How ExciIQ helps
ExciIQ makes the inactive ingredients in FDA-labeled medications visible, comparable, and searchable. Here is how physicians, nurse practitioners (NPs), physician assistants (PAs), pharmacists, and registered dietitians can put it to work. Each path ends in a documented workup.
For the physician, NP, or PA
When the actives don’t explain the reaction, work the excipient hypothesis with the real products in hand.
Friend or Foe
Friends
Tolerated
- Example A 20 mg
- Example B 5 mg
Foes
Reaction
- Example C 10 mg
- Example D 50 mg
Suspect excipients 2
- FD&C Yellow No. 6 Top suspect
- Povidone
What you do in ExciIQ
- Medication: pull each product by name, NDC, or pill imprint.
- Friend or Foe: sort what was tolerated from what drew a reaction.
- Excipients: see which products contain a suspect excipient.
- Excipient-Safe Alternatives: find equivalents that avoid it, per the current FDA label.
Clinicians know this chart. It says “multiple drug allergies.” The patient says the reactions never quite made sense: different drugs, different classes, the same rash.
When the actives don’t explain the pattern, the excipients might. The same dye, binder, or preservative can thread through unrelated products. A manufacturer switch the patient never knew about can add or remove it.
The question reaches allergy and immunology, psychiatry, primary care, and any practice with long-term regimens.
The refill came from a different manufacturer, and the patient says it doesn’t sit right. Compare the products in question by manufacturer and by strength.
Pull each product the patient received by name, NDC, or pill imprint. See its inactive ingredients as labeled, specific to manufacturer and strength.
Sort what was tolerated from what drew a reaction. ExciIQ turns that sort into a list of suspect excipients. That is a shortlist to carry into your workup, not a verdict.
Then look up any excipient to see which products contain it. Find equivalents that avoid it, per the current FDA label. Review the list in your own workup, or send it to the prescribing team and the pharmacy.
Every record carries provenance. When a label disagrees with itself, you see it.
For the pharmacist
Same drug, same strength, different manufacturer: the inactive ingredients can change. ExciIQ shows the inactive ingredients of the exact product in hand.
Medication
Example tablet 25 mg 1 difference
Coded list vs. label text
Coded ingredient list
- Lactose monohydrate
- Magnesium stearate
- Microcrystalline cellulose
From label text
- FD&C Red No. 40 (differs between coded list and label text)
- Lactose monohydrate
- Magnesium stearate
- Microcrystalline cellulose
label text mentions "FD&C Red No. 40" — not present in coded list
What you do in ExciIQ
- Medication: search by name or NDC, or identify a pill by its imprint.
- Friend or Foe: turn a medication history into a list of suspect excipients.
- Dose Cup (the regimen workspace): see how many times a day the patient takes each excipient, across every medication.
- Excipient-Safe Alternatives: check equivalents against the excipients you select.
Compounding pharmacy
You’re often the last stop. The patient who reacts to every commercial version of a drug lands at your counter. The referral note says “sensitive to fillers, please compound.” Which fillers? Nobody upstream could say.
Sort the patient’s medication history into tolerated Friends and reaction-associated Foes. ExciIQ turns that sort into a list of suspect excipients and flags the Top Suspects among them.
Check each suspect against the full regimen, not one label at a time. Dose Cup counts how many times a day the patient takes each excipient, across every medication. It shows daily and weekly totals.
ExciIQ checks commercial equivalents against the excipients you choose to avoid. Each one gets one of three honest verdicts: avoids the selected excipients per the current FDA label, contains one, or can’t confirm. When ExciIQ can’t confirm, it says so.
You compound from the label record instead of a hunch. You document the ingredients you excluded, and why.
Retail and community pharmacy
The refill matches in the system: same drug, same strength. But your wholesaler switched manufacturers. Three weeks later the patient is back describing a rash.
The active ingredient is unchanged. The inactive ingredients are a different story, and until now an invisible one.
Compare the products in question by manufacturer and by strength. The same drug’s excipients can differ across both. Search by name or NDC, or identify the pill in the vial by its imprint.
For patients managing celiac disease, lactose intolerance, or dye sensitivities, look up an excipient once. See which products contain it and which equivalents avoid it, per the current FDA label.
Hospital pharmacy
The formulary didn’t change. The supplier did. Shortages and contract switches swap one manufacturer’s product for another’s, and the inactive ingredients swap with them.
For most patients it never matters. For a patient with a documented sensitivity to lactose, a dye, or a preservative, “same drug, same strength” isn’t the whole answer.
Compare products at exact manufacturer and strength. Confirm what the newly stocked NDC actually carries. Need a substitution that avoids a specific excipient? Check each candidate against it, per the current FDA label.
ExciIQ holds no patient-identifying data by architecture, so adding it doesn’t add a patient-data footprint.
Pharmacy owner
The excipient detective work already happens in your pharmacy. It lives in individual pharmacists’ heads and walks out the door with turnover.
ExciIQ gives the whole team one consistent way to run an excipient workup. Whoever is on shift gets the same verdicts, the same provenance, and the same documented rationale. Saved workups survive staff handoffs and the patient’s next visit.
Because ExciIQ holds no patient-identifying data by architecture, it adds capability without adding a data liability.
For the registered dietitian
Check a patient’s medicines against the diet restriction, with the same label evidence the pharmacist sees.
Dose Cup · Excipient Comparison
| Excipient | Example A10 mg · Tablet | Example B25 mg · Capsule | Example C5 mg · Tablet |
|---|---|---|---|
| Lactose monohydrate (total daily intake across this cup: 3×/day) | Listed | Not listed | Listed |
| Magnesium stearate (total daily intake across this cup: 4×/day) | Listed | Listed | Listed |
| FD&C Yellow No. 6 (total daily intake across this cup: 1×/day) | Not listed | Listed | Not listed |
listed · not listed · The badge on each excipient is its total daily intake across the cup.
What you do in ExciIQ
- Medication: find each product by name, NDC, or pill imprint.
- Dose Cup: see every medicine’s inactive ingredients side by side.
- Excipients: start from the excipient the diet rules out and see which products contain it.
- Excipient-Safe Alternatives: see which equivalents avoid it, per the current FDA label.
The diet plan rules out lactose, gluten, or a dye. The patient follows it carefully. The medication list was never checked against it.
Each medicine’s FDA label lists its inactive ingredients. Finding them product by product is label archaeology.
Find each medicine by name, NDC, or pill imprint, and add it to Dose Cup. See every product’s inactive ingredients side by side, specific to manufacturer and strength.
Or start from the excipient the diet rules out. Look it up to see which products contain it. Then see which equivalents avoid it, per the current FDA label.
For gluten, ExciIQ marks ingredients made from wheat. When a label lists a starch without saying what it’s made from, ExciIQ shows it just as the label names it. A missing flag is never presented as an all-clear. How ExciIQ handles gluten
You leave with a list and the label record behind it. Bring it to the prescriber or pharmacist. The prescriber decides on any change to the medicines.
Veterinary
The patient who can’t tell you it’s the excipient.
Excipients
Excipient
Xylitol
Found in medications
- Example chewable tablet 5 mgLabeler A
- Example orally disintegrating tablet 10 mgLabeler B
- Example oral solution 1 mg/mLLabeler C
What you do in ExciIQ
- Excipients: see which products carry an excipient.
- Medication: check a human-labeled product’s inactive list.
- Excipient-Safe Alternatives: find products that avoid what the animal can’t have, per the current FDA label.
Animals metabolize differently. The excipient that’s harmless in your hand can be the problem in the exam room. Xylitol, a common sweetener in human tablets, is toxic to dogs.
Veterinary practice lives with this every day. Human-labeled products are dispensed under extra-label use. Species sensitivities appear that the label never anticipated. Compounding requests are built around what an animal can’t tolerate.
ExciIQ covers FDA’s human labeling today, prescription and OTC, at product-and-strength precision. That is the label set extra-label dispensing draws on. We plan to load FDA’s animal labeling in Q4 2026.
Look up any excipient and see which products carry it. Check a human-labeled product’s inactive list before it goes anywhere near a patient with four legs. Find products that avoid what the species, or the individual animal, can’t have, per the current FDA label.
The veterinary side of the counter gets the same verdicts: avoids the selected excipients per the current FDA label, contains one, or can’t confirm.
The surfaces, in one line each
- Medication
- Drug search, pill identification by imprint, color, and shape, and a structured FDA label viewer.
- Excipients
- Reference cards with identifiers, functions, and cautions.
- Friend or Foe
- Saveable workups, with the Top Suspects flagged.
- Excipient-Safe Alternatives
- Equivalents checked against the excipients you select.
- Dose Cup
- A privacy-preserving regimen workspace with a regimen-wide comparison matrix.
Bring the case that’s been bothering you. We’re onboarding a small founding cohort of physicians, nurse practitioners, physician assistants, pharmacists, and registered dietitians. Allergists, immunologists, and physicians in any specialty caring for patients with sensitivities are welcome. So are pharmacists in compounding, community, and hospital practice.