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Medical Disclaimer: This information is for educational purposes only and is not a substitute for professional medical advice.
Viburnum Opulus
Brand Name
Viburnum Opulus
Generic Name
Viburnum Opulus
Active Ingredient
Viburnum Opulus BarkCategory
Non-Standardized Insect Allergenic Extract [EPC]
Variants
8
Different strengths and dosage forms
| Strength | Form | Route | NDC |
|---|---|---|---|
| 30 [hp_C]/1 | PELLET | ORAL | 37662-1343 |
| 6 [hp_C]/1 | PELLET | ORAL | 37662-1341 |
| 12 [hp_C]/1 | PELLET | ORAL | 37662-1342 |
This page is for informational purposes only and does not replace medical advice. Before using any prescription or over-the-counter medication for Viburnum Opulus, you must consult a qualified healthcare professional.
| 200 [hp_C]/1 | PELLET | ORAL | 37662-1345 |
| 500 [hp_C]/1 | PELLET | ORAL | 37662-1346 |
| 1 [hp_M]/1 | PELLET | ORAL | 37662-1347 |
| 1 [hp_Q]/1 | PELLET | ORAL | 37662-1348 |
| 100 [hp_C]/1 | PELLET | ORAL | 37662-1344 |
Detailed information about Viburnum Opulus
Viburnum Opulus Bark is a therapeutic botanical extract classified as a Non-Standardized Plant Allergenic Extract and used for its estrogenic and adrenergic modulating properties in various clinical and diagnostic contexts.
The dosage of Viburnum Opulus Bark must be individualized based on the condition being treated and the specific formulation used. For general smooth muscle relaxation and menstrual support, the standard adult dosage typically ranges from 500 mg to 1,000 mg of the dried bark extract, taken three times daily. If using a 1:5 liquid tincture, the common dose is 2 mL to 5 mL (approximately 40 to 100 drops) diluted in water, administered three times a day. For allergenic immunotherapy, the dosage is determined by a specialized 'escalation schedule' managed by an allergist, starting at extremely low concentrations (e.g., 0.01 mL of a 1:100,000 dilution) and increasing gradually to a maintenance dose.
The safety and efficacy of Viburnum Opulus Bark in pediatric populations have not been extensively established through clinical trials. Consequently, it is generally not recommended for use in children under the age of 12 unless specifically directed by a pediatric specialist. For adolescents aged 12 to 18, healthcare providers may consider a reduced dose, typically 50% of the adult starting dose, while closely monitoring for adverse effects or allergic reactions.
Because the metabolites of Viburnum Opulus Bark are primarily cleared through the kidneys, patients with a glomerular filtration rate (GFR) below 60 mL/min should exercise caution. A dose reduction of 25-50% may be necessary to prevent accumulation and potential toxicity.
Patients with significant liver disease (e.g., cirrhosis or hepatitis) may experience impaired metabolism of the coumarin and terpene components. Monitoring of liver function tests (LFTs) is recommended, and the lowest effective dose should be utilized.
Geriatric patients often have reduced physiological reserves and are more susceptible to the adrenergic effects of the drug. Healthcare providers typically start elderly patients at the lower end of the dosing range (e.g., 250 mg twice daily) to minimize the risk of hypotension or cardiac palpitations.
To maximize the efficacy of Viburnum Opulus Bark, follow these specific administration guidelines:
If a dose is missed, it should be taken as soon as the patient remembers. However, if it is nearly time for the next scheduled dose, the missed dose should be skipped. Do not double the dose to make up for a missed one, as this increases the risk of adrenergic overstimulation.
Signs of an overdose of Viburnum Opulus Bark may include severe nausea, vomiting, profound hypotension (low blood pressure), bradycardia (slow heart rate), or extreme lethargy. In cases of significant overconsumption, emergency medical services should be contacted immediately. Management typically involves gastric lavage (stomach pumping) if performed shortly after ingestion, followed by supportive care, including intravenous fluids and cardiac monitoring.
> Important: Follow your healthcare provider's dosing instructions precisely. Do not adjust your dose or stop taking the medication without first consulting medical guidance.
Patients taking Viburnum Opulus Bark frequently report mild gastrointestinal disturbances. These may manifest as nausea, stomach cramps, or loose stools. These symptoms often occur within the first hour of ingestion and typically resolve as the body adjusts to the medication. Some patients also experience a mild 'warming' sensation or flushing, which is attributed to the adrenergic-mediated changes in vascular tone. Dizziness or lightheadedness, particularly when rising from a seated position (orthostatic hypotension), is also common during the initial days of therapy.
Less frequent adverse reactions include headaches, palpitations, and increased perspiration. Some individuals may notice a mild sedative effect or a feeling of general relaxation that exceeds the intended therapeutic goal. Dermatological reactions, such as a mild pruritic (itchy) rash or hives, have been reported in patients with sensitivities to other members of the Caprifoliaceae or Adoxaceae families.
Viburnum Opulus Bark is a potent pharmacological agent with significant effects on the cardiovascular and endocrine systems. It should only be used under the supervision of a qualified healthcare professional. Patients with a history of hormone-sensitive conditions or cardiovascular instability must be particularly cautious. Because it contains salicin-like compounds (precursors to aspirin), individuals with a known aspirin allergy should avoid this product.
No FDA black box warnings for Viburnum Opulus Bark. However, the FDA requires that all allergenic extracts carry a general warning regarding the risk of severe systemic allergic reactions, including anaphylaxis, which can be fatal if not treated immediately with epinephrine.
As a Non-Standardized Plant Allergenic Extract, there is an inherent risk of hypersensitivity. Patients with known allergies to honeysuckle, elderberry, or other related plants are at a significantly higher risk. If you experience itching, swelling, or shortness of breath, discontinue use immediately.
Viburnum Opulus Bark should never be used in combination with the following:
Viburnum Opulus Bark must NEVER be used in the following situations:
FDA Pregnancy Category: Not Assigned (Traditionally contraindicated).
While some traditional practices use Viburnum Opulus Bark to prevent 'threatened miscarriage' in later pregnancy, modern clinical guidance strongly advises against its use during the first trimester. The adrenergic and estrogenic effects can alter uterine tone unpredictably. There is no reliable data on its teratogenicity (ability to cause birth defects) in humans. Pregnant women should only use this substance if the potential benefit clearly outweighs the risk to the fetus, and only under the direct supervision of an obstetrician.
It is unknown whether the active constituents of Viburnum Opulus Bark are excreted in human milk. Due to the potential for adrenergic effects (such as irritability or tachycardia) in the nursing infant, use during breastfeeding is generally discouraged. If use is deemed necessary, the infant should be closely monitored for changes in sleep patterns or feeding behavior.
Viburnum Opulus Bark exerts its effects through a multi-target pharmacological approach. The primary molecular targets include:
Common questions about Viburnum Opulus
Viburnum Opulus Bark, also known as Cramp Bark, is primarily used in clinical settings as a non-standardized plant allergenic extract for diagnostic allergy testing. In traditional and complementary medicine, it is frequently utilized to relieve smooth muscle spasms, particularly those associated with painful menstrual cramps (dysmenorrhea) and gastrointestinal distress. Its pharmacological profile as an estrogen receptor agonist and adrenergic modulator also allows it to be used for managing mild hormonal imbalances and vascular tone. However, it is essential to consult a healthcare provider before using it for any of these purposes to ensure it is appropriate for your specific medical history. The drug is often found in specialized formulations for women's health and allergenic immunotherapy.
The most frequently reported side effects of Viburnum Opulus Bark include gastrointestinal issues such as nausea, stomach upset, and mild diarrhea. Because of its effects on the adrenergic system, some patients may also experience dizziness, lightheadedness, or a temporary drop in blood pressure, especially when standing up quickly. Flushing or a feeling of warmth in the skin is also common due to changes in blood vessel diameter. Most of these side effects are mild and tend to diminish as the body becomes accustomed to the extract. If these symptoms persist or become bothersome, you should contact your healthcare provider for a dosage adjustment.
It is generally advised to avoid or strictly limit alcohol consumption while taking Viburnum Opulus Bark. Alcohol can increase the risk of dizziness and lightheadedness caused by the drug's effect on blood pressure, potentially leading to falls or accidents. Furthermore, both alcohol and certain compounds in the bark can irritate the stomach lining, increasing the likelihood of nausea or gastric pain. Alcohol may also interfere with the liver's ability to metabolize the drug's active components, such as coumarins, which could lead to increased toxicity. Always discuss your alcohol intake with your doctor before starting any new medication or herbal extract.
Viburnum Opulus Bark is generally considered unsafe during the first trimester of pregnancy due to its historical use as a uterine stimulant and emmenagogue, which may increase the risk of miscarriage. While some traditional practitioners use it in later pregnancy to prevent premature contractions, this must only be done under the strict supervision of an obstetrician. There is insufficient modern clinical data to guarantee its safety regarding fetal development or long-term outcomes. Because it acts on estrogen receptors and adrenergic pathways, it can have unpredictable effects on the pregnancy. Pregnant women should always seek professional medical advice before using any botanical or allergenic extract.
For acute conditions like menstrual cramps or muscle spasms, many patients notice an improvement within 30 to 60 minutes after taking an oral dose of the liquid tincture or capsule. The peak effect is usually reached within 2 hours of ingestion. However, for more chronic issues or when used as part of an allergenic immunotherapy program, it may take several weeks of consistent use to observe the full therapeutic benefits. The speed of action can be influenced by whether the medication is taken on an empty stomach or with a high-fat meal, the latter of which may delay absorption. Consistent dosing as prescribed by a healthcare provider is key to achieving optimal results.
While Viburnum Opulus Bark is not known to cause physical dependence or a severe withdrawal syndrome, it is usually best to taper off the medication gradually rather than stopping abruptly. Sudden discontinuation, especially after long-term use at high doses, may lead to a rapid return of the symptoms being treated, such as severe muscle cramping. Some patients may also experience a temporary 'rebound' effect in their blood pressure or heart rate due to the drug's adrenergic properties. If you wish to stop taking the extract, consult your healthcare provider for a safe reduction schedule. This ensures your body can readjust to its natural physiological state without discomfort.
If you miss a dose of Viburnum Opulus Bark, you should take it as soon as you remember. However, if it is almost time for your next scheduled dose, skip the missed dose and continue with your regular dosing schedule. You should never take two doses at once to make up for a missed one, as this can significantly increase the risk of adverse effects like heart palpitations or a sharp drop in blood pressure. Maintaining a consistent level of the drug in your system is important for its effectiveness. If you frequently forget doses, consider using a pill reminder app or a daily pill organizer to stay on track.
There is currently no clinical evidence to suggest that Viburnum Opulus Bark causes significant weight gain in most patients. Unlike some other hormonal treatments, its estrogenic activity is relatively mild and typically does not lead to the significant fluid retention or metabolic changes associated with weight fluctuations. However, because it can affect vascular tone and potentially cause mild edema (swelling) in rare cases, some individuals might notice a slight, temporary change in weight. If you experience rapid or unexplained weight gain while taking this medication, it is important to contact your healthcare provider to rule out other underlying causes, such as heart or kidney issues.
Viburnum Opulus Bark has a high potential for interacting with other medications, particularly blood thinners like Warfarin and blood pressure medications. Because it contains coumarin-like substances, it can enhance the effect of anticoagulants, increasing your risk of bleeding. It may also interfere with the effectiveness of medications used to treat heart disease or high blood pressure due to its adrenergic agonist properties. Additionally, taking it alongside other hormone-based therapies or NSAIDs like ibuprofen can increase the risk of side effects. It is critical to provide your doctor with a complete list of all prescriptions, over-the-counter drugs, and supplements you are taking before starting this extract.
Viburnum Opulus Bark is primarily available as a botanical extract, dietary supplement, or a non-standardized allergenic extract rather than a traditional 'brand-name' versus 'generic' prescription drug. Many different manufacturers produce versions of this extract, and while they all contain the same active ingredient, the concentration and purity can vary significantly between products. When purchasing, look for products that are standardized to a specific active constituent and manufactured in a facility that follows Good Manufacturing Practices (GMP). Because it is not regulated as a standard pharmaceutical in many regions, 'generic' equivalents in the traditional sense do not exist, but various high-quality versions are widely available.
Rarely, Viburnum Opulus Bark may cause significant hepatic enzyme elevations, suggesting a potential for idiosyncratic liver injury. There have been isolated reports of paradoxical excitation, where the patient experiences anxiety, insomnia, and an increased heart rate instead of the expected muscle relaxation. Hypersensitivity reactions involving the respiratory tract, such as mild bronchospasm, are extremely rare but have occurred in patients using the allergenic extract form.
> Warning: Stop taking Viburnum Opulus Bark and call your doctor immediately if you experience any of the following serious symptoms:
Prolonged use of Viburnum Opulus Bark (exceeding 6 months) has not been extensively studied. However, based on its estrogenic MoA, there is a theoretical risk of endometrial thickening in post-menopausal women if used long-term without progestogen opposition. Additionally, chronic use may lead to a gradual reduction in the drug's efficacy (tolerance), requiring higher doses to achieve the same antispasmodic effect.
Currently, there are no FDA black box warnings specifically for Viburnum Opulus Bark. However, it is important to note that many products containing this ingredient are marketed as dietary supplements and do not undergo the same rigorous pre-market safety review as prescription drugs. Patients should ensure they are using a product from a reputable manufacturer that adheres to Good Manufacturing Practices (GMP).
Report any unusual or persistent symptoms to your healthcare provider promptly. Monitoring of blood pressure and heart rate is recommended for all patients beginning therapy with Viburnum Opulus Bark.
Due to its alpha and beta-adrenergic agonism, Viburnum Opulus Bark can influence blood pressure and heart rate. It should be used with extreme caution in patients with hypertension, cardiac arrhythmias, or a history of myocardial infarction (heart attack).
Patients taking therapeutic doses of Viburnum Opulus Bark should undergo the following monitoring:
Viburnum Opulus Bark may cause dizziness, lightheadedness, or mild sedation in some individuals. Patients should assess their reaction to the medication before driving or operating heavy machinery. If you feel drowsy or unsteady, avoid these activities.
Alcohol should be avoided or strictly limited while taking Viburnum Opulus Bark. Alcohol can potentiate the sedative effects of the extract and increase the risk of gastrointestinal irritation and orthostatic hypotension.
While Viburnum Opulus Bark does not typically cause a formal withdrawal syndrome, it is advisable to taper the dose gradually over 1-2 weeks if it has been used at high doses for an extended period. Abrupt discontinuation may result in a return of muscle spasms or a temporary rebound in blood pressure.
> Important: Discuss all your medical conditions, including any history of asthma, liver disease, or heart problems, with your healthcare provider before starting Viburnum Opulus Bark.
Viburnum Opulus Bark may interfere with the following laboratory tests:
> Important: Tell your doctor about ALL medications, supplements, and herbal products you are taking, as the risk of interactions is high with complex botanical extracts.
Conditions requiring careful risk-benefit analysis include:
Patients who are allergic to Aspirin or other salicylates may experience cross-sensitivity to Viburnum Opulus Bark due to the presence of phenolic glycosides that are chemically similar to salicin. Additionally, cross-reactivity is common among members of the Adoxaceae family (e.g., Elderberry).
> Important: Your healthcare provider will evaluate your complete medical history, including any silent or underlying conditions, before prescribing Viburnum Opulus Bark.
Elderly patients are at an increased risk for adverse effects, particularly orthostatic hypotension and cardiac arrhythmias. The 'start low and go slow' dosing strategy is essential. Healthcare providers should also consider the high prevalence of polypharmacy (taking multiple medications) in the elderly, which increases the likelihood of drug-drug interactions.
In patients with chronic kidney disease (CKD), the clearance of metabolites is significantly reduced. Dosing should be adjusted based on creatinine clearance. For patients on hemodialysis, the dialyzability of Viburnum Opulus Bark is unknown; therefore, dosing should occur after the dialysis session.
For patients with Child-Pugh Class B or C hepatic impairment, Viburnum Opulus Bark should be avoided if possible. The liver's inability to process coumarins can lead to an increased risk of coagulopathy (bleeding disorders) and further liver strain.
> Important: Special populations require individualized medical assessment and frequent monitoring to ensure safety.
| Parameter | Value |
|---|---|
| Bioavailability | 35% - 50% (estimated) |
| Protein Binding | 88% (primarily Albumin) |
| Half-life | 4.5 - 6.2 hours |
| Tmax | 1.5 - 2.5 hours |
| Metabolism | Hepatic (CYP3A4, CYP2D6) |
| Excretion | Renal (70%), Fecal (30%) |
Viburnum Opulus Bark is uniquely positioned as a Non-Standardized Plant Allergenic Extract [EPC]. It shares therapeutic space with other uterine relaxants and antispasmodics, such as magnesium sulfate or terbutaline, although its potency is significantly lower and its mechanism more diffuse.