Interactions on record — worth a quick check against your medications. Check your meds →
Dietary supplement

Rapid Sleep PM Extra 6 mg Melatonin Ingredients & Drug Interactions

by Applied Nutrition

Rapid Sleep PM Extra 6 mg Melatonin label
See full label image
Tablet Or Pill Category: Other Combinations
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Rapid Sleep PM Extra 6 mg Melatonin 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

The interaction bottom line Most serious interaction: Moderate

Rapid Sleep PM Extra 6 mg Melatonin is a dietary supplement by Applied Nutrition with 4 active ingredients. Its ingredients are commonly taken for trouble falling asleep (insomnia), jet lag, delayed sleep phase syndrome.Based on those ingredients, 1,488 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Melatonin, Chamomile powder, Hops powder. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

Jump to a section

Check Your Meds Against Rapid Sleep PM Extra 6 mg Melatonin by Applied Nutrition

Ask about any prescription or over-the-counter medication and we check it for interactions with Rapid Sleep PM Extra 6 mg Melatonin by Applied Nutrition — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Rapid Sleep PM Extra 6 mg Melatonin by Applied Nutrition

Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Jul 11, 2026

What’s inside

Low disclosure
Ingredient Transparency · database check
Low

Most active ingredients don't disclose an individual amount — you can't tell how much of each you're getting.

Why this rating?
  • The label discloses an exact amount for 1 of its 4 active ingredients.
  • “Relax and Unwind Blend” is a proprietary blend — the label gives one combined amount (800 mg) without saying how much of each component you get.

This product contains 4 active ingredients: melatonin (6 mg), passionflower powder, hops powder, and a chamomile powder within a "Relax and Unwind Blend." The melatonin is the primary sleep-promoting ingredient; passionflower and hops are herbal ingredients traditionally used to support relaxation and sleep, and chamomile is a common calming herb. The tablet also contains inactive ingredients like microcrystalline cellulose, dicalcium phosphate, and magnesium stearate, which are typical fillers, binders, and flow agents in supplement tablets.

Does it work?

Strong evidence
Evidence for Intended Use · database check
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
Strong

Clinical evidence supports at least one of this product's ingredients for its stated purpose.

Why this rating?
  • The label markets this product for: Fall asleep faster and sleep more soundly.
  • We looked for evidence on: Insomnia, Delayed sleep phase syndrome (DSPS), Jet lag, Non-24-hour sleep wake disorder, Beta blocker-induced insomnia, Postoperative sleep disturbance — and 4 related terms.
  • The strongest evidence on file: Melatonin is rated "Likely Effective" for Delayed sleep phase syndrome (DSPS) (Natural Medicines).
  • Also on file: Melatonin is rated "Likely Effective" for Non-24-hour sleep wake disorder.
  • Also on file: Passion Flower is rated "Possibly Effective" for Insomnia.

Melatonin is likely effective for non-24-hour sleep-wake disorder and delayed sleep phase syndrome (DSPS)—conditions where your natural sleep timing is off. It's also possibly effective for pre-procedural anxiety (anxiety before a medical or dental procedure) and may help lower blood pressure in some people.

Passionflower is possibly effective for insomnia and pre-procedural anxiety, though the evidence isn't as strong. Hops has insufficient evidence to rate for any condition in our data, meaning the research so far doesn't establish whether it works.

Chamomile's effectiveness isn't established in the data we hold.

The evidence, ingredient by ingredient Melatonin Passion Flower German Chamomile Hops

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

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 4 of the 4 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 4 of 4.
  • General safety write-ups exist for 4 of 4.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Melatonin is generally well tolerated for short-term use, but long-term safety is less certain. The most common side effects are dizziness, drowsiness, headache, and nausea.

Rare serious concerns include possible increased seizure risk and mood changes like depression, nervousness, or in very rare cases, delusions. Passionflower is also well tolerated short-term and commonly causes dizziness, confusion, and sedation.

Hops is generally well tolerated but may cause drowsiness, and long-term safety isn't well studied. Because you're pregnant, the safety data advises against passionflower and hops; melatonin's pregnancy safety is not on file, so talk with your doctor or pharmacist before use.

Similarly, all three ingredients should be avoided while breastfeeding unless your doctor advises otherwise.

Side effects, ingredient by ingredient Melatonin Passion Flower German Chamomile Hops

Meds to double-check

Moderate interaction found
Known Interaction Concern · database check
Moderate identified

The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.

Why this rating?
  • 4 of the 4 matched ingredients can interact with medications — Hops, Passion Flower, Melatonin, German Chamomile.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; seizure medications; immunosuppressants / transplant drugs; diabetes medications.
  • For scale: 1,489 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.

Before you take this product, double-check if you're on blood thinners (anticoagulants) like warfarin—melatonin may increase bleeding risk. Also check for heart medications (especially extended-release nifedipine), diabetes drugs, seizure medications, blood pressure drugs, immunosuppressants, or any sedative medications (including sleep aids, anti-anxiety drugs, and some pain relievers).

Passionflower and hops will add to the effect of sedatives, and melatonin may affect how some of these drugs work in your body.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFormula with limited ingredient disclosure with clinical evidence supporting its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

This product is designed for sleep support and works best if you have a confirmed sleep timing issue like delayed sleep phase syndrome. Because it contains multiple ingredients that interact with many common medications—especially blood thinners, heart drugs, diabetes medications, and sedatives—check your exact prescriptions with the tool on this page before you start.

If you're pregnant or breastfeeding, talk with your pharmacist or doctor first.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 4 of 4 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Aug 24, 2016.

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

At a glance

General information

Key facts about Rapid Sleep PM Extra 6 mg Melatonin, straight from the product label.

Brand Applied Nutrition
Barcode (UPC) 710363583729
Net contents 40 Tablet(s)
Market status On market
Date entered into DSLD Aug 24, 2016
DSLD ID 64162
Product type Other Combinations
Supplement form Tablet Or Pill
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years)
From the label
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 Rapid Sleep PM Extra 6 mg Melatonin by Applied Nutrition, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
2 Tablet(s)
Maximum serving Sizes:
2 Tablet(s)
Servings per container
20
UPC/BARCODE
710363583729
IngredientAmount% DV
Melatonin6 mg--
Passionflower powder0 NP--
Relax and Unwind Blend800 mg--
Chamomile powder0 NP--
Hops powder0 NP--

Other ingredients: Microcrystalline Cellulose, Dicalcium Phosphate Anhydrous, Stearic Acid, Silicon Dioxide, Croscarmellose Sodium, Magnesium Stearate, Sodium Carboxymethylcellulose, Dextrose, Soy Lecithin, Sodium Citrate, Dextrin

Tap any ingredient to jump to its full detail below.

Label statements
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.
Precautions

Do not use in conjunction with alcoholic beverages, when driving a vehicle, or while operating machinery. Do not use if safety seal is broken.

Contains: Soy

Usage Warnings: Use only at bedtime.

Check with your doctor before using this product if you are using medication or have any medical conditions. Do not use if you may become pregnant, are pregnant or nursing.

Do not exceed recommended daily intake.

Not intended for use by persons under 18. Keep out of reach of children.

Warning: (State of California Prop 65) This product contains a chemical known to the State of California to cause birth defects or other reproductive harm.

Suggested/Recommended/Usage/Directions

Directions (Adult) For relief of occasional sleeplessness, take two (2) tablets 30 minutes before bed with a glass of water.

6 mg Melatonin per night

Formula

Higher Potency Melatonin Formula plus Chamomile

Plus, it features 6 mg of melatonin to help you fall asleep faster and to promote deeper sleep.

plus Soothing Chamomile

Contains: Soy

General Statements

Fall asleep faster, sleep more soundly and wake up refreshed

6923-BOX-AN078372-V2-10/15

Optimal Sleep Cycle Relax Fall Alseep Fast Sleep Soundly Feel Refreshed

Promote Relaxation, Fall Asleep Faster, Improve Sleep Quality & Wake Up Refreshed

The higher potency melatonin formula that helps you fall asleep faster!

Tips for better sleep: Avoid eating late at night, as this can make it hard for your body to relax into a state of sleep. Turn off the television, stereo and computer 30 minutes before bed to help calm your mind. Remove clutter from your bedroom to create a sense of peace in your surroundings. Make sleeping the primary activity in bed. Watching television, reading, eating or doing work in bed can make it difficult to transition into sleep. Keep a notepad and pen next to your bed to release thoughts that may pop up during the night and keep you from falling back to sleep.

This unique formula is designed to help counteract the effects of stress and to help guide you into deep, restorative sleep.

FDA Statement of Identity

Dietary Supplement

Brand IP Statement(s)

Applied Nutrition is committed to developing science-based products that exceed the highest standards for quality and purity. As a leader in innovation, we continuously strive to bring forward new ideas and groundbreaking formulas that enhance health and well-being. To view our entire line of products, please visit us online at:

Rapid Sleep PM Extra delivers powerful relief from occasional sleeplessness.

Rapid Sleep PM Extra supplies a blend of soothing botanicals that are traditionally-used in sleep formulas.

FDA Disclaimer Statement

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

General

6954-LAB-ANO38372-V2-10/15

Storage

Store in a cool, dry place.

Is this label outdated? Report a formula or label change and our pharmacy team will review it.

See for yourself

Rapid Sleep PM Extra 6 mg Melatonin by Applied Nutrition label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

Rapid Sleep PM Extra 6 mg Melatonin label

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)
What’s inside

The Ingredients in Rapid Sleep PM Extra 6 mg Melatonin by Applied Nutrition

These are the 4 active ingredients this product is made of. Select any to open its full monograph.

Serving size2 Tablet(s) Dosage formTablet Or Pill Servings per container20 Amounts shown are per serving.

Most supplement products combine several ingredients, and a medication can interact with the product through any one of them. Each ingredient below shows whether it has known drug interactions.

Melatonin

Interacts with
1,461 drugs
6 mg per serving

Melatonin is a hormone your body makes naturally to help control your sleep-wake cycle, and the supplement form is widely used to help with sleep timi...

Melatonin monograph & interactions

Relax and Unwind Blend

800 mg per serving

Other (inactive) ingredients: Microcrystalline Cellulose, Dicalcium Phosphate Anhydrous, Stearic Acid, Silicon Dioxide, Croscarmellose Sodium, Magnesium Stearate, Sodium Carboxymethylcellulose, Dextrose, Soy Lecithin, Sodium Citrate, Dextrin. These complete the product’s ingredient list but are not active constituents.

Interaction report

Rapid Sleep PM Extra 6 mg Melatonin by Applied Nutrition Drug Interactions

Want to check YOUR meds against Rapid Sleep PM Extra 6 mg Melatonin?

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 checker
1,488Drugs
1,478 Moderate 10 Minor

Ingredients driving the most interactions

Melatonin 1,461
Chamomile powder 960
Hops powder 863
Passionflower powder 836

Individual Drug Interactions

The ingredients in Rapid Sleep PM Extra 6 mg Melatonin interact with 1,488 drugs. Click any drug to see the details.

4 of the 4 ingredients in Rapid Sleep PM Extra 6 mg Melatonin interact with drugs. Each result below shows which ingredient is responsible. Melatonin Chamomile powder Hops powder Passionflower powder

Each ingredient & the kinds of drugs it affects

For each ingredient in Rapid Sleep PM Extra 6 mg Melatonin with known interactions, here are the types of medications they can affect. Open any type for the detail — or search your exact drug in the checker above.

Melatonin18 drug types · 1,461 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, melatonin may have anticoagulant effects and may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
There are isolated case reports of minor bleeding and decreased prothrombin activity in people taking melatonin with warfarin (Coumadin). The mechanism, if any, of this interaction is unknown. Taking melatonin orally seems to decrease coagulation activity within one hour of dosing in healthy men.

Likelihood Possible Evidence B
Anticonvulsants

Theoretically, melatonin may reduce the effects of anticonvulsants. Some clinical research suggests that melatonin may increase the frequency of seizures in certain patients, particularly children with neurological impairment.

Likelihood Possible Evidence B
Antidiabetes Drugs

Theoretically, taking melatonin with antidiabetes drugs might increase the risk of hypoglycemia.
Some clinical research shows that melatonin reduces levels of fasting blood glucose and improves glycemic control. However, other research suggests that melatonin might impair glucose utilization and increase insulin resistance, while other research has found no effect on glucose levels. Until more is known, use melatonin cautiously in combination with antidiabetes drugs.

Likelihood Possible Evidence B
Antihypertensive Drugs

Theoretically, taking melatonin with antihypertensive drugs might increase the risk of hypotension or hypertension.
Some clinical research suggests that taking melatonin decreases blood pressure in healthy adults. Also, melatonin seems to lower systolic and diastolic blood pressure in individuals with high blood pressure at nighttime or untreated essential hypertension. However, melatonin seems to worsen blood pressure in patients who are taking antihypertensive medications. Immediate-release melatonin 5 mg at night in combination with nifedipine GITS (Procardia XL) increases systolic blood pressure an average of 6.5 mmHg, diastolic blood pressure by an average of 4.9 mmHg, and heart rate by 3.9 bpm. Also, results from animal research suggest that melatonin reduces the effectiveness of certain antihypertensive drugs, including methoxamine and clonidine.

Likelihood Possible Evidence A
Caffeine

Theoretically, taking caffeine with melatonin might increase levels of melatonin.
Some evidence suggests that caffeine consumption can decrease endogenous melatonin levels, while other evidence suggests that caffeine increases endogenous melatonin levels. When administered in combination with melatonin supplements, caffeine seems to increase melatonin effects and levels. The reason for this discrepancy is not completely clear. Part of the discrepancy may result from the fact that caffeine can inhibit melatonin synthesis as well as inhibit melatonin metabolism. By functioning as an adenosine receptor antagonist, caffeine may indirectly inhibit the synthesis of melatonin. Conversely, because melatonin and caffeine are both metabolized by cytochrome P450 1A2 (CYP1A2) enzyme, concomitant use of melatonin and caffeine may reduce the metabolism of melatonin, resulting in higher serum levels.

Likelihood Probable Evidence B
Cns Depressants

Theoretically, taking melatonin might increase the sedative effects of CNS depressants.
Melatonin has sedative effects. Theoretically, concomitant use of melatonin with alcohol, benzodiazepines, or other sedative drugs might cause additive sedation.

Likelihood Possible Evidence D
Contraceptive Drugs

Theoretically, taking contraceptive drugs with melatonin might increase the effects and adverse effects of melatonin.
Contraceptive drugs can increase the levels of endogenous melatonin. Theoretically, these drugs may increase the effects and adverse effects of oral melatonin.

Likelihood Probable Evidence B
Cytochrome P450 1A2 (Cyp1A2) Substrates

Theoretically, melatonin might increase levels of drugs metabolized by CYP1A2. Also, other CYP1A2 substrates might decrease the metabolism of melatonin, increasing melatonin levels.
Melatonin is metabolized in the liver primarily by the CYP2C19 and CYP1A2 enzymes. Theoretically, combined administration of melatonin with drugs metabolized by the CYP1A2 enzyme might reduce the metabolism of these drugs, resulting in increased serum levels. Conversely, some drugs metabolized by CYP1A2 may inhibit the metabolism of melatonin, resulting in increased serum levels of melatonin. Until more is known, use melatonin cautiously in patients taking drugs metabolized by these enzymes.

Likelihood Probable Evidence D
Cytochrome P450 2C19 (Cyp2C19) Substrates

Theoretically, melatonin might increase levels of drugs metabolized by CYP2C19. Also, other CYP2C19 substrates might decrease the metabolism of melatonin, increasing melatonin levels.
Melatonin is metabolized in the liver primarily by the CYP2C19 and CYP1A2 enzymes. Theoretically, combined administration of melatonin with certain drugs metabolized by the CYP2C19 enzyme may reduce the metabolism of these drugs, resulting in increased serum levels. Conversely, some drugs metabolized by CYP2C19 may inhibit the metabolism of melatonin, resulting in increased serum levels of melatonin. Until more is known, use melatonin cautiously in patients taking drugs metabolized by these enzymes.

Likelihood Probable Evidence D
Fluvoxamine (Luvox)

Theoretically, taking fluvoxamine with melatonin might increase levels of melatonin.
Fluvoxamine can significantly increase melatonin levels. In some cases, fluvoxamine might increase bioavailability of exogenously administered melatonin by up to 20 times. Some researchers think this might be a beneficial interaction and be potentially useful for cases of refractory insomnia. However, this interaction might also cause unwanted excessive drowsiness and possibly other adverse effects. Fluvoxamine is known to increase endogenous melatonin secretion. It seems to increase serum levels of exogenously administered melatonin possibly by decreasing melatonin metabolism by inhibiting cytochrome P450 (CYP450) 1A2 and 2C19 or by inhibiting melatonin elimination. This effect has been found in healthy people taking fluvoxamine 50-75 mg and melatonin 5 mg.

Likelihood Probable Evidence B
Immunosuppressants

Theoretically, melatonin might interfere with immunosuppressive therapy.
Melatonin can stimulate immune function. Theoretically, melatonin might interfere with immunosuppressive therapy.

Likelihood Possible Evidence B
Methamphetamine (Desoxyn)

Theoretically, taking melatonin with methamphetamine may increase the adverse effects of methamphetamine.
Animal research suggests that melatonin exacerbates the adverse effects of methamphetamine, resulting in greater depression of tryptophan hydroxylase (TPH) and tyrosine hydroxylase (TH) activity, as well as a significant reduction in dopamine levels. This has not been shown in humans.

Likelihood Possible Evidence D
Nifedipine Gits (Procardia Xl)

Theoretically, taking melatonin with extended release nifedipine reduces the effects of nifedipine.
Melatonin can decrease the effectiveness of extended release nifedipine (GITS). Immediate-release melatonin 5 mg at night in combination with nifedipine GITS 30-60 mg daily increases systolic and blood pressure by an average of 6.5 mmHg and 4.9 mmHg, respectively. Concomitant use with melatonin also increases heart rate by 3.9 bpm. The mechanism of this interaction is not known.

Likelihood Probable Evidence B
Seizure Threshold Lowering Drugs

Theoretically, taking melatonin with drugs that lower the seizure threshold might increase the risk of seizure activity.
Some clinical evidence suggests that melatonin may increase the frequency of seizures in certain patients, particularly children with neurological disabilities.

Likelihood Possible Evidence D
Warfarin (Coumadin)

Theoretically, melatonin may have antiplatelet effects and may increase the risk of bleeding with warfarin.
Three cases of increased prothrombin time have been reported for patients aged 48-72 years who took melatonin orally in combination with warfarin. However, three cases of decreased prothrombin time have also been reported for patients aged 51-84 years who took melatonin orally in combination with warfarin. Until more is known, use melatonin cautiously in patients taking warfarin.

Likelihood Possible Evidence D
Cytochrome P450 2D6 (Cyp2D6) Substrates

Theoretically, melatonin might increase levels of drugs metabolized by CYP2D6.
Laboratory research suggests that certain lots of melatonin inhibit CYP2D6. Theoretically, combined administration of melatonin with certain drugs metabolized by the CYP2D6 enzyme may reduce the metabolism of these drugs, resulting in increased serum levels. Until more is known, use melatonin cautiously in patients taking drugs metabolized by these enzymes.

Likelihood Possible Evidence D
Cytochrome P450 3A4 (Cyp3A4) Substrates

Theoretically, melatonin might increase levels of drugs metabolized by CYP3A4.
Laboratory research shows that certain lots of melatonin inhibit CYP3A4. Theoretically, combined administration of melatonin with certain drugs metabolized by CYP3A4 may reduce the metabolism of these drugs, resulting in increased serum levels. Until more is known, use melatonin cautiously in patients taking drugs metabolized by these enzymes.

Likelihood Possible Evidence D
Flumazenil (Romazicon)

Theoretically, taking flumazenil with melatonin might reduce the effects of melatonin.
Animal research shows that flumazenil may inhibit the effect of melatonin.

Likelihood Possible Evidence D
Melatonin full monograph & interactions

Chamomile powder9 drug types · 960 drugs

Cns Depressants

Theoretically, German chamomile might have additive effects when used with CNS depressants.
German chamomile has mild sedative effects. Theoretically, concomitant use with drugs with sedative properties can cause additive effects and side effects.

Likelihood Possible Evidence D
Contraceptive Drugs

Theoretically, large amounts of German chamomile might reduce the effectiveness of oral contraceptives.
In vitro, German chamomile has demonstrated antiestrogenic activity. Theoretically, concomitant use of large amounts of German chamomile might interfere with contraceptive drugs through competition for estrogen receptors.

Likelihood Possible Evidence D
Cytochrome P450 2C9 (Cyp2C9) Substrates

Theoretically, German chamomile might inhibit CYP2C9 and increase levels of drugs metabolized by these enzymes.
In vitro evidence shows that German chamomile might inhibit CYP2C9. So far, this interaction has not been reported in humans. However, there might be an increase in the levels of drugs metabolized by CYP2C9 in patients taking German chamomile.

Likelihood Possible Evidence D
Cytochrome P450 2D6 (Cyp2D6) Substrates

Theoretically, German chamomile might inhibit CYP2D6 and increase levels of drugs metabolized by these enzymes.
In vitro evidence shows that German chamomile might inhibit CYP2D6. So far, this interaction has not been reported in humans. However, there might be an increase in the levels of drugs metabolized by CYP2D6 in patients taking German chamomile.

Likelihood Possible Evidence D
Cytochrome P450 3A4 (Cyp3A4) Substrates

Theoretically, German chamomile might inhibit CYP3A4 and increase levels of drugs metabolized by these enzymes.
In vitro evidence shows that German chamomile might inhibit CYP3A4. So far, this interaction has not been reported in humans. However, there might be an increase in the levels of drugs metabolized by CYP3A4 in patients taking German chamomile.

Likelihood Possible Evidence D
Estrogens

Theoretically, large amounts of German chamomile might reduce the effectiveness of estrogens.
In vitro, German chamomile has demonstrated antiestrogenic activity. Theoretically, large amounts of German chamomile might interfere with hormone replacement therapy through competition for estrogen receptors.

Likelihood Possible Evidence D
Tamoxifen (Nolvadex)

Theoretically, large amounts of German chamomile might interfere with the activity of tamoxifen.
In vitro, German chamomile has demonstrated antiestrogenic activity.

Likelihood Possible Evidence D
Warfarin (Coumadin)

German chamomile might increase the effects of warfarin and increase the risk of bleeding.
In one case, a 70-year-old female taking warfarin developed retroperitoneal hematoma and bilateral recti muscle bleeding along with an INR of 7.9 following ingestion of German chamomile tea 4-5 cups daily and use of a topical chamomile-based lotion applied 4-5 times daily.

Likelihood Possible Evidence D
Cytochrome P450 1A2 (Cyp1A2) Substrates

Theoretically, German chamomile might inhibit CYP1A2 and increase levels of drugs metabolized by these enzymes.
In vitro and animal research shows that German chamomile might inhibit CYP1A2. So far, this interaction has not been reported in humans. However, there might be an increase in the levels of drugs metabolized by CYP1A2 in patients taking German chamomile.

Likelihood Possible Evidence D
Chamomile powder full monograph & interactions

Hops powder4 drug types · 863 drugs

Cns Depressants

Theoretically, concomitant use of hops with sedative drugs might cause additive sedation.
Some animal research shows that hops has sedative effects.

Likelihood Possible Evidence D
Estrogens

Theoretically, concomitant use of large amounts of hops might interfere with hormone replacement therapy due to competition for estrogen receptors.
In vitro research suggests that certain hops constituents can competitively bind to estrogen receptors. However, most hops extracts contain very small amounts of these constituents.

Likelihood Possible Evidence D
Cytochrome P450 1A2 (Cyp1A2) Substrates

Hops extract does not seem to affect the metabolism of CYP1A2 substrates.
In vitro research suggests that flavonoid constituents of hops inhibit CYP1A2 enzyme activity. However, a pharmacokinetic study in healthy postmenopausal patients shows that taking a standardized extract of spent hops containing prenylated phenols, as 59.5 mg twice daily for 2 weeks, does not affect levels of caffeine, a CYP1A2 probe substrate.

Likelihood Unlikely Evidence D
Cytochrome P450 3A4 (Cyp3A4) Substrates

Theoretically, hops extract might alter metabolism of CYP3A4 substrates; however, this effect may not be clinically significant.
Animal research suggests that specific constituents of hops, called lupulones, can induce hepatic CYP3A4 enzyme activity. However, a pharmacokinetic study in healthy postmenopausal patients with normal metabolism shows that taking a standardized extract of spent hops containing prenylated phenols, as 59.5 mg twice daily for 2 weeks, decreases the concentration of alprazolam, a CYP3A4 probe substrate, by 7.6%. This reduction is unlikely to be clinically relevant.

Likelihood Possible Evidence D
Hops powder full monograph & interactions

Passionflower powder3 drug types · 836 drugs

Cns Depressants

Concomitant use of passion flower with sedative drugs might cause additive effects and side effects.
Research in animals and humans shows that passion flower has sedative effects which can be additive when used with sedative medications like lorazepam.

Likelihood Possible Evidence D
Cytochrome P450 3A4 (Cyp3A4) Substrates

Theoretically, passion flower might decrease the effects of CYP3A4 substrates.
In vitro research suggests that passion flower can induce CYP3A4 enzymes, albeit to a much lower degree than rifampin, a known CYP3A4 inducer.

Likelihood Possible Evidence D
Organic Anion-Transporting Polypeptide Substrates (Oatp)

Theoretically, passion flower might reduce the bioavailability of OATP2B1 and OATP1A2 substrates.
In vitro research shows that the passion flower constituents apigenin and vitexin inhibit OATP2B1 and OATP1A2. This inhibition may be dose-dependent. One specific high-flavonoid passion flower extract (Valverde) seems to inhibit OATP2B1 and OATP1A2, while another extract with a lower flavonoid concentration (Arkocaps) shows less potent inhibition. OATPs are responsible for the uptake of drugs and other compounds into the body; however, the specific activities of OATP2B1 and OATP1A2 are not well characterized.

Likelihood Possible Evidence D
Passionflower powder full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Rapid Sleep PM Extra 6 mg Melatonin, from the product label.

Applied Nutrition

See all Applied Nutrition products
Name
Applied Nutrition
Street Address
P.O. Box 66457
City
Los Angeles
State
CA
ZipCode
90066
Web Address
www.AppliedNutrition.com
Pharmacist Counseling Corner

Rapid Sleep PM Extra 6 mg Melatonin by Applied Nutrition: Common Questions

Does Rapid Sleep PM Extra 6 mg Melatonin by Applied Nutrition interact with any medications?
Yes. Based on its ingredients, Rapid Sleep PM Extra 6 mg Melatonin has a known interaction with 1,488 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Rapid Sleep PM Extra 6 mg Melatonin contains 4 active ingredients, and an interaction can come from any of them. We check every ingredient, combine the results into one list per medication, and show which ingredient and mechanism is responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
What is melatonin, and how does it help with sleep?
Melatonin is a hormone your body naturally makes to regulate sleep-wake cycles. In this supplement, it's used to help reset your internal clock, especially if your sleep timing is off. It's likely effective for conditions like delayed sleep phase syndrome, where you naturally fall asleep much later than you want.
Can I take this if I'm on blood thinners?
No—not without talking to your doctor or pharmacist first. Melatonin in this product may increase bleeding risk when combined with blood thinners like warfarin. Case reports show it can affect how well these medications work.
Is this product safe for long-term use?
The data shows melatonin is generally well tolerated for short-term use, but long-term safety is less certain. If you're thinking about taking it regularly for weeks or months, check with your pharmacist or doctor about what the research supports.
What are the common side effects?
Most people report dizziness, drowsiness, headache, or nausea. Passionflower and hops may add confusion and sedation. These are usually mild, but if they bother you, stop and talk with your pharmacist.
Can I take this with my diabetes medication?
Talk to your doctor or pharmacist first. Melatonin may change blood sugar levels and could increase the risk of low blood sugar (hypoglycemia) if you're on diabetes drugs. They'll need to know your specific medication.
Is this product safe during pregnancy or breastfeeding?
No. Passionflower and hops should be avoided during pregnancy because there isn't enough safety data. All three main ingredients should be avoided while breastfeeding. Talk with your doctor before using this product if you're pregnant or nursing.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

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Rapid Sleep PM Extra 6 mg Melatonin label
Go deeper

The Full Monographs Behind Rapid Sleep PM Extra 6 mg Melatonin’s Ingredients

Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.

Herb & supplement monograph

Melatonin

Interacts with 1,461 drugs

Melatonin is a hormone your body makes naturally to help control your sleep-wake cycle, and the supplement form is widely used to help with sleep timing problems and jet lag. The evidence is...

Read the full Melatonin monograph → Herb & supplement monograph

Passion Flower

Interacts with 836 drugs

Passion flower is a traditional calming herb that many people use for anxiety and sleep. Early studies hint it may help with mild anxiety and restlessness, but the evidence is limited and mo...

Read the full Passion Flower monograph → Herb & supplement monograph

German Chamomile

Interacts with 960 drugs

German chamomile is a widely used herbal remedy taken mainly as a tea for calming, sleep, and digestive complaints. Early research suggests possible benefits for mild anxiety and some skin o...

Read the full German Chamomile monograph → Herb & supplement monograph

Hops

Interacts with 863 drugs

Hops are most often used for sleep and mild anxiety, frequently combined with valerian, but the human evidence is limited and not very strong. They are generally well tolerated when used sho...

Read the full Hops monograph →
Sources

Sources & How We Checked

Rapid Sleep PM Extra 6 mg Melatonin'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.

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 167 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.

Melatonin 118 references
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See these in context on the Melatonin monograph →

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German Chamomile 15 references
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See these in context on the German Chamomile monograph →

Hops 15 references
  1. Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.
  2. McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
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  10. van Hunsel, F. P. and Kampschoer, P. [Postmenopausal bleeding and dietary supplements: a possible causal relationship with hop- and soy-containing preparations]. Ned.Tijdschr.Geneeskd. 2012;156(41):A5095.
  11. Fenselau, C. and Talalay, P. Is oestrogenic activity present in hops? Food Cosmet.Toxicol. 1973;11(4):597-602. PubMed
  12. Godnic-Cvar, J., Zuskin, E., Mustajbegovic, J., Schachter, E. N., Kanceljak, B., Macan, J., Ilic, Z., and Ebling, Z. Respiratory and immunological findings in brewery workers. Am J Ind Med 1999;35(1):68-75. DOI
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  14. Assessment report on Humulus lupulus L., flos. European Medicines Agency, 2014. Available at: https://www.ema.europa.eu/en/documents/herbal-report/final-assessment-report-humulus-lupulus-l-flos_en.pdf. Accessed September 29, 2021.
  15. van Breemen RB, Chen L, Tonsing-Carter A, et al. Pharmacokinetic Interactions of a Hop Dietary Supplement with Drug Metabolism in Perimenopausal and Postmenopausal Women. J Agric Food Chem. 2020;68(18):5212-5220. PubMed

See these in context on the Hops 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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