Andrographis (AP Extract).
Supports your immune defences through the months when bugs go round. It's a bitter herb standardised for andrographolide, and that declared number is what carries the activity.
Reviewed March 2026
- Category
- Herb
What Andrographis (AP Extract) is, and what it does.
- Does it work
- Suits people who feel run down through winter or pick up whatever is going round the office or the classroom. Read the andrographolide percentage, not only the milligram weight.
- How much to take
- Start with 200mg a day of a standardised extract. 200 to 600mg daily is the band where this extract earns its keep; the higher trial figure was a research condition.
- Time to feel it
- A short course is usually judged over three to five days. Used daily through a season it works quietly in the background rather than as something that switches on.
- The first dose
- Day one is mostly the taste, which is sharply bitter. Nothing has accumulated yet, and a short course is read over the following few days rather than the first one.
- With regular use
- Most people run it in short courses rather than continuously. Across a season of repeat courses, what shifts is how a seasonal challenge runs, not how you feel day to day.
- How well tolerated
- Well tolerated in short courses, with bitterness and mild stomach upset the usual complaints. Check with a clinician if you're pregnant, on blood thinners, or on immune-modulating medicine.
- How it feels
- Not much drama. The taste is sharply bitter, and the effect shows up as an easier week rather than a sensation you can point to.
- The overlooked benefit
- Two capsules of the same milligram weight can differ several-fold in andrographolide, so the declared percentage on the label tells you more than the milligrams do.
200 to 600mg a day is where Andrographis (AP Extract) works.
Source: Same as andrographis; AP extract specific
The proof, claim by claim.
These words describe the research, not the molecule's worth. Research strength is how much work stands behind one claim, and it is never a product score.
Andrographis (AP Extract) has emerging evidence. Based on 5102+ studies.
- Immune resilience through the colder monthsMeta-analysis
- Throat and upper airway comfort during a seasonal challengeRandomised trial
- A healthy inflammatory responseIn vitro study
- Joint comfortRandomised trial
- Everyday liver supportAnimal study
Questions people ask about Andrographis (AP Extract).
- When should I take it?
- Timing matters less than consistency. Pick a time that works for you and take it daily.
- Can I take it with other supplements?
- Usually fine. The main thing to watch is not doubling up on the same ingredient from different products. If you're on prescription meds, check with your pharmacist first.
- Any side effects to watch for?
- Most people tolerate it well at recommended doses. GI upset is the most common complaint with any supplement. Start with a lower dose and work up. If something feels off, stop and reassess.
- Who benefits most from this?
- People who've already covered the basics (diet, sleep, exercise) and want to fine-tune. It's not essential, but could be worthwhile for the right person.
Why these belong in the same formula. Each row says what the basis is, from settled biochemistry through to a trial that measured the pair.
The standardised Scandinavian preparation pairs andrographis with eleuthero, and much of the clinical record for andrographis was built on that combination. Eleuthero contributes the adaptive side while andrographolide carries the immune signalling.
Echinacea alkylamides act on cannabinoid receptor 2 on immune cells, while andrographolide works through NF-kappaB signalling. Two different upstream levers on the same response.
Elderberry anthocyanins act at the level of viral entry and cytokine balance, a different point from andrographolide's transcriptional effect. Seasonal formulas routinely carry both.
Zinc is required for thymulin activity and for normal T-cell development, and its status limits how well an immune response can be mounted. Andrographis modulates signalling but supplies no cofactor.
Neutrophils concentrate ascorbate many times over plasma levels and consume it during the respiratory burst. That demand sits alongside, not inside, andrographis's signalling effect.
Piperine slows intestinal and hepatic glucuronidation, the main clearance route for andrographolide. Blood levels of the diterpene run higher and longer as a result.
Andrographolide reduces platelet aggregation, and EPA shifts eicosanoid balance towards less aggregatory thromboxane. Taken together the effect on normal clotting is additive.
Ginkgolide B antagonises platelet activating factor, a separate route to the same endpoint andrographolide reaches. The two overlap on normal platelet function.
Garlic organosulfur compounds reduce platelet aggregation through thromboxane synthesis. Combined with andrographis the effect on normal clotting stacks.
Both are cleared largely by glucuronidation in the liver and gut wall. Co-dosing shifts the pace at which each is conjugated and cleared.
AP is the standardised andrographolide-bearing extract of the same plant. Combining a standardised extract with a whole-herb powder stacks the same diterpene.
Andrographolide and curcumin are both lipophilic, poorly soluble and heavily conjugated on first pass. They are commonly built into the same lipid or phospholipid delivery systems for that reason. The pairing is a formulation logic and a shared metabolic route rather than a measured combined effect.
Ginger and Andrographis appear together in traditional preparations, and both undergo extensive glucuronidation and sulfation. Stacking them loads the same conjugation capacity. The pairing is customary rather than trial-tested.
Licorice is used in traditional formulas to make bitter herbs palatable and is frequently paired with Andrographis on that basis. The rationale is sensory and traditional. Licorice carries its own considerations at higher intakes, notably its effect on potassium and blood pressure, so the pairing is not free of consequence.
Astragalus and Andrographis are conventional partners in traditional formulation practice for seasonal immune support. Neither the combination nor a shared mechanism has been mapped in controlled human work. The row records the formulation convention, not an effect.
Reishi contributes beta-glucans and triterpenes while Andrographis contributes diterpenoid lactones, so the two are chemically distinct inputs to the same product concept. Combination data does not exist. This is formulation convention.
Cordyceps and Andrographis are routinely combined in seasonal-support formulas. The actives are unrelated and no interaction is described. The pairing is convention, and the row exists so it is not mistaken for a tested synergy.
Turkey tail supplies polysaccharide fractions and Andrographis supplies andrographolide, two chemically separate inputs. Products combine them for breadth of the ingredient list. No combination study exists.
Propolis and Andrographis extract turn up together in throat sprays and lozenges. The rationale is category convention and complementary sensory profile. Nothing has been measured about the pair.
Quercetin is a well-described inhibitor and substrate of UDP-glucuronosyltransferases, and andrographolide is cleared largely by sulfation and glucuronidation. Co-dosing plausibly raises unconjugated andrographolide exposure. The direction is mechanistic and has not been quantified for this pair, so read it as a reason to keep doses conservative rather than as a delivery strategy.
EGCG competes for sulfotransferase and glucuronosyltransferase capacity, the same routes that clear andrographolide. Concentrated extracts of both have been associated with liver enzyme changes in case reports of their own, so stacking two concentrated extracts is a decision to make deliberately. Liver enzymes are markers, not outcomes.
The alpha,beta-unsaturated lactone of andrographolide is a Michael acceptor and forms adducts with cysteine thiols, which is how much of its cellular activity is described. Adding a large thiol load from NAC changes the pool that chemistry meets. The direction of the net effect is not established, so the row is mechanistic.
Silymarin components inhibit UGT and some CYP isoforms in vitro, which overlaps the clearance route of andrographolide. Products combine them anyway on category logic. Read the pairing as a pharmacokinetic caution to check rather than as a benefit.
Boswellic acids and andrographolide are both poorly water-soluble and both absorb better from a fat-containing meal or a lipid vehicle. They are often placed in the same softgel for that reason. The shared constraint is real; a combined effect has not been measured.
Bromelain is included in botanical formulas on the argument that it improves uptake of co-administered actives. Evidence for that specific role with andrographolide does not exist. The row records the practice and its limit.
Poorly water-soluble diterpenoid lactones dissolve into a medium-chain triglyceride phase, which keeps them in solution through gastric transit instead of precipitating. This is standard lipid-vehicle formulation for lipophilic botanicals. It changes delivery, not the intrinsic activity of the molecule.
Phospholipid complexation gives a lipophilic plant active an amphiphilic surface, so it disperses in gut fluid rather than sitting undissolved. The approach is used across the poorly soluble botanicals and applies to andrographolide on the same chemistry. It is a delivery decision.
Complexing a lipophilic plant active with phosphatidylcholine is the established phytosome approach to solubility-limited absorption. Andrographolide meets the criteria for that approach. The complex changes dissolution behaviour rather than the molecule itself.
Nitrate from beetroot raises nitric oxide availability and modestly lowers blood pressure in human trials, and andrographolide shows a hypotensive direction in animal studies. Two inputs pointing the same way are worth declaring for anyone already managing blood pressure with medication. The animal data does not carry to humans on its own.
Berberine lowers fasting glucose in human trials and andrographolide lowers it in rodent models. Stacked, the direction is additive and matters most for anyone already using glucose-lowering medication. The andrographolide side is preclinical and should not be read as a human finding.
Gymnema and Andrographis both appear in blood-sugar-support blends and both carry a glucose-lowering direction in the available work. The additive point is one to declare for people on medication. Neither the combination nor the size of the combined effect has been measured.
Cinnamon extract shows small fasting glucose reductions in pooled human data and andrographolide shows the same direction in animals. The combination is a stacking caution rather than a benefit claim. Report it as additive direction, not as an established combined effect.
Both point toward reduced clot formation from different directions, one on platelets and one on fibrin. Anyone on anticoagulant or antiplatelet medication should have that combination on the record. The evidence is preclinical on both sides of this pairing.
Concentrated bitter botanical extracts show broad antimicrobial activity in laboratory assays, and that activity does not distinguish supplemented strains from resident ones. Separating dosing times is the conventional handling. Whether this matters at supplement doses in a real gut has not been measured.
Vitamin D acts through a nuclear receptor and its own hydroxylation cascade, entirely separate from andrographolide chemistry. Products combine them for category breadth. The row exists to note there is no interaction, only co-formulation.
Nothing specific on file for Andrographis (AP Extract). Match the label to the daily amount above, and tell your doctor what you take.
Not medical advice. Show the label to your pharmacist.What Andrographis (AP Extract) actually does.
Andrographolide, a labdane diterpenoid lactone, is the principal marker compound of Andrographis paniculata and is what standardised AP extracts are assayed against; related compounds neoandrographolide and 14-deoxyandrographolide travel with it.
Extract strength is expressed as a percentage of andrographolide or of total andrographolides, so two products at the same milligram weight can differ several-fold in the amount of marker compound delivered.
Andrographolide carries an alpha,beta-unsaturated gamma-lactone, an electrophilic centre that forms covalent adducts with cysteine thiols on proteins. Much of its described cellular activity runs through that thiol reactivity rather than through a single receptor.
Andrographolide is poorly water-soluble and is cleared rapidly by phase II conjugation, mainly sulfation and glucuronidation, which is why plasma exposure is short-lived and why lipid and phospholipid delivery systems are used.
Where Andrographis (AP Extract) comes from.
The plant is grown, dried, and soaked in alcohol to pull out its bitter active compounds. The extract is then measured in a lab so each batch carries a stated amount, and that measurement is where the real differences between products sit.
Made from a plant. What ends up in the capsule tracks the harvest, so batch testing and a stated marker matter more here than with a made molecule.
Leaves and stems harvested at flowering, when andrographolide content in the leaf is at its usual peak. India, Thailand and China are the main production areas.
Aerial parts are shade or tray dried to a low moisture content and milled. Prolonged heat degrades the diterpenoid lactones, so drying is kept moderate.
Milled herb is extracted with ethanol, methanol or aqueous ethanol, which recovers the lipophilic lactone fraction that water alone leaves behind.
The extract is concentrated under vacuum and the solvent removed to residual limits, then spray or vacuum dried onto a carrier such as maltodextrin.
Content is measured by HPLC and adjusted with carrier or with higher-potency material to hit a declared percentage. The declaration may be single-marker andrographolide or total andrographolides, and the two are not the same number.
Dried extract is encapsulated or tabletted, or complexed with phospholipid for a dispersible format.
Extraction solvent, the standardisation basis and the carrier used to hit the declared percentage are rarely stated on a label.
Getting Andrographis (AP Extract) from food.
The whole-food sources on file. A supplement closes the gap, it does not replace dinner.
A gram-for-gram figure (how much of each you would eat to match a dose) will appear here once it is sourced and reviewed. This page will not print a number it cannot cite.
The forms it comes in.
The essence, in one line each.
- Dietary Andrographis paniculata leaf and whole plant altered rumen fermentation measures and fatty acid profile in the animals studied; these are ruminant digestive markers and do not carry to human physiology.Animal study. Yusuf et al., 2017 (BMC Veterinary Research). PMID 29178910 ↗
- A review of Andrographis paniculata supplementation in monogastric farm animals, covering reported health and productivity measures; it summarises livestock feeding work and is not human evidence.Narrative review. Redlarska et al., 2025 (Animal Nutrition). PMID 41321521 ↗
- Names Andrographis paniculata among traditional plants discussed for respiratory symptom relief; the paper is descriptive and reports no efficacy finding of its own for this plant.Narrative review. Chatatikun et al., 2024 (Frontiers in Pharmacology). PMID 39391697 ↗
These are the studies our verdict leans on, chosen from the 3 we read for Andrographis (AP Extract). The full linked list is below.
FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. This information is for educational purposes only and is not intended to diagnose, treat, cure, or prevent any disease. Consult your healthcare provider before starting any supplement regimen.