Loading...
Loading...
Medical Disclaimer: This information is for educational purposes only and is not a substitute for professional medical advice.
Renes (kidney) Pentas 7x, 11x, 18x, 30x
Brand Name
Renes (kidney) Pentas
Generic Name
Renes (kidney) Pentas 7x, 11x, 18x, 30x
Active Ingredient
Beef KidneyCategory
Non-Standardized Food Allergenic Extract [EPC]
Variants
1
Different strengths and dosage forms
| Strength | Form | Route | NDC |
|---|---|---|---|
| 7 [hp_X]/30mL | LIQUID | ORAL | 53645-2390 |
Detailed information about Renes (kidney) Pentas
This page is for informational purposes only and does not replace medical advice. Before using any prescription or over-the-counter medication for Renes (kidney) Pentas, you must consult a qualified healthcare professional.
Beef Kidney is a non-standardized food allergenic extract primarily utilized in diagnostic medicine for the identification of bovine-specific IgE-mediated allergies. It also functions within complex pharmacologic classes including nitrogen binding agents and various vitamin-based compounds.
For the prick or scratch test, the standard concentration is typically a 1:10 or 1:20 w/v (weight-to-volume) solution. A single drop is applied to the skin (usually the forearm or back), and the skin is pricked through the drop. The results are read after 15 to 20 minutes.
If percutaneous tests are negative but a strong clinical suspicion of allergy remains, a healthcare provider may perform intradermal testing. The concentration is significantly more dilute, often 1:100 or 1:1000 w/v. A volume of 0.02 mL to 0.05 mL is injected into the dermis to create a small bleb (bubble).
When used as a desiccated organ supplement, typical adult dosages range from 500 mg to 3,000 mg per day, often divided into multiple doses. However, these dosages are not standardized by the FDA for therapeutic efficacy.
Beef Kidney allergenic extracts are used in children for allergy diagnosis. The procedure is identical to adult testing, though the number of simultaneous tests may be limited to minimize discomfort. There is no established 'safe' dose for pediatric dietary supplementation of desiccated beef kidney; parents should consult a pediatrician before use.
No specific dosage adjustment is required for skin testing in patients with renal impairment. However, if using beef kidney as a nitrogen-binding agent or potassium binder, extreme caution is required as these patients already have compromised electrolyte and nitrogenous waste clearance.
No adjustments are necessary for diagnostic testing. For systemic use, patients with hepatic impairment should be monitored for Vitamin A toxicity (hypervitaminosis A), as the liver is the primary storage site for fat-soluble vitamins.
Elderly patients may have reduced skin reactivity (reduced wheal and flare response). Clinicians may need to interpret 'negative' results with caution and consider the patient's overall histamine response using a positive control (histamine phosphate).
Liquid extracts must be stored in a refrigerator at 2°C to 8°C (36°F to 46°F). Do not freeze. Keep the vial tightly closed to prevent evaporation and concentration changes.
In the context of diagnostic testing, a missed appointment simply delays diagnosis. For those taking desiccated supplements, a missed dose should be taken as soon as remembered, unless it is nearly time for the next dose. Do not double the dose to 'catch up.'
An 'overdose' in skin testing occurs if too much extract is administered or if it is injected too deeply. This significantly increases the risk of anaphylaxis. Symptoms include:
In the event of a systemic reaction, the immediate administration of epinephrine (1:1000) is required. Oxygen, intravenous fluids, and antihistamines may also be administered by the clinical team.
> Important: Follow your healthcare provider's dosing instructions. Do not adjust your dose or attempt self-testing without medical guidance.
When used for skin testing, the most common side effects are localized to the site of administration. These are often expected outcomes of the test rather than 'adverse' events in the traditional sense.
> Warning: Stop using Beef Kidney products and call your doctor immediately if you experience any of these signs of a systemic allergic reaction (anaphylaxis).
For diagnostic extracts, there are no known long-term side effects from a single exposure. For chronic consumption of beef kidney as a supplement, the primary long-term risk is iron overload (hemosiderosis) or vitamin toxicity, particularly in individuals with genetic predispositions like hemochromatosis. Additionally, because kidney tissue is high in purines, long-term high intake may exacerbate gout by increasing uric acid levels.
While non-standardized food extracts like Beef Kidney may not always carry a formal FDA 'Black Box' warning in the same way as high-risk pharmaceuticals, they carry a Class Warning for Allergenic Extracts. This warning states:
WARNING: SYSTEMIC REACTIONS: This product can cause severe systemic reactions, including anaphylactic shock and death. It should only be administered by physicians who are exceptionally experienced in the treatment of systemic reactions and have the necessary equipment (epinephrine, oxygen, etc.) immediately available. Patients should be observed for at least 30 minutes after any skin test or injection.
Report any unusual symptoms to your healthcare provider immediately. Even a mild systemic reaction can be a precursor to a more severe event.
Beef Kidney extract is a biological product that carries an inherent risk of inducing severe allergic reactions. It is not a standard medication for self-administration but a diagnostic tool. Patients with a history of severe asthma or those currently experiencing an asthma exacerbation are at a significantly higher risk for life-threatening reactions during allergy testing.
No specific FDA black box warning exists uniquely for Beef Kidney, but it falls under the general mandate for all allergenic extracts. The mandate requires that these products be used only by clinicians prepared to manage anaphylaxis. The risk of a systemic reaction is higher with intradermal testing than with percutaneous prick testing.
Beef Kidney extract does not typically affect the central nervous system. However, if a patient experiences a vasovagal reaction (fainting) or a systemic allergic reaction, they should not drive until they are fully recovered and cleared by a medical professional. If antihistamines are given to treat a local reaction, they may cause drowsiness.
Alcohol consumption should be avoided on the day of allergy testing. Alcohol can increase peripheral vasodilation, which might theoretically increase the rate of allergen absorption or exacerbate a flushing reaction, making the skin test harder to interpret.
There are no tapering requirements for Beef Kidney extract as it is not a chronic medication. However, if a patient is using it as a supplement for its Nitrogen Binding Agent [EPC] or Potassium Binder [EPC] properties, sudden discontinuation could lead to a rebound increase in serum ammonia or potassium levels if the patient has underlying renal or metabolic disease.
> Important: Discuss all your medical conditions, especially respiratory and cardiac issues, with your healthcare provider before starting Beef Kidney testing.
For diagnostic testing, the standard management strategy is the 'washout period.' Patients are instructed to stop all interfering medications for a period of 3 to 7 days. If a patient cannot safely stop their beta-blocker or ACE inhibitor, the clinician will typically opt for serum IgE testing to avoid the risk of a non-treatable systemic reaction.
> Important: Tell your doctor about ALL medications, supplements, and herbal products you are taking, especially those for blood pressure or allergies.
Patients who are allergic to Beef Kidney extract may also show cross-reactivity to:
> Important: Your healthcare provider will evaluate your complete medical history, including any history of asthma or previous allergic reactions, before prescribing or administering Beef Kidney extract.
FDA Pregnancy Category C. There are no adequate and well-controlled studies of Beef Kidney extract in pregnant women. Animal reproduction studies have not been conducted. The primary risk during pregnancy is not the extract itself, but the potential for a systemic allergic reaction (anaphylaxis). Anaphylaxis in a pregnant woman can lead to 'fetal distress' due to a sudden drop in maternal blood pressure and oxygenation. Therefore, skin testing with Beef Kidney should only be performed during pregnancy if the diagnostic information is essential for the mother's immediate health and cannot be delayed.
It is unknown whether the protein components of Beef Kidney extract are excreted in human milk. However, since the amount used in diagnostic testing is minuscule and largely remains localized, it is considered unlikely to affect a nursing infant. Healthcare providers should still exercise caution and monitor the infant for any signs of hives or GI distress if the mother undergoes extensive testing.
Beef Kidney extract is used in children as young as infants for the diagnosis of food allergies. The main concern in the pediatric population is the psychological distress of the procedure and the risk of systemic reactions in children with co-morbid asthma. There is no evidence that skin testing interferes with growth or development. Desiccated beef kidney supplements are not recommended for children due to the high concentration of fat-soluble vitamins (A and D), which can easily reach toxic levels in small bodies.
In patients over 65, skin reactivity decreases significantly. The skin becomes thinner and less vascular, which can lead to smaller wheal and flare diameters. This increased risk of false-negative results may require the clinician to use higher concentrations of the extract or rely more heavily on serum IgE testing. Additionally, geriatric patients are more likely to be on medications like beta-blockers or have underlying cardiovascular disease, which increases the danger of a systemic reaction.
For diagnostic skin testing, no dose adjustment is needed. However, if the components of beef kidney are being considered for their Potassium Binder [EPC] or Nitrogen Binding Agent [EPC] properties, patients with a GFR below 30 mL/min must be monitored with extreme care. While these properties are intended to help, the high protein and phosphorus content of natural kidney tissue can actually worsen uremia (buildup of toxins in the blood) in advanced kidney disease.
Patients with significant liver disease (Child-Pugh Class B or C) may have altered protein synthesis and could theoretically have atypical immune responses. More importantly, they are at higher risk for Vitamin A toxicity from organ meat extracts, as the liver cannot properly process or store the vitamin.
> Important: Special populations require individualized medical assessment. Always inform your specialist if you are pregnant, nursing, or have chronic kidney or liver issues.
Beef Kidney functions through several distinct molecular pathways:
| Parameter | Value |
|---|---|
| Bioavailability | <1% (Skin Test); >90% (Oral Vitamins) |
| Protein Binding | N/A (Extract is protein-based) |
| Half-life (Local) | 15–30 minutes |
| Tmax (Skin Reaction) | 0.33 hours |
| Metabolism | Proteolysis at injection site |
| Excretion | Renal (metabolites) |
Beef Kidney is categorized as a Non-Standardized Food Allergenic Extract [EPC]. It shares this class with other meat extracts like pork or chicken. It is also functionally grouped with Nitrogen Binding Agents and Vitamin D Compounds due to its rich biological composition.
Common questions about Renes (kidney) Pentas
In a medical context, Beef Kidney is primarily used as an allergenic extract for diagnostic skin testing to identify beef allergies. Healthcare providers apply a small amount of the extract to the skin to see if a 'wheal and flare' allergic reaction occurs. Beyond diagnosis, it is sometimes used in research for its nitrogen-binding and potassium-exchanging properties. Some people also use desiccated (dried) beef kidney as a nutritional supplement to provide high levels of Vitamin B12 and the enzyme diamine oxidase. However, its only FDA-regulated pharmaceutical use is for allergy diagnosis.
The most common side effects of Beef Kidney extract are localized to the area where the skin test was performed. These include intense itching, redness (flare), and a raised bump (wheal) that looks like a mosquito bite. These reactions are usually expected and indicate a positive test result for an allergy. Some patients may also experience mild soreness or a delayed swelling at the site several hours later. If taken as a supplement, common side effects might include a 'beefy' aftertaste or mild stomach upset. Serious systemic reactions are rare but require immediate medical attention.
It is generally advised to avoid alcohol on the day of a Beef Kidney allergy skin test. Alcohol can cause your blood vessels to dilate (expand), which might increase the redness at the test site and make the results difficult for your doctor to interpret. Furthermore, alcohol can sometimes worsen the symptoms of an allergic reaction if one occurs. If you are taking beef kidney as a dietary supplement, there is no known direct interaction with alcohol, but you should always consult your doctor. Safety is the priority during diagnostic procedures.
Beef Kidney skin testing is generally avoided during pregnancy unless it is absolutely necessary. The extract itself is not known to be a toxin or cause birth defects, but the risk of a systemic allergic reaction (anaphylaxis) poses a danger to the fetus. Anaphylaxis can cause a sudden drop in the mother's blood pressure, which reduces the oxygen supply to the baby. Most allergists will wait until after the baby is born to perform elective allergy testing. If you are pregnant, discuss the risks and benefits of any diagnostic testing with your obstetrician and allergist.
When used for allergy testing, Beef Kidney extract works very quickly. A localized skin reaction typically begins to appear within 5 to 10 minutes of the prick or injection. The reaction usually reaches its maximum size (peak) at about 15 to 20 minutes, which is when the doctor will measure the result. If you are taking it as a supplement for its nutrient content, it may take several weeks of consistent use to see changes in your vitamin levels or metabolic markers. The diagnostic 'work' of the extract is completed within an hour of administration.
Yes, you can stop using Beef Kidney extract or supplements suddenly without experiencing withdrawal symptoms in the traditional sense. Since the diagnostic extract is usually a one-time or short-term application, there is no need for tapering. However, if you were using it as a supplement to manage specific conditions like histamine intolerance or nutrient deficiencies, your symptoms might return once you stop. Always inform your healthcare provider before stopping any supplement regimen, especially if it was recommended for a specific health goal. There are no known 'rebound' effects for the allergenic extract.
If you miss an appointment for a Beef Kidney skin test, simply contact your allergist to reschedule; there is no medical danger in delaying the test. If you are taking desiccated beef kidney as a daily supplement and miss a dose, take it as soon as you remember. If it is almost time for your next scheduled dose, skip the missed one and continue with your regular schedule. Do not take two doses at once to make up for the one you missed, as this could increase the risk of stomach upset or vitamin overexposure. Consistency is key for supplements, but safety is more important.
There is no clinical evidence that Beef Kidney extract used in allergy testing causes weight gain. The amount of extract used is far too small to have any caloric impact. Similarly, desiccated beef kidney supplements are very low in calories and are unlikely to contribute to weight gain when taken at recommended dosages. In fact, because it is high in B vitamins which support energy metabolism, some people use it as part of a weight management plan, though it is not a weight-loss drug. Any significant weight change while taking a new supplement should be discussed with a doctor.
Beef Kidney extract can interact with several important medications, especially during allergy testing. You must tell your doctor if you are taking beta-blockers or ACE inhibitors for blood pressure, as these can make allergic reactions more dangerous. Antihistamines like Benadryl, Claritin, or Zyrtec must be stopped several days before testing because they will block the skin reaction and lead to a false-negative result. Other medications like antidepressants or steroids can also interfere with the test. Always provide a full list of your medications to your healthcare provider before undergoing any diagnostic procedure.
Beef Kidney is a biological product, so it does not have 'generics' in the same way that chemical drugs like aspirin do. However, because it is a non-standardized extract, different manufacturers may produce their own versions of 'Bovine Kidney Extract.' These products are not necessarily interchangeable because their concentrations and protein profiles may vary. In the supplement market, many different brands offer desiccated beef kidney, but these are not regulated for bioequivalence by the FDA. Always use the specific brand or extract recommended by your specialist to ensure consistent results.
Other drugs with the same active ingredient (Beef Kidney)