Loading...
Loading...
Medical Disclaimer: This information is for educational purposes only and is not a substitute for professional medical advice.
Non-Standardized Pollen Allergenic Extract [EPC]
Lonicera Japonica Flower extract is a non-standardized pollen allergenic extract used in clinical immunology for the diagnosis and treatment of specific allergic sensitivities through immunotherapy.
Name
Lonicera Japonica Flower
Raw Name
LONICERA JAPONICA FLOWER
Category
Non-Standardized Pollen Allergenic Extract [EPC]
Drug Count
5
Variant Count
5
Last Verified
February 17, 2026
About Lonicera Japonica Flower
Lonicera Japonica Flower extract is a non-standardized pollen allergenic extract used in clinical immunology for the diagnosis and treatment of specific allergic sensitivities through immunotherapy.
Detailed information about Lonicera Japonica Flower
This page is for informational purposes only and does not replace medical advice. Consult a qualified healthcare professional before using any medication containing Lonicera Japonica Flower.
Lonicera Japonica Flower, commonly known as Japanese Honeysuckle, is a perennial flowering plant native to East Asia that has become widely naturalized globally. In the context of modern clinical pharmacology, Lonicera Japonica Flower refers to a specific pharmaceutical preparation classified as a Non-Standardized Pollen Allergenic Extract [EPC]. This biological product is primarily utilized by allergists and immunologists for the diagnosis and treatment of Type I hypersensitivity (allergic) reactions.
Belonging to the class of allergenic extracts, Lonicera Japonica Flower works by exposing the patient's immune system to minute, controlled amounts of the offending allergen. Unlike standardized extracts, which are measured in Bioequivalent Allergy Units (BAU), non-standardized extracts like Lonicera Japonica are typically measured by weight/volume (w/v) or Protein Nitrogen Units (PNU). The FDA regulates these products as biologics under the Center for Biologics Evaluation and Research (CBER). While Lonicera Japonica has a deep history in traditional Chinese medicine (known as Jin Yin Hua), its pharmaceutical application in Western medicine is strictly focused on allergen immunotherapy (AIT) and diagnostic skin testing.
The therapeutic mechanism of Lonicera Japonica Flower extract in immunotherapy is complex and involves a fundamental reprogramming of the patient's immune response. When a patient is allergic to honeysuckle pollen, their immune system mistakenly identifies the pollen proteins as dangerous, leading to the production of Immunoglobulin E (IgE) antibodies. These IgE antibodies bind to mast cells and basophils. Upon subsequent exposure, the allergen cross-links these IgE antibodies, triggering the release of inflammatory mediators like histamine, leukotrienes, and cytokines, which cause the symptoms of hay fever (allergic rhinitis).
Lonicera Japonica Flower immunotherapy works through a process called 'desensitization' or 'hyposensitization.' By administering gradually increasing doses of the extract via subcutaneous injection (SCIT), the immune system shifts from a Th2-dominated response (allergic) to a Th1-dominated or regulatory T-cell (Treg) response. This shift results in:
As a biological allergenic extract, the pharmacokinetics of Lonicera Japonica Flower differ significantly from traditional small-molecule drugs.
Lonicera Japonica Flower extract is indicated for two primary clinical purposes:
Lonicera Japonica Flower extract is typically available in the following concentrated forms for clinical use:
> Important: Only your healthcare provider can determine if Lonicera Japonica Flower is right for your specific condition. Immunotherapy should only be conducted under the supervision of a physician trained in the management of anaphylaxis.
Dosage for Lonicera Japonica Flower extract is highly individualized and must be determined by an allergy specialist based on the patient's sensitivity level. There is no 'standard' dose for non-standardized extracts. Dosing is divided into two phases:
During this phase, the patient receives injections once or twice weekly. The starting dose is usually 0.05 mL of a very high dilution (e.g., 1:100,000 w/v). The dose is gradually increased by 10% to 50% at each visit, provided the previous dose was well-tolerated. This phase typically lasts 3 to 6 months.
Once the 'maintenance dose' (the highest dose the patient can tolerate without a significant systemic reaction) is reached, the frequency of injections is decreased. Maintenance injections are usually given every 2 to 4 weeks. A common maintenance dose range for non-standardized extracts is 0.5 mL of a 1:100 w/v or 1:20 w/v concentration.
Lonicera Japonica Flower extract is generally considered safe for use in children, typically those aged 5 years and older. Dosing protocols for children follow the same buildup and maintenance logic as adult dosing, though the physician may choose a more conservative escalation schedule. Immunotherapy is rarely initiated in children under age 5 due to the difficulty of communicating systemic symptoms and the potential risks of anaphylaxis in very young patients.
No specific dose adjustments are provided in the manufacturer's labeling for renal impairment. However, clinicians should exercise caution as the clearance of metabolic fragments may be delayed.
No dosage adjustments are required for patients with liver disease, as the metabolism of allergenic proteins is primarily proteolytic and not dependent on hepatic CYP450 enzymes.
Elderly patients (over 65) require careful assessment. While no specific dose reduction is mandated, the risk of cardiac complications from epinephrine (required if an allergic reaction occurs) must be weighed against the benefits of immunotherapy.
If a dose is missed during the buildup phase, the next dose may need to be reduced or the previous dose repeated to ensure safety. If a maintenance dose is missed for more than 4-6 weeks, the physician will typically reduce the dose and gradually build back up to the maintenance level. Never attempt to 'double up' on doses to catch up.
An 'overdose' in the context of allergenic extracts usually refers to an injection of a dose higher than the patient's current tolerance level. Signs of overdose include:
In the event of an overdose or systemic reaction, emergency medical treatment with epinephrine is required immediately.
> Important: Follow your healthcare provider's dosing instructions. Do not adjust your dose without medical guidance. Always inform your doctor if you feel unwell on the day of your scheduled injection.
Local reactions at the site of injection are the most frequent side effect of Lonicera Japonica Flower immunotherapy. These are generally considered a normal part of the immune system's response to the allergen.
> Warning: Stop taking Lonicera Japonica Flower and call your doctor immediately or seek emergency care if you experience any of these symptoms of Anaphylaxis.
There are no known 'cumulative' toxicities associated with the long-term use of Lonicera Japonica Flower extract. Immunotherapy is often continued for 3 to 5 years. The primary long-term effect is the desired 'immunological tolerance,' where the patient no longer reacts to the pollen in the environment. In rare cases, some patients may develop persistent subcutaneous nodules (small lumps) at the injection sites, which are usually benign and resolve over time.
Report any unusual symptoms to your healthcare provider. Even a 'minor' systemic symptom like itchy palms or a dry cough should be reported immediately, as it may precede a more severe reaction.
Lonicera Japonica Flower extract is a potent biological agent. Its use is strictly limited to patients with a confirmed diagnosis of IgE-mediated allergy. It is not a general 'immune booster' and should not be used for non-allergic conditions. Safety depends entirely on the accuracy of the dose and the clinical environment in which it is administered.
As noted in the side effects section, all allergenic extracts, including Lonicera Japonica Flower, carry a Black Box Warning regarding the risk of anaphylaxis. According to the FDA-approved labeling, the risk is highest during the buildup phase and in patients with comorbid asthma. The warning emphasizes that 'failure to stay in the physician's office for the required observation period has been associated with fatal outcomes.'
Lonicera Japonica Flower extract does not directly cause sedation. However, if a patient experiences a systemic reaction or is given an antihistamine or epinephrine to treat a reaction, their ability to drive or operate machinery may be significantly impaired. It is generally recommended to wait until you are certain no reaction is occurring before driving.
Alcohol consumption should be avoided for several hours before and after an injection. Alcohol causes vasodilation (widening of blood vessels), which can increase the rate of allergen absorption and potentially increase the risk or severity of a systemic reaction.
Immunotherapy is typically discontinued after 3 to 5 years of successful maintenance. There is no 'withdrawal' syndrome associated with stopping Lonicera Japonica Flower extract. However, if treatment is stopped prematurely (e.g., after only 1 year), the allergic symptoms are likely to return quickly.
> Important: Discuss all your medical conditions, especially heart disease or lung problems, with your healthcare provider before starting Lonicera Japonica Flower.
> Important: Tell your doctor about ALL medications, supplements, and herbal products you are taking, including over-the-counter eye drops and nasal sprays.
Lonicera Japonica belongs to the Caprifoliaceae family. Patients who are highly allergic to other members of this family or related species may show cross-reactivity. However, cross-reactivity between honeysuckle and common pollens like ragweed is generally low. Your allergist will use specific testing to confirm the exact nature of your sensitivity.
> Important: Your healthcare provider will evaluate your complete medical history, including your lung function and heart health, before prescribing Lonicera Japonica Flower.
Pregnancy Category: Not Assigned (Biologic).
Lonicera Japonica Flower extract is not known to pass into breast milk in any significant way. The allergenic proteins are large and are likely broken down before reaching the milk. Breastfeeding is generally considered safe for women receiving maintenance immunotherapy.
Immunotherapy is highly effective in children and has been shown to prevent the 'allergic march'—the progression from allergic rhinitis to asthma. It is also effective in preventing the development of new sensitivities to other pollens. The safety profile in children is similar to adults, though monitoring must be more vigilant as children may not be able to articulate symptoms like 'itchy throat' or 'feeling of doom.'
In patients over 65, the decision to use Lonicera Japonica Flower extract must be individualized. Older adults are more likely to have underlying cardiovascular disease, which makes them more vulnerable to the side effects of epinephrine if a reaction occurs. However, if the patient is in good health and their allergies significantly impact their quality of life, immunotherapy can be safely administered.
There are no specific guidelines for renal impairment. Because the product is a protein extract that undergoes proteolysis, it is unlikely that renal failure would lead to the accumulation of the active allergen. However, general medical caution is advised in patients with Stage 4 or 5 Chronic Kidney Disease.
No dosage adjustments are required. The liver does not play a primary role in the clearance of the allergenic proteins found in Lonicera Japonica Flower extract.
> Important: Special populations require individualized medical assessment. Always inform your allergist if you become pregnant or develop new health problems during the course of your treatment.
Lonicera Japonica Flower extract works by modulating the adaptive immune system. Specifically, it targets the B-cell and T-cell response to honeysuckle pollen.
| Parameter | Value |
|---|---|
| Bioavailability | N/A (Subcutaneous administration) |
| Protein Binding | Minimal (Local tissue interaction) |
| Half-life | Immunological effect: Years; Protein half-life: Hours |
| Tmax | 30–60 minutes (for systemic absorption) |
| Metabolism | Proteolytic degradation by peptidases |
| Excretion | Renal (as small peptide fragments) |
Lonicera Japonica Flower belongs to the Non-Standardized Pollen Allergenic Extract [EPC] class. It is categorized as a biological product. Related medications include other non-standardized extracts like Oak, Elm, or various weed pollens used in customized allergy 'cocktails.'
Medications containing this ingredient
Common questions about Lonicera Japonica Flower
In a clinical setting, Lonicera Japonica Flower extract is used for the diagnosis and treatment of honeysuckle pollen allergies. It is utilized in skin prick tests to confirm if a patient is allergic to the plant. Furthermore, it is used in allergen immunotherapy (allergy shots) to desensitize the immune system over time. This treatment helps reduce symptoms of allergic rhinitis and asthma caused by honeysuckle exposure. It is not used as a general medication but as a targeted immunological therapy.
The most common side effects are local reactions at the site of the injection, occurring in nearly all patients at some point. These include redness, swelling, itching, and minor soreness that usually resolve within 24 to 48 hours. Some patients may also experience mild systemic symptoms like sneezing or fatigue. Large local reactions, where the swelling exceeds the size of a large coin, occur in about 5-10% of patients. Serious reactions like anaphylaxis are rare but require immediate medical intervention.
It is strongly advised to avoid alcohol on the days you receive your Lonicera Japonica Flower injections. Alcohol can cause your blood vessels to dilate, which might speed up the absorption of the allergen into your bloodstream and increase the risk of a severe allergic reaction. Additionally, alcohol can make it harder for you to recognize the early symptoms of a reaction. Most allergists recommend waiting at least 24 hours after an injection before consuming alcohol. Always follow the specific safety protocols provided by your allergy clinic.
Lonicera Japonica Flower immunotherapy is generally not started during pregnancy due to the risk of anaphylaxis, which could harm the fetus. However, if a woman is already on a stable maintenance dose and becomes pregnant, many doctors allow the treatment to continue at that same dose. The primary concern is the safety of the mother and the avoidance of systemic reactions that could cause uterine contractions or low oxygen for the baby. You must inform your allergist immediately if you become pregnant. A careful risk-benefit analysis will be conducted to decide whether to continue or pause the treatment.
Immunotherapy with Lonicera Japonica Flower is a slow process that requires patience. Most patients do not see a significant improvement in their allergy symptoms until they reach the maintenance phase, which typically takes 3 to 6 months. Substantial relief is usually noted after the first full year of treatment. For the best long-term results and a potential 'cure' for the allergy, the treatment is usually continued for 3 to 5 years. If no improvement is seen after two years of maintenance, the doctor may re-evaluate the treatment plan.
Yes, you can stop taking the injections suddenly without experiencing physical withdrawal symptoms like those seen with some other drugs. However, stopping the treatment before the recommended 3-to-5-year course is finished usually means your allergy symptoms will return. The immune system requires a long period of exposure to the extract to maintain long-term tolerance. If you need to stop due to side effects or life changes, discuss it with your doctor first. They may suggest a different schedule or a gradual tapering if you plan to restart later.
If you miss a dose, contact your allergist's office as soon as possible to reschedule. Do not try to make up for the missed dose by taking a higher dose later. Depending on how many weeks have passed since your last injection, your doctor may need to reduce your next dose to ensure your safety. If you are in the buildup phase, even a one-week delay might require a dose adjustment. Consistency is key to the success of immunotherapy, so try to stick to your scheduled appointments as closely as possible.
There is no clinical evidence to suggest that Lonicera Japonica Flower allergenic extract causes weight gain. Unlike oral corticosteroids, which are sometimes used for allergies and are known to cause weight changes, allergenic extracts are proteins that work on the immune system without affecting metabolism or appetite. If you experience weight gain while on this treatment, it is likely due to other factors or medications you may be taking. Always discuss unexplained weight changes with your primary care physician. This medication is focused solely on immunological desensitization.
Lonicera Japonica Flower extract can be taken with most common medications, but there are critical exceptions. You must tell your doctor if you are taking beta-blockers, ACE inhibitors, or MAO inhibitors, as these can make allergic reactions more dangerous or harder to treat. Standard allergy medications like antihistamines and nasal steroids are usually continued during treatment. However, you should avoid starting any new medications without consulting your allergist. Some drugs can interfere with the body's ability to respond to emergency treatments if a reaction occurs.
Allergenic extracts like Lonicera Japonica Flower are biological products rather than simple chemical drugs, so the term 'generic' does not apply in the traditional sense. Instead, various manufacturers produce their own versions of the extract, which are considered 'comparable' but not necessarily identical. These are often referred to as 'non-standardized extracts.' Your allergist will typically use a consistent brand for your treatment to ensure the dosing remains stable. Because these are biologics, they are regulated differently than standard generic pills.