Drug & supplement interaction

Phenpromethamine + tipranavir

tipranavir brand name: Aptivus.

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 Phenpromethamine and tipranavir 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. Additionally, although there is no interaction, the label for tipranavir states a food rule worth keeping to.

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Interaction report

Phenpromethamine and tipranavir

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 tipranavir and Phenpromethamine in our sources. This does not guarantee that the combination is completely free of risk — there is often limited research on supplements and herbal products, especially around drug interactions.

If you decide to take both, the practical routine is simple: add one new thing at a time and note the date you started it. If the combination is going to disagree with you, it usually shows in the first days to a couple of weeks — and a start date turns “I’ve been feeling off” into something a pharmacist can actually work with. 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.

Phenpromethamine safety at a glance

Phenpromethamine overall Avoid This is an unapproved synthetic stimulant that should not be used as a supplement.
Pregnancy Possibly Unsafe When used orally. Certain stimulants, especially when used in combination with other stimulants or intensive exercise, have been associated with cardiovascular... Read the full pregnancy detail
Breastfeeding Possibly Unsafe When used orally. Certain stimulants, especially when used in combination with other stimulants or intensive exercise, have been associated with cardiovascular... Read the full breastfeeding detail

Pregnancy & breastfeeding ratings are from Natural Medicines (Therapeutic Research Center) — the full detail is in the Special populations card below. Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Still wondering about combining tipranavir and Phenpromethamine? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
How we checked

Why No Interaction Is Listed for tipranavir

Interactions in our licensed database are recorded against drug classes, not just single drug names. tipranavir is filed under 11 classifications — including protease inhibitors (pis), cytochrome p450 2c19 (cyp2c19) substrates, cytochrome p450 3a4 (cyp3a4) inducers. Phenpromethamine has documented interactions with 1 drug class — the most serious being stimulant drugs (moderate) — and none of tipranavir’s classifications are among them.

Classification data comes from our licensed Natural Medicines dataset. A medication can belong to classes beyond those recorded there, so this describes how the check was run — it is not a safety guarantee.

Keep it in perspective

Phenpromethamine Does Interact With Other Medications

Phenpromethamine has 172 moderate known drug interactions in our database — tipranavir isn’t one of them. If you take anything else, check it against the full list below.

Moderate 172 No known interaction 2,658 (incl. tipranavir)
Taking anything else?

Check Another of Your Medications Against Phenpromethamine

Covers the 2,830 medications we’ve checked against Phenpromethamine. Pick one to open its full report.

What to actually watch for

What tipranavir’s Own FDA Label Lists

This is not an interaction — none of it involves Phenpromethamine. These are the most notable effects listed in the ADVERSE REACTIONS section of tipranavir’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 take both. 5 of them are worth acting on rather than waiting out — marked below.

  • Dehydration Worth acting on
  • Anemia Worth acting on
  • Shortness of breath Worth acting on
  • A low white blood cell count Worth acting on
  • Bleeding or bruising Worth acting on
  • Weight loss
  • Vomiting mentioned in 19.9% of FDA reports for tipranavir
  • Nausea mentioned in 20.5% of FDA reports for tipranavir
  • Numbness or tingling
  • Muscle pain

Showing the 10 most notable of 17 label-listed effects — ranked by how unusual each one is across medicines generally, with serious effects weighted up.

From the ADVERSE REACTIONS section of the FDA label for tipranavir. Read the label on DailyMed › Where a percentage is shown, it is the share of 1,379 voluntary FDA FAERS reports for tipranavir that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Phenpromethamine’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Phenpromethamine side to compare — that is a limit of the record, not a statement that Phenpromethamine has no side effects.

Special populations

Phenpromethamine in Pregnancy & Breastfeeding

Pregnancy And Lactation Possibly Unsafe

When used orally. Certain stimulants, especially when used in combination with other stimulants or intensive exercise, have been associated with cardiovascular events such as stroke and cardiac arrest. Avoid using.

DISCLAIMER: This tool is intended for informational purposes only, and should not be interpreted as specific medical advice. Patients should consult with a qualified healthcare provider before making decisions about therapies and/or health conditions.© 2026 Therapeutic Research Center

How to take them

Some tipranavir Products Have a Food Rule — Phenpromethamine Should Not Break It

At least one FDA label for a product containing tipranavir says to take it with food. If you take Phenpromethamine on an empty stomach out of habit, keep them separate — and take tipranavir with a meal where the label says to.

This may not be true of your version. Food instructions belong to the product, not the ingredient: two tipranavir products can carry different directions, and extended-release forms often differ from immediate-release ones. The label we read is quoted below — check the directions on your own box or bottle, or ask your pharmacist, for how to take the exact product you were given.

( 2.2 ) APTIVUS taken with ritonavir tablets must be taken with meals ( 2.1 ) APTIVUS capsules must be swallowed whole and must not be opened or chewed ( 2.1 ) Children should be assessed for their ability to swallow capsules before prescribing APTIVUS capsules.

From the Dosage and Administration section of the FDA label we read for tipranavir — where that label names a specific product, the instruction is that product's. Read the label on DailyMed ›

A food rule is not an interaction — it is about how much of the medicine you absorb. The directions that came with your own product, and your pharmacist, outrank anything on this page.

Everything else you take

See Every Supplement That Interacts With tipranavir

This page covers Phenpromethamine only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the tipranavir page lists 212 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Grapefruit (major), St. John's Wort (major), 1,3-dmaa (moderate) and Acacia Rigidula (moderate).

By severity: 3 major · 165 moderate · 44 minor.

From our pharmacist’s overview on the tipranavir page

“Keeping tipranavir (Aptivus) at a steady blood level is what keeps HIV suppressed, so this is a supplement list that deserves genuine care, and the three major-rated entries come first. St.”

Reviewed by 2 · Jul 18, 2026

Open the tipranavir interaction page

How much people look this up

Where Phenpromethamine and tipranavir 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 Phenpromethamine
Steady interest

#1,097 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication tipranavir
Steady interest

#1,680 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.
  • Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Phenpromethamine reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Phenpromethamine and tipranavir records this page draws on were last updated June 22, 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 .
Supplement

About Phenpromethamine

What is Phenpromethamine?

  • Nasal decongestion (historical)
  • Stimulant effects (misuse)
  • Pre-workout 'energy' (illegally added to some products)

Phenpromethamine is a synthetic stimulant drug, not a herb or legitimate dietary supplement. It has been found illegally added to some sports and weight-loss supplements, and it is not approved for use in the United States. You should avoid any product that lists it as an ingredient and talk to a pharmacist or doctor.

Not applicable; phenpromethamine is a synthetic chemical, not a plant part · Historically found as a nasal inhaler; not a legitimate dietary supplement ingredient

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

Phenpromethamine: dosing

There is no established or recommended dose of phenpromethamine for supplement use. It is not an approved supplement ingredient, and any amount found in products is unregulated and potentially unsafe.Because the amount in spiked products is unknown and uncontrolled, no dose can be considered safe. The best advice is to avoid products that contain it entirely.

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

Read the full Phenpromethamine monograph & all interactions
Medication

About Tipranavir

What Is Tipranavir Used For?

Brand name: Aptivus

Aptivus (tipranavir) is used to treat HIV-1 infection in adults and in pediatric patients weighing 36 kg or more who have already tried other HIV medications and whose virus has become resistant to more than one protease inhibitor. It must always be taken together with ritonavir to work properly.

Aptivus is not recommended for people who have never been treated for HIV before. It works best when combined with other active HIV medications, and a resistance test is usually done first to confirm the virus will respond to it.

See full Tipranavir drug information
Keep checking

Other Drugs & Phenpromethamine

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

0Major
172Moderate
0Minor
2,657No known interaction
172 Moderate 2,657 No interaction
Moderate

172 interactions

Showing 60 of 172 moderate interactions — see all 172 on the Phenpromethamine page.

No interaction 2,657 drugs checked — show the list

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

Showing the 60 most looked-up of 2,657 medications checked with no known interaction — see the full Phenpromethamine list.

See the full Phenpromethamine interactions page
See every supplement checked against tipranavir, ranked by severity
Evidence & sources

Phenpromethamine References

The 2 references that drive our Phenpromethamine monograph and interaction data, from the evidence-graded Natural Medicines (TRC Healthcare) database. Citations with a link open the study on PubMed or the publisher’s site.

  1. Venhuis B, Keizers P, van Riel A, de Kaste D. A cocktail of synthetic stimulants found in a dietary supplement associated with serious adverse events. Drug Test Anal. 2014 Jun;6(6):578-81. doi: 10.1002/dta.1664. Epub 2014 May 6. PubMed
  2. Cohen PA, Travis JC, Vanhee C, Ohana D, Venhuis BJ. Nine prohibited stimulants found in sports and weight loss supplements: deterenol, phenpromethamine (Vonedrine), oxilofrine, octodrine, beta-methylphenylethylamine (BMPEA), 1,3-dimethylamylamine (1,3-DMA

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

Taking Phenpromethamine and tipranavir Together: Common Questions

Is it safe to take Phenpromethamine with tipranavir?
We do not list a known interaction between Phenpromethamine and tipranavir. 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.
Should I take Phenpromethamine and tipranavir at the same time of day?
At least one FDA label for a product containing tipranavir says to take it with food. If you take Phenpromethamine on an empty stomach out of habit, keep them separate and take tipranavir with a meal where the label says to. Food instructions belong to the product rather than the ingredient — two tipranavir products can differ — so check the directions on your own box. This is about absorption, not an interaction.
How was the Phenpromethamine and tipranavir combination checked?
Interactions in our licensed database are recorded against drug classes. tipranavir is filed under 11 classifications, and Phenpromethamine has documented interactions with 1 drug class — none of tipranavir's classifications are among them. A medication can belong to classes beyond those recorded in our dataset, so this describes how the check was run rather than guaranteeing safety.
Does Phenpromethamine interact with any other medications?
Yes. Phenpromethamine has 172 documented drug interactions in our database — tipranavir is simply not one of them. If you take anything else, it is worth checking each one; they are all listed on this page.
Does tipranavir interact with any supplements?
Yes. tipranavir has documented interactions with 212 supplements in our database — Phenpromethamine is not one of them. The tipranavir 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

Phenpromethamine monograph Uses, safety profile, and every drug interaction in one place Tipranavir drug information The full plain-English guide to this medication tipranavir supplement interactions Every supplement checked against tipranavir, 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 tipranavir and Phenpromethamine?

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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.