Drug & supplement interaction

Heather + Cabotegravir Sodium

Cabotegravir Sodium brand name: Vocabria.

No Known Interaction
Medically reviewed by · Updated June 2026 · Pair last verified Sep 27, 2026
The bottom line No known interaction

We found no known interaction between Heather and Cabotegravir Sodium 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.

Know someone taking this? Share
Facebook Post Reddit Email
On this page
Interaction report

Heather and Cabotegravir Sodium

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 Cabotegravir Sodium and Heather 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.

Worth understanding: our licensed dataset holds no drug-interaction record for Heather at all — not against Cabotegravir Sodium, 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.

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.

Heather safety at a glance

Heather overall Use caution Generally regarded as mild but human safety and effectiveness data are very limited.
Pregnancy Avoid Not enough safety information, so it is best avoided during pregnancy.
Breastfeeding Avoid No reliable safety data during breastfeeding, so avoid it.

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

Still wondering about combining Cabotegravir Sodium and Heather? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

What Cabotegravir Sodium’s Own FDA Label Lists

This is not an interaction — none of it involves Heather. These are the most notable effects listed in the ADVERSE REACTIONS section of Cabotegravir Sodium’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. 3 of them are worth acting on rather than waiting out — marked below.

  • Liver problems Worth acting on mentioned in 4.0% of FDA reports for Cabotegravir Sodium
  • A higher chance of infection Worth acting on
  • An allergic reaction Worth acting on
  • Bloating or gas
  • Back pain
  • Drowsiness
  • Reduced appetite
  • Muscle pain
  • Fever
  • Tiredness mentioned in 3.6% of FDA reports for Cabotegravir Sodium

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 Cabotegravir Sodium. Read the label on DailyMed › Where a percentage is shown, it is the share of 1,558 voluntary FDA FAERS reports for Cabotegravir Sodium that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Heather’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Heather side to compare — that is a limit of the record, not a statement that Heather has no side effects.

Everything else you take

See Every Supplement That Interacts With Cabotegravir Sodium

This page covers Heather only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Cabotegravir Sodium page lists 29 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Breadfruit (moderate), Brussels Sprout (moderate), Cabbage (moderate) and Calcium D-glucarate (moderate).

By severity: 1 major · 18 moderate · 10 minor.

From our pharmacist’s overview on the Cabotegravir Sodium page

“Cabotegravir (Vocabria) is an HIV medicine, and keeping its blood level steady is what keeps the virus suppressed, so I read this list of 29 interacting supplements with genuine concern. The one major entry is activated charcoal, a popular detox remedy that soaks up drugs in the gut and cuts how much reaches you.”

Reviewed by 2 · Jul 18, 2026

Open the Cabotegravir Sodium interaction page

One more smart check

Taking Heather as Part of a Dietary Supplement Product? Check It for Interactions

We hold 40 real supplement products containing Heather, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Heather. Even though Heather itself has no known interaction with Cabotegravir Sodium, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:

How much people look this up

Where Heather and Cabotegravir Sodium 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 Heather
Steady interest

#1,051 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Cabotegravir Sodium
Steady interest

#1,733 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. Heather 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 Heather reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 27, 2026. The Heather and Cabotegravir Sodium 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 Heather

What is Heather?

  • Urinary tract complaints
  • Mild fluid retention
  • Joint and rheumatic discomfort
  • Sleep and relaxation
  • Skin and wound care (topical)

Heather (Calluna vulgaris) is a traditional European herb used mainly as a tea for urinary and minor inflammatory complaints, but high-quality human studies are lacking. It is generally considered gentle when used as a tea, though its effectiveness is largely unproven, so check with a pharmacist or doctor before relying on it.

Calluna vulgaris · Ericaceae · Flowering tops and aerial parts · Tea (dried flowers), tincture, liquid extract, capsules

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

Heather: dosing

There is no established standardized dose for heather. Traditional use is mostly as a tea made from the dried flowering tops, but exact amounts vary widely between products and sources.The safest approach is to follow the directions on the product label and not exceed them.

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

Read the full Heather monograph & all interactions
Medication

About Cabotegravir

What Is Cabotegravir Used For?

Brand name: Vocabria

Vocabria (cabotegravir) tablets are used in combination with rilpivirine (Edurant) to treat HIV-1 infection in adults and adolescents aged 12 and older who weigh at least 35 kg and whose HIV is already virologically suppressed (virus levels undetectable or very low on their current regimen). Vocabria tablets serve as a short-term oral lead-in — taken for roughly one month — before switching to long-acting injectable therapy.

Cabotegravir tablets are also used as an oral lead-in for HIV-1 pre-exposure prophylaxis (PrEP) — helping HIV-negative adults and adolescents (weighing at least 35 kg) confirm they tolerate the drug before starting injectable PrEP. Both uses require confirmed HIV-negative status before starting.

Most-Reported Side Effects for Cabotegravir Sodium

From FAERS, the FDA’s public side-effect reporting system (1,558 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Viral load increased 109 reports
Injection site pain 105 reports
Virologic failure 64 reports
Hepatitis b 63 reports
Pathogen resistance 61 reports
See full Cabotegravir drug information
Keep checking

Other Drugs & Heather

Browse every other medication we’ve checked against Heather — 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 Heather 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 Heather list.

See the full Heather interactions page
See every supplement checked against Cabotegravir Sodium, ranked by severity
Evidence & sources

Heather References

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

  1. Herbs and Supplements — MedlinePlus Source
  2. Using Dietary Supplements Wisely — NIH NCCIH 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

Taking Heather and Cabotegravir Sodium Together: Common Questions

Is it safe to take Heather with Cabotegravir Sodium?
We do not list a known interaction between Heather and Cabotegravir Sodium. 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 Cabotegravir Sodium interact with any supplements?
Yes. Cabotegravir Sodium has documented interactions with 29 supplements in our database — Heather is not one of them. The Cabotegravir Sodium 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

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

Our pharmacists answer your medication & supplement questions — free.

Ask a pharmacist

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.