Drug & supplement interaction

Abs Diet + Tasimelteon

Tasimelteon brand names: Hetlioz, Hetlioz Lq.

No Known Interaction
Medically reviewed by · Updated June 2026 · Pair last verified Sep 20, 2026
The bottom line No known interaction

We found no known interaction between Abs Diet and Tasimelteon in our sources. Absence of a documented interaction is not the same as proven safety, and does not guarantee one does not exist. Do not start, stop, or change a medication or supplement based on this page; confirm with your pharmacist or doctor first.

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Interaction report

Abs Diet and Tasimelteon

We checked these two against our interaction database. Here is what we found.

No Known Interaction Found

We did not find a documented interaction between Tasimelteon and Abs Diet in our sources. This does not guarantee that the combination is completely free of risk — research on Abs Diet alongside specific medications may be limited.

Worth understanding: our licensed dataset holds no drug-interaction record for Abs Diet at all — not against Tasimelteon, and not against any other medication we track. This verdict therefore rests on the absence of any recorded data, not on research that looked at this combination and found nothing. We cannot rule an interaction out.

Abs Diet is an eating pattern rather than something you take. Ask your pharmacist or doctor before changing how you eat while on a prescribed medicine: some medicines are dosed around meals, and a change in diet can change how they work. Do not stop a prescribed medicine on your own.

Always talk with your pharmacist or doctor before making changes to your medications or supplements, particularly if you take several medications or have an ongoing health condition.

Abs Diet safety at a glance

Abs Diet overall Use caution It is an eating and exercise plan; general principles are reasonable but individual needs vary, so get personalized advice.
Pregnancy Use caution Pregnancy is not the time to follow a weight-loss diet; talk with your doctor about nutrition needs.
Breastfeeding Use caution Nursing increases calorie and nutrient needs, so check with a healthcare provider before dieting.

Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Still wondering about combining Tasimelteon and Abs Diet? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

What Tasimelteon’s Own FDA Label Lists

This is not an interaction — none of it involves Abs Diet. These are the most notable effects listed in the ADVERSE REACTIONS section of Tasimelteon’s own FDA label, for the medication by itself. Knowing the drug’s own list makes it easier to work out the likely cause if something new turns up while you follow Abs Diet and take the medicine. 2 of them are worth acting on rather than waiting out — marked below.

  • Liver problems Worth acting on
  • A higher chance of infection Worth acting on
  • Vivid dreams or nightmares mentioned in 8.5% of FDA reports for Tasimelteon
  • Trouble sleeping mentioned in 19.8% of FDA reports for Tasimelteon
  • Headache mentioned in 6.7% of FDA reports for Tasimelteon

From the ADVERSE REACTIONS section of the FDA label for Tasimelteon. Read the label on DailyMed › Where a percentage is shown, it is the share of 5,765 voluntary FDA FAERS reports for Tasimelteon that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Abs Diet’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Abs Diet side to compare — that is a limit of the record, not a statement that Abs Diet has no side effects.

Everything else you take

See Every Supplement That Interacts With Tasimelteon

This page covers Abs Diet only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Tasimelteon page lists 218 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: 1,4-butanediol (major), Activated Charcoal (major), Beer (major), Gamma-hydroxybutyrate (ghb) (major) and Grapefruit (major).

By severity: 9 major · 166 moderate · 43 minor.

From our pharmacist’s overview on the Tasimelteon page

“Tasimelteon (Hetlioz) resets the body clock in people with non-24-hour sleep-wake disorder, and the sleep aids they often reach for, melatonin and kava among them, sit on an interaction list that deserves real respect. Nine of the 218 ingredients on file rate major, mostly in two directions: sedatives like kava stack drowsiness onto a…”

Reviewed by 2 · Jul 18, 2026

Open the Tasimelteon interaction page

How much people look this up

Where Abs Diet and Tasimelteon Sit Against Everything Else

Out of every supplement and medication people look up on HelloPharmacist, here is where these two land this week — and which way each has been moving.

Supplement Abs Diet
Steady interest

#1,112 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Tasimelteon
Steady interest

#1,943 of 2,830 medications looked up here in the last 7 days

29 days ago today

Position among everything looked up on this site, not a measure of how commonly either one is used or how important it is. A supplement can climb this list because of a news story. It counts every request to the page, automated ones included, and nothing here identifies anyone.

Where does our data come from?
  • Source: the Natural Medicines (TRC Healthcare) clinical database — the evidence-graded professional reference for herb & supplement interactions. Abs Diet is not yet covered by that licensed database, so its write-up cites publicly available medical sources directly (see the references below).
  • Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Abs Diet reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Abs Diet and Tasimelteon records this page draws on were last updated June 20, 2026.
  • What “no known interaction” means: no documented interaction in the sources above — not a guarantee of safety. Supplements are studied far less than prescription drugs, so we say exactly what the evidence supports, and nothing more.
Data structure & sourcing designed and verified by .
Eating pattern

About Abs Diet

What is Abs Diet?

  • Weight loss
  • Belly fat reduction
  • Building lean muscle
  • General fitness and nutrition
  • Heart health support

The Abs Diet is a diet and exercise program created by a magazine editor, not a dietary supplement, herb, or pill. It promotes whole foods, regular exercise, and a balanced eating pattern, which can support weight loss for some people, but it is a lifestyle plan rather than a product you take. Talk with a doctor, pharmacist, or dietitian before starting any new diet program.

Diet program and book; meal plans and recipes

An interaction check asks whether these two react with each other — it does not ask whether Abs Diet is a good idea for someone in your situation. Here is what our Abs Diet record says about it on its own.

Abs Diet: dosing

There is no "dose" for the Abs Diet because it is a meal-and-exercise plan, not a supplement. The program is described in its books, which lay out food choices, meal timing, sample menus, and workout routines.If you want to follow it, use the official book or program materials and adjust portions to your own calorie and nutrient needs. A registered dietitian or your pharmacist can help you tailor the plan and make sure it is safe alongside any medical conditions or medicines.

From our Abs Diet monograph — the full record covers uses, side effects and every documented interaction.

Read the full Abs Diet monograph & all interactions
Medication

About Tasimelteon

What Is Tasimelteon Used For?

Brand names: Hetlioz, Hetlioz Lq

Tasimelteon capsules are approved to treat Non-24-Hour Sleep-Wake Disorder (Non-24) in adults. Non-24 is a condition where the body's internal clock does not align with the normal 24-hour day, causing sleep and wake times to shift continuously.

Hetlioz capsules are also approved to treat nighttime sleep disturbances in Smith-Magenis Syndrome (SMS) in patients 16 years of age and older. Hetlioz LQ oral suspension is approved specifically for nighttime sleep disturbances in SMS in pediatric patients ages 3 to 15 years.

Most-Reported Side Effects for Tasimelteon

From FAERS, the FDA’s public side-effect reporting system (5,770 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Insomnia 728 reports
Middle insomnia 414 reports
Somnolence 408 reports
Headache 386 reports
Nightmare 268 reports
See full Tasimelteon drug information
Keep checking

Other Drugs & Abs Diet

Browse every other medication we’ve checked against Abs Diet — both the ones with a known interaction and the ones without. Select any drug for the full detail.

0Major
0Moderate
0Minor
2,829No known interaction
2,829 No interaction
No interaction 2,829 drugs checked — show the list

We also checked Abs Diet against these medications and found no known interaction in our sources. Open any page to confirm.

Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Abs Diet list.

See the full Abs Diet interactions page
See every supplement checked against Tasimelteon, ranked by severity
Evidence & sources

Abs Diet References

The 2 sources that drive our Abs Diet monograph — publicly available pages from reputable medical and government organizations. Every link was verified to work before publishing. Abs Diet is not covered by the licensed Natural Medicines interaction database, so its page cites these public sources directly.

  1. Choosing a Safe and Successful Weight-Loss Program — NIDDK (NIH) Source
  2. Losing Weight — MedlinePlus (NIH) Source

Medication overviews come from MedlinePlus (NIH); supplement label data from the NIH Dietary Supplement Label Database. Content is written and reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.

Pharmacist Counseling Corner

Following Abs Diet While Taking Tasimelteon: Common Questions

Is it safe to follow Abs Diet while taking Tasimelteon?
We do not list a known interaction between Abs Diet and Tasimelteon. That does not guarantee the combination is risk-free, so confirm with your pharmacist or doctor — especially if you take other medications or have a health condition.
Does Tasimelteon interact with any supplements?
Yes. Tasimelteon has documented interactions with 218 supplements in our database — Abs Diet is not one of them. The Tasimelteon interaction page linked on this page lists every one, ranked by severity.

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

Where next

Keep Exploring

Abs Diet monograph Uses, safety profile, and every drug interaction in one place Tasimelteon drug information The full plain-English guide to this medication Tasimelteon supplement interactions Every supplement checked against Tasimelteon, ranked by severity Supplement interaction checker Check any supplement or product against your medications Browse medications A–Z Every drug we’ve checked against herbs & supplements References The 2 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Tasimelteon and Abs Diet?

Our pharmacists answer your medication & supplement questions — free.

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This information is for education only and is not a substitute for professional medical advice. Always check with your pharmacist or doctor before starting, stopping, or combining supplements and medications.