Moderate
Interaction Summary
Theoretically, taking Griffonia simplicifolia seed extract with CNS depressants might increase the risk of additive CNS depression.
Read the full Griffonia Simplicifolia Extract + Amobarbital, Ephedrine Sulfate interaction5-htpCns Depressants Moderate
Interaction Summary
Theoretically, concomitant use of 5-HTP with medications that cause sedation might have additive effects.
Read the full 5-htp + Amobarbital, Ephedrine Sulfate interactionAmobarbital, SecobarbitalTuinal
How Amobarbital, Secobarbital interacts with 5-HTP 100 mg — through 2 ingredients. Tap an ingredient for the detail:
5-htpCns Depressants Moderate
Interaction Summary
Theoretically, concomitant use of 5-HTP with medications that cause sedation might have additive effects.
Read the full 5-htp + Amobarbital, Secobarbital interactionGriffonia Simplicifolia ExtractCns Depressants Moderate
Interaction Summary
Theoretically, taking Griffonia simplicifolia seed extract with CNS depressants might increase the risk of additive CNS depression.
Read the full Griffonia Simplicifolia Extract + Amobarbital, Secobarbital interactionAmoxapineAsendin
How Amoxapine interacts with 5-HTP 100 mg — through 2 ingredients. Tap an ingredient for the detail:
5-htpSerotonergic Drugs Moderate
Interaction Summary
Combining serotonergic drugs with 5-HTP might cause additive serotonergic effects.
Read the full 5-htp + Amoxapine interactionGriffonia Simplicifolia ExtractAntidepressant Drugs Moderate
Interaction Summary
Theoretically, taking Griffonia simplicifolia seed extract with antidepressant drugs might increase the risk of serotonergic adverse effects, such as serotonin syndrome and cerebral vasoconstrictive disorders such as Call-Fleming syndrome.
Read the full Griffonia Simplicifolia Extract + Amoxapine interactionAmphetamineAdensys XR-ODT, Adzenys ER, Dyanavel XR, Mydayis
How Amphetamine interacts with 5-HTP 100 mg — through 1 ingredient. Tap an ingredient for the detail:
Griffonia Simplicifolia ExtractMonoamine Oxidase Inhibitors (maois) Moderate
Interaction Summary
Theoretically, taking Griffonia simplicifolia seed extract with MAOIs might increase the risk of serotonergic adverse effects, such as serotonin syndrome and cerebral vasoconstrictive disorders such as Call-Fleming syndrome.
Read the full Griffonia Simplicifolia Extract + Amphetamine interactionEach ingredient & the kinds of drugs it affects
For each ingredient in 5-HTP 100 mg with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.
5-HTP
Carbidopa (Lodosyn)
Combining 5-HTP and carbidopa can increase the risk of serotonergic side effects.
Carbidopa is sometimes used with 5-HTP to minimize peripheral 5-HTP metabolism and boost the amount that reaches the brain. However, this combination might also increase the risk of some side effects including hypomania, restlessness, rapid speech, anxiety, insomnia, and aggressiveness. Combining carbidopa and 5-HTP might also increase the risk of scleroderma-like skin changes due to elevated serotonin levels.
Cns Depressants
Theoretically, concomitant use of 5-HTP with medications that cause sedation might have additive effects.
In clinical trials, 5-HTP has been associated with drowsiness and somnolence.
Serotonergic Drugs
Combining serotonergic drugs with 5-HTP might cause additive serotonergic effects.
5-HTP can increase serotonin levels and cause serotonergic effects. Theoretically, combining serotonergic drugs with 5-HTP might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders. However, serotonin syndrome with 5-HTP has not yet been reported in humans. Monitor patients for signs of serotonin syndrome and other serotonergic side effects if using 5-HTP with serotonergic drugs.
Brand information
Manufacturer and brand details for 5-HTP 100 mg, from the product label.
SuperSmart
See all SuperSmart products- Name
- SN Worldwide Unipessoal, Lda
- Street Address
- Avenida Do Infante 66, Edificio Quinta Avenida 1 C
- City
- Funchal
- ZipCode
- 9000-015
5-HTP 100 mg by SuperSmart: Common Questions
Does 5-HTP 100 mg by SuperSmart interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if 5-HTP 100 mg is safe with your meds?
Our pharmacists answer your medication & supplement questions — free.
Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.
The Full Monographs Behind 5-HTP 100 mg’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
5-htp
Interacts with 398 drugs5-HTP is a compound your body uses to make serotonin, and people take it as a supplement hoping to improve mood, sleep, and headaches. Some early research is promising, but the overall evide...
Read the full 5-htp monograph → Herb & supplement monographGriffonia Simplicifolia
Interacts with 317 drugsGriffonia simplicifolia is a West African shrub whose seeds are a natural source of 5-HTP, a building block of the brain chemical serotonin. Some people use it for mood, sleep, and appetite,...
Read the full Griffonia Simplicifolia monograph →Sources & How We Checked
5-HTP 100 mg's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.
- NIH Dietary Supplement Label Database (DSLD) — The official product label on file for this supplement.
- Natural Medicines (Therapeutic Research Center) — Evidence-graded clinical reference behind the ingredient interaction data.
Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.
The 54 references behind this product’s interaction data
Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.
5-htp 32 references
- Birdsall TC. 5-Hydroxytryptophan: A Clinically-Effective Serotonin Precursor. Altern Med Rev 1998;3:271-80.
- Michelson D, Page SW, Casey R, et al. An eosinophilia-myalgia syndrome related disorder associated with exposure to L-5-hydroxytryptophan. J Rheumatol 1994;21:2261-5.
- Cangiano C, Ceci F, Cancino A, et al. Eating behavior and adherence to dietary prescriptions in obese adult subjects treated with 5-hydroxytryptophan. Am J Clin Nutr 1992;56:863-7. PubMed
- U.S. Food and Drug Administration. Impurities confirmed in dietary supplement 5-hydroxy-L-tryptophan. FDA Talk Paper, August 31, 1998; T98-48.
- Sternberg EM, Van Woert MH, Young SN, et al. Development of a scleroderma-like illness during therapy with L-5-hydroxytryptophan and carbidopa. N Engl J Med 1980;303:782-7. PubMed
- Poldinger W, Calanchini B, Schwarz W. A functional-dimensional approach to depression: serotonin deficiency as a target syndrome in a comparison of 5-hydroxytryptophan and fluvoxamine. Psychopathology 1991;24:53-81.
- Ribeiro CA. L-5-Hydroxytryptophan in the prophylaxis of chronic tension-type headache: a double-blind, randomized, placebo-controlled study. Headache 2000;40:451-6.
- U. S. Food and Drug Administration, Center for Food Safety and Applied Nutrition, Office of Nutritional Products, Labeling, and Dietary Supplements. Information Paper on L-Tryptophan and 5-hydroxy-L-tryptophan, February 2001.
- Singhal AB, Caviness VS, Begleiter AF, et al. Cerebral vasoconstriction and stroke after use of serotonergic drugs. Neurology 2002;58:130-3. PubMed
- Johnson KL, Klarskov K, Benson LM, et al. Presence of peak X and related compounds: the reported contaminant in case related 5-hydroxy-L-tryptophan associated with eosinophilia-myalgia syndrome. J Rheumatol 1999;26:2714-7.
- Takahashi S, Kondo H, Kato N. Effect of l-5-hydroxytryptophan on brain monoamine metabolism and evaluation of its clinical effect in depressed patients. J Psychiatr Res 1975;12:177-87. PubMed
- Iovieno, N., Dalton, E. D., Fava, M., and Mischoulon, D. Second-tier natural antidepressants: review and critique. J Affect.Disord. 2011;130(3):343-357. PubMed
- den Boer JA, Westenberg HG. Behavioral, neuroendocrine, and biochemical effects of 5-hydroxytryptophan administration in panic disorder. Psychiatry Res 1990;31:267-78. PubMed
- Jangid P, Malik P, Singh P, Sharma M, Gulia AK. Comparative study of efficacy of l-5-hydroxytryptophan and fluoxetine in patients presenting with first depressive episode. Asian J Psychiatr 2013;6:29-34. PubMed
- Ceci F, Cangiano C, Cairella M, et al. The effects of oral 5-hydroxytryptophan administration on feeding behavior in obese adult female subjects. J Neural Transm 1989;76:109-17. PubMed
- Angst J, Woggon B, Schoepf J. The treatment of depression with L-5-hydroxytryptophan versus imipramine. Results of two open and one double-blind study. Arch Psychiatr Nervenkr 1977;224:175-86. DOI
- Titus F, Dávalos A, Alom J, Codina A. 5-Hydroxytryptophan versus methysergide in the prophylaxis of migraine. Randomized clinical trial. Eur Neurol 1986;25:327-9. PubMed
- De Benedittis G, Massei R. Serotonin precursors in chronic primary headache. A double-blind cross-over study with L-5-hydroxytryptophan vs. placebo. J Neurosurg Sci 1985;29:239-48.
- Van Woert, M. H., Rosenbaum, D., Howieson, J., and Bowers, M. B., Jr. Long-term therapy of myoclonus and other neurologic disorders with L-5- hydroxytryptophan and carbidopa. N Engl J Med 1-13-1977;296(2):70-75. PubMed
- Wyatt, R. J., Vaughan, T., Galanter, M., Kaplan, J., and Green, R. Behavioral changes of chronic schizophrenic patients given L-5- hydroxytryptophan. Science 9-22-1972;177(54):1124-1126. PubMed
- Chase, T. N., Ng, L. K., and Watanabe, A. M. Parkinson's disease. Modification by 5-hydroxytryptophan. Neurology 1972;22(5):479-484.
- van Hiele LJ. l-5-Hydroxytryptophan in depression: the first substitution therapy in psychiatry? The treatment of 99 out-patients with 'therapy-resistant' depressions. Neuropsychobiology 1980;6:230-40. PubMed
- Pranzatelli, M. R., Tate, E., Huang, Y., Haas, R. H., Bodensteiner, J., Ashwal, S., and Franz, D. Neuropharmacology of progressive myoclonus epilepsy: response to 5- hydroxy-L-tryptophan. Epilepsia 1995;36(8):783-791. PubMed
- Trouillas P, Serratrice G, Laplane D, et al. Levorotatory form of 5-hydroxytryptophan in Friedreich's ataxia. Results of a double-blind drug-placebo cooperative study. Arch Neurol 1995;52:456-60. PubMed
- Bastard, J., Truelle, J. L., and Emile, J. [Effectiveness of 5 hydroxy-tryptophan in Parkinson's disease]. Nouv Presse Med 9-11-1976;5(29):1836-1837.
- Auffret, M., Comte, H., and Bene, J. Eosinophilia-myalgia syndrome induced by L-5 hydroxytryptophane: about three cases. Fund Clin Pharmacol 2013;Suppl 1(120):poster P2-204.
- Wyatt, R. J., Vaughan, T., Kaplan, J., Galanter, M., and Green, R. 5-Hydroxytryptophan and chronic schizophrenia. In: Barchas J and Usdin E. Serotonin and Behavior. New York: Acedemic Press;1973.
- Das YT, Bagchi M, Bagchi D, Preuss HG. Safety of 5-hydroxy-L-tryptophan. Toxicol Lett 2004;150:111-22. PubMed
- Pardo JV. Mania following addition of hydroxytryptophan to monoamine oxidase inhibitor. Gen Hosp Psychiatry 2012;34(1):102.e13-4. PubMed
- Michelson D, Page SW, Casey R, et al. An eosinophilia-myaligia syndrome related disorder associated with exposure to l-5-hydroxytryptophan. J Rheumatol 1994;21(12):2261-5.
- Yousefzadeh F, Sahebolzamani E, Sadri A, et al. 5-Hydroxytryptophan as adjuvant therapy in treatment of moderate to severe obsessive-compulsive disorder: a double-blind randomized trial with placebo control. Int Clin Psychopharmacol. 2020;35(5):254-262. PubMed
- Maffei ME. 5-Hydroxytryptophan (5-HTP): Natural Occurrence, Analysis, Biosynthesis, Biotechnology, Physiology and Toxicology. Int J Mol Sci. 2020;22(1):181. PubMed
Griffonia Simplicifolia 22 references
- Cangiano C, Ceci F, Cancino A, et al. Eating behavior and adherence to dietary prescriptions in obese adult subjects treated with 5-hydroxytryptophan. Am J Clin Nutr 1992;56:863-7. PubMed
- U.S. Food and Drug Administration. Impurities confirmed in dietary supplement 5-hydroxy-L-tryptophan. FDA Talk Paper, August 31, 1998; T98-48.
- Sternberg EM, Van Woert MH, Young SN, et al. Development of a scleroderma-like illness during therapy with L-5-hydroxytryptophan and carbidopa. N Engl J Med 1980;303:782-7. PubMed
- Poldinger W, Calanchini B, Schwarz W. A functional-dimensional approach to depression: serotonin deficiency as a target syndrome in a comparison of 5-hydroxytryptophan and fluvoxamine. Psychopathology 1991;24:53-81.
- Ribeiro CA. L-5-Hydroxytryptophan in the prophylaxis of chronic tension-type headache: a double-blind, randomized, placebo-controlled study. Headache 2000;40:451-6.
- U. S. Food and Drug Administration, Center for Food Safety and Applied Nutrition, Office of Nutritional Products, Labeling, and Dietary Supplements. Information Paper on L-Tryptophan and 5-hydroxy-L-tryptophan, February 2001.
- Singhal AB, Caviness VS, Begleiter AF, et al. Cerebral vasoconstriction and stroke after use of serotonergic drugs. Neurology 2002;58:130-3. PubMed
- Johnson KL, Klarskov K, Benson LM, et al. Presence of peak X and related compounds: the reported contaminant in case related 5-hydroxy-L-tryptophan associated with eosinophilia-myalgia syndrome. J Rheumatol 1999;26:2714-7.
- Iovieno, N., Dalton, E. D., Fava, M., and Mischoulon, D. Second-tier natural antidepressants: review and critique. J Affect.Disord. 2011;130(3):343-357. PubMed
- den Boer JA, Westenberg HG. Behavioral, neuroendocrine, and biochemical effects of 5-hydroxytryptophan administration in panic disorder. Psychiatry Res 1990;31:267-78. PubMed
- Jangid P, Malik P, Singh P, Sharma M, Gulia AK. Comparative study of efficacy of l-5-hydroxytryptophan and fluoxetine in patients presenting with first depressive episode. Asian J Psychiatr 2013;6:29-34. PubMed
- Ceci F, Cangiano C, Cairella M, et al. The effects of oral 5-hydroxytryptophan administration on feeding behavior in obese adult female subjects. J Neural Transm 1989;76:109-17. PubMed
- Angst J, Woggon B, Schoepf J. The treatment of depression with L-5-hydroxytryptophan versus imipramine. Results of two open and one double-blind study. Arch Psychiatr Nervenkr 1977;224:175-86. DOI
- Titus F, Dávalos A, Alom J, Codina A. 5-Hydroxytryptophan versus methysergide in the prophylaxis of migraine. Randomized clinical trial. Eur Neurol 1986;25:327-9. PubMed
- De Benedittis G, Massei R. Serotonin precursors in chronic primary headache. A double-blind cross-over study with L-5-hydroxytryptophan vs. placebo. J Neurosurg Sci 1985;29:239-48.
- Wyatt, R. J., Vaughan, T., Galanter, M., Kaplan, J., and Green, R. Behavioral changes of chronic schizophrenic patients given L-5- hydroxytryptophan. Science 9-22-1972;177(54):1124-1126. PubMed
- van Hiele LJ. l-5-Hydroxytryptophan in depression: the first substitution therapy in psychiatry? The treatment of 99 out-patients with 'therapy-resistant' depressions. Neuropsychobiology 1980;6:230-40. PubMed
- Pranzatelli, M. R., Tate, E., Huang, Y., Haas, R. H., Bodensteiner, J., Ashwal, S., and Franz, D. Neuropharmacology of progressive myoclonus epilepsy: response to 5- hydroxy-L-tryptophan. Epilepsia 1995;36(8):783-791. PubMed
- Trouillas P, Serratrice G, Laplane D, et al. Levorotatory form of 5-hydroxytryptophan in Friedreich's ataxia. Results of a double-blind drug-placebo cooperative study. Arch Neurol 1995;52:456-60. PubMed
- Pardo JV. Mania following addition of hydroxytryptophan to monoamine oxidase inhibitor. Gen Hosp Psychiatry 2012;34(1):102.e13-4. PubMed
- Lemaire PA, Adosraku RK. An HPLC method for the direct assay of the serotonin precursor, 5-hydroxytrophan, in seeds of Griffonia simplicifolia. Phytochem Anal 2002;13(6):333-7.
- Esposito M, Precenzano F, Sorrentino M, Avolio D, Carotenuto M. A medical food formulation of Griffonia simplicifolia/magnesium for childhood periodic syndrome therapy: an open-label study on motion sickness. J Med Food 2015;18(8):916-20.
See these in context on the Griffonia Simplicifolia monograph →
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DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.
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