Agrostis alba

Para qué se usa Agrostis alba

Cita de la sección «Indications and Usage» (indicaciones y uso) de la etiqueta aprobada por la FDA. Se muestra en inglés, tal como la publica la FDA.

Standardized grass pollen extract is indicated for use in the diagnosis of grass allergy in patients with a history of allergic symptoms that occur during grass pollination. Skin tests with standardized grass pollen extract should be done first by the puncture method using 10,000 BAU/mL extract. …

— Etiqueta de la FDA: Standardized Redtop Grass, Allermed Laboratories, Inc., vigente desde el 3 de junio de 2025. Leer la etiqueta completa en DailyMed →

Etiqueta citada: la de la presentación más común (injection, cutaneous), Standardized Redtop Grass, Allermed Laboratories, Inc.; abarca 8 productos del directorio NDC de la FDA. Las citas sobre efectos secundarios, interacciones, dosis y embarazo de abajo vienen de esta misma etiqueta.

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Advertencia en recuadro

La advertencia en recuadro («caja negra») es la advertencia más seria de la FDA en la etiqueta de un medicamento, para riesgos graves o mortales.

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Agrostis alba: lo que dice la advertencia en recuadro

Cita de la advertencia en recuadro (Boxed Warning) de la etiqueta aprobada por la FDA. Se muestra en inglés.

WARNINGS This product is intended for use by physicians who are experienced in the administration of allergenic extract or for use under the guidance of an allergy specialist. In previously untreated patients, the initial dose must be based on skin testing as described in the dosage and administration section of this insert.

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Patients being switched from alum-adsorbed or other types of precipitated extracts to this extract should be started as though they were coming under treatment for the first time. Patients should be instructed to recognize adverse reaction symptoms and cautioned to contact the physician's office if symptoms occur. As with all allergenic extracts, severe systemic reactions may occur and in certain individuals these reactions may be lifethreatening or cause death. Patients should be observed for at least 20 minutes following treatment. Emergency measures as well as personnel trained in their use should be immediately available in the event of a life-threatening reaction. Patients being switched to a new lot of extract from the same manufacturer should have the dose reduced 75 percent. For dose selection in switching patients from unstandardized to standardized extract, physicians may refer to Table 3 as a guide (see CLINICAL PHARMACOLOGY). Extracts labeled in BAU/mL are not directly interchangeable with any other grass pollen product. Patients receiving beta-blocking drugs may be refractive to the usual dose of epinephrine, in the event that epinephrine is required to control an adverse allergic reaction to this product. Caution must be exercised in testing and treating patients with steroid-dependent or labile asthma. This product should never be injected intravenously. See also WARNINGS and ADVERSE REACTIONS below. Serious adverse reactions to this product should be reported to VAERS at 1-800-822-7967 or www.vaers.hhs.gov.

— Etiqueta de la FDA: Standardized Redtop Grass, Allermed Laboratories, Inc., vigente desde el 3 de junio de 2025. Leer la etiqueta completa en DailyMed →

Efectos secundarios de Agrostis alba

Cita de la sección «Adverse Reactions» (reacciones adversas) de la etiqueta aprobada por la FDA. Se muestra en inglés. Avise a su médico de cualquier efecto secundario que le preocupe.

Local reactions consisting of erythema, itching, swelling, tenderness and sometimes pain may occur at the injection site. These reactions may appear within a few minutes to hours and persist for several days. Local cold applications and oral antihistamines may be effective treatment. For marked and prolonged local reactions, steroids may be helpful.

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Adverse systemic reactions usually occur within minutes and consist primarily of allergic symptoms such as generalized skin erythema, urticaria, pruritus, angioedema, rhinitis, wheezing, laryngeal edema and hypotension. Less commonly, nausea, emesis, abdominal cramps, diarrhea and uterine contractions may occur. Severe reactions may cause shock and loss of consciousness and fatalities have occurred (14). The treatment of systemic allergic reactions is somewhat dependent upon the symptom complex. Epinephrine hydrochloride 1:1,000 aqueous, in an adult dose of 0.3 - 0.5 mL (or 0.01 mL per kg. for children) administered subcutaneously in the opposite arm is the immediate treatment of choice. A tourniquet should be placed above the site of the injection if the injection was done on the extremities. Antihistamines may offer relief of recurrent urticaria, associated skin reactions and gastrointestinal symptoms. Persistent wheezing may necessitate intravenous aminophylline treatment in addition to inhaled bronchodilators. For profound shock and hypotension, intravenous fluids, vasopressors and oxygen also may be needed. Maintenance of an open airway is critical if upper airway obstruction is present. Corticosteroids may provide benefit if symptoms are prolonged or recurrent. Serious adverse reactions to this product should be reported to MEDWATCH, Food and Drug Administration, 5600 Fishers Lane, Rockville, MD 20852-9782. Telephone (800) 332-1088.

— Etiqueta de la FDA: Standardized Redtop Grass, Allermed Laboratories, Inc., vigente desde el 3 de junio de 2025. Leer la etiqueta completa en DailyMed →

Dosis de Agrostis alba

Cita de la sección «Dosage and Administration» (dosis y administración) de la etiqueta aprobada por la FDA. Se muestra en inglés. Su dosis es la que le receta su médico: no la cambie por su cuenta.

Parental drug products should be inspected visually for particulate matter and discoloration prior to adminitration, whenever solution and container permit. The product should be discarded if discoloration or particles are observed. DIAGNOSTIC USE: Standardized grass pollen extract may be used to diagnose sensitivity to grass pollen by performing skin tests on persons with a history of grass pollen allergy.

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Due to the risk of adverse reactions occuting in highly sensitive persons, it is mandatory to initially test all patients percutaneously using the scratch, prick or puncture method. If a properly performed percutaneous test is negative, an intradermal test may be used with caution. PUNCTURE TEST: The punture test should be performed first with 10,000 BAU/mL extract. Data for the puncture test using 10,000 BAU/mL extract are summarized in Table 1 under CLINICAL PHARMOCOLOGY. If the puncture test to 10,000 BAU/mL extract is negative, the test may be repeated using 100,000 BAU/mL extract. Appropriate positive and negative controls for skin test interpretation are necessary. Reactions are quarntified based on size of erythema and wheal in reaction to controls. INTRADERMAL TEST: An intradermal test should only be performed after a puncture test has been properly administered with a negative result. It is usually safe to initiate intradermal testing with a 1:1,000 v/v diluton of the extract to which a negative puncture test was observed. For example, if a puncture test is done with 10,000 BAU/mL extract and is negative, the intradermal test may be performed with 0.05 mL of 10 BAU/mL extract. The dose may be increased to 0.05 mL of 100 BAU/mL extract if the intradermal test with 10 BAU/mL extract is negative. THERAPEUTIC USE: The dosage of grass pollen extract administered by subcutaneous injection during immunotherapy is highly individualized and varies according to the patient. In patients who appear to be highly sensitive by history and skin test, the initial dose of the extract should be low, such as 0.1 mL of a 0.01 BAU/mL dilution. The amount of extract is increased at each injection, but not more than 50%-100% of the previous amount, and the next increment is governed by the response to the last injection. Local reactions that persist longer than 24 hours are undesirable and any systemic reaction is an indication that the dose should be reduced (at least 50%). The upper limits of dosage have not been established, but doses larger than 0.2 mL of concentrate containing 50% glycerol may be painful due to the glycerol in the extract. The potency of each standardized grass pollen in a final mixture should not exceed that obtained from using a 10,000 BAU/mL stock concentrate of each grass included in the mix. Concentrate containing 100,000 BAU/mL should be diluted to 10,000 BAU/mL extract before being used to prepare final mixtures, or alternatively, the volume of 100,000 BAU/mL extract added to the mixture should be reduced 10-fold. The optimum interval between doses of grass pollen extract has not been definitely established. However, as is customarily practiced, injections are given one or two times per week until the maintenance dose is reached.

— Etiqueta de la FDA: Standardized Redtop Grass, Allermed Laboratories, Inc., vigente desde el 3 de junio de 2025. Esto es solo una parte de la sección. Leer la etiqueta completa en DailyMed →

Cuándo no se debe usar Agrostis alba

Cita de la sección «Contraindications» (contraindicaciones) de la etiqueta aprobada por la FDA. Se muestra en inglés.

Immunotherapy should not be started in patients until a specific diagnosis of Type I allergy to grass pollen has been made from the patient's allergy history and from a positive skin test to grass pollen extract. Other contraindications include: EXTREME SENSITIVITY TO GRASS POLLEN: Patients who experience serious adverse reactions to grass pollen extract from skin testing and/or immunotherapy should not be given the product.

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AUTOIMMUNE DISEASE: Individuals with autoimmune disease may be at risk, due to the possibility of routine immunizations exacerbating symptoms of the underlying disease. MYOCARDIAL INFARCTION: Patients who have experienced a recent myocardial infarction may not be able to tolerate adverse reactions resulting from skin testing or immunotherapy. The benefit-torisk ratio must be carefully evaluated in these patients. CHILDREN WITH NEPHROTIC SYNDROME: Children with nephrotic syndrome require careful consideration and probably should not receive immunotherapy, due to a variety of seemingly unrelated events that may cause an exacerbation of nephrotic disease. BLEEDING DIATHESIS: Injections of grass pollen extract should not be administered in the presence of diseases characterized by a bleeding diathesis.

— Etiqueta de la FDA: Standardized Redtop Grass, Allermed Laboratories, Inc., vigente desde el 3 de junio de 2025. Leer la etiqueta completa en DailyMed →

Sobredosis de Agrostis alba

Cita de la sección «Overdosage» (sobredosis) de la etiqueta aprobada por la FDA. Se muestra en inglés. Si alguien pudo haber tomado demasiado, llame a Poison Help al 1-800-222-1222 (o al 911 en una emergencia).

A strong local reaction to the injection of extract may be treated with oral antihistamines and the local application of a cold compress. The dosage must be reduced and additional extract must not be given until all evidence of the reaction has disappeared. A systemic reaction following the injection of extract must be treated immediately with Epinephrine hydrochloride 1:1,000 aqueous and other measures as appropriate (see ADVERSE REACTIONS, paragraph 3 above).

— Etiqueta de la FDA: Standardized Redtop Grass, Allermed Laboratories, Inc., vigente desde el 3 de junio de 2025. Leer la etiqueta completa en DailyMed →

Presentaciones y vía de administración

Empresas que tienen este medicamento

Empresas en el directorio NDC de la FDA: la empresa que aparece en el envase (fabricante o distribuidor), con su número de productos con receta.

• Allermed Laboratories, Inc.1 producto

Historial de aprobación de la FDA

• BLA: Solicitud de licencia de productos biológicos (BLA): así se aprueba un medicamento biológico (hecho a partir de células vivas).

Escasez

La lista de escasez de la FDA no incluye estos productos.

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Retiros del mercado

No aparece ningún retiro vinculado a estos productos (por su código NDC) en los informes de la FDA.

Identificadores oficiales

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• Allermed Laboratories, Inc.Fabricante o distribuidor
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Fuentes

1. Etiqueta aprobada por la FDA en DailyMed (Biblioteca Nacional de Medicina) — Standardized Redtop Grass, Allermed Laboratories, Inc., vigente desde el 3 de junio de 2025; vía openFDA, datos de la FDA exportados el 30 de octubre de 2026, consultados el 31 de octubre de 2026
2. NDC Directory (openFDA) — Administración de Alimentos y Medicamentos de los EE. UU. (FDA), datos de la FDA exportados el 30 de octubre de 2026, consultados el 31 de octubre de 2026
3. Drugs@FDA (openFDA) — Administración de Alimentos y Medicamentos de los EE. UU. (FDA), datos de la FDA exportados el 30 de octubre de 2026, consultados el 31 de octubre de 2026
4. Drug recall enforcement reports (openFDA) — Administración de Alimentos y Medicamentos de los EE. UU. (FDA), datos de la FDA exportados el 27 de octubre de 2026, consultados el 31 de octubre de 2026
5. Drug shortages (openFDA) — Administración de Alimentos y Medicamentos de los EE. UU. (FDA), datos de la FDA exportados el 30 de octubre de 2026, consultados el 31 de octubre de 2026

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