TempoLife › Funciones › Herb and spice reference: evidence, dose and interactions › cranberry
Cranberry
Cranberry — lo que la monografía europea realmente respalda, para qué no es, la forma y cuánto tiempo está pensado usarse, efectos adversos y la 2 interacción medicamentosas documentada.
Esta es una página de referencia, no un diagnóstico ni una receta. Los productos herbales son farmacología real: tienen efectos, efectos adversos e interacciones. Diga a su médico y farmacéutico todo lo que toma, incluidos tés y suplementos, y nunca suspenda ni cambie un medicamento recetado por algo que lea aquí.
Qué es
Vaccinium macrocarpon Aiton — fruit and juice
Nombres locales en la región que sirve este sitio:jõhvikas (ET) · karpalo (FI) · клюква (RU).
Agrupado aquí bajo Joints, urinary tract and hormones. Posición regulatoria:Food and food supplement; not a monographed herbal medicine for infection in the EU.
Lo que respalda la evidencia
La indicación registrada:Reducing the chance of repeat urinary tract infections in some groups — not treating an infection that is already present.
Cranberry is the rare case where a large, independent systematic review moved the answer. A Cochrane review of cranberry products, updated in 2023, concluded that they reduce the risk of repeat symptomatic, culture-confirmed urinary tract infections in women with recurrent infections and in children, while finding no clear benefit in several other groups — older people in institutions, people with bladder-emptying problems, and pregnant women. The proposed mechanism is proanthocyanidin interference with bacterial adhesion to the bladder wall, and product strength varies enormously, which is why "cranberry" as a category performs less consistently than any single trial. A regional footnote: the Estonian jõhvikas and Finnish karpalo are the native small cranberry, Vaccinium oxycoccos; the fruit in supplements is almost always the larger American species.
B — Traditional use, trials point the same way Registered on long-standing use, and independent reviews of human trials point in the same direction without settling the question.
Para qué no es
Treating an infection. Burning, urgency, fever, flank pain or blood in the urine need to be seen, because an untreated urinary infection can reach the kidneys. Cranberry does not replace antibiotics and does not shorten an infection.
Forma, potencia y cuánto tiempo
Capsules and tablets standardised to proanthocyanidin content, unsweetened juice, and sweetened juice drinks, which are mostly sugar and water.
Duración.Prevention is by definition long-term, which makes the sugar content of juice products a genuine consideration.
Ninguna cifra en gramos aparece en esta página a propósito. La parte de la planta, el disolvente de extracción y la relación droga-extracto definen juntos una preparación, y un número tomado de una no describe otra. El razonamiento está en el hub; la cantidad que le aplica es la impresa en el envase que sostiene, y un farmacéutico la leerá con usted.
Efectos adversos
Stomach upset and diarrhoea at high intakes. Cranberry is relatively high in oxalate, which is a consideration for people who form calcium-oxalate kidney stones.
Quién debería evitarlo
Fine as a food for most people. Anyone with recurrent infections should still have the reason for them looked at rather than only prevented.
Interacciones con medicamentos
| Medicamento o sustancia | Qué se describe |
|---|---|
| Anticoagulants and antiplatelets (warfarin, DOACs, aspirin, clopidogrel) | UK regulators issued a caution in the early 2000s after reports of raised INR in warfarin patients drinking cranberry juice. Later controlled studies have been largely reassuring, but the standing advice has not changed: keep intake steady and tell whoever monitors your INR. |
| Diabetes medicines and insulin | Sweetened cranberry juice drinks carry a substantial sugar load; unsweetened juice and capsules do not. |
La vista inversa — empezar por el medicamento en vez de la planta — está en la referencia de interacciones de medicamentos, alimentos y alcohol, y resumido para cada hierba de este sitio.
Como alimento
Este también está en la cocina, así que conviene tener las cifras nutricionales junto a la farmacología: véase la página de datos de alimentos para calorías y nutrientes por 100 g y por ración. Las cantidades culinarias y las preparaciones medicinales son exposiciones distintas, y la diferencia suele ser toda la historia de seguridad.
Fuentes:NIH National Center for Complementary and Integrative Health — herb fact sheets· comprobado2026-09-06
Preguntas frecuentes
¿Para qué se usa cranberry?
Reducing the chance of repeat urinary tract infections in some groups — not treating an infection that is already present. Cranberry is the rare case where a large, independent systematic review moved the answer. A Cochrane review of cranberry products, updated in 2023, concluded that they reduce the risk of repeat symptomatic, culture-confirmed urinary tract infections in women with recurrent infections and in children, while finding no clear benefit in several other groups — older people in institutions, people with bladder-emptying problems, and pregnant women. The proposed mechanism is proanthocyanidin interference with bacterial adhesion to the bladder wall, and product strength varies enormously, which is why "cranberry" as a category performs less consistently than any single trial. A regional footnote: the Estonian jõhvikas and Finnish karpalo are the native small cranberry, Vaccinium oxycoccos; the fruit in supplements is almost always the larger American species.
¿Funciona cranberry?
Valorado aquí B: Registered on long-standing use, and independent reviews of human trials point in the same direction without settling the question. Treating an infection. Burning, urgency, fever, flank pain or blood in the urine need to be seen, because an untreated urinary infection can reach the kidneys. Cranberry does not replace antibiotics and does not shorten an infection.
¿Cuánto cranberry debo tomar?
Esta referencia no imprime cifras en gramos, porque no se transfieren entre preparaciones de distinta fuerza de extracto. Lo que se puede decir con honestidad es la forma y la duración:Capsules and tablets standardised to proanthocyanidin content, unsweetened juice, and sweetened juice drinks, which are mostly sugar and water. Prevention is by definition long-term, which makes the sugar content of juice products a genuine consideration.
¿Cuáles son los efectos adversos de cranberry?
Stomach upset and diarrhoea at high intakes. Cranberry is relatively high in oxalate, which is a consideration for people who form calcium-oxalate kidney stones.
¿Interactúa cranberry con medicamentos?
Sí — documentado paraAnticoagulants, warfarin, Diabetes medicines. Cada una se describe en esta página, con un enlace a la referencia del lado medicamento donde exista.
Otros enjoints, urinary tract and hormones
Nettle
Leaf: to increase the amount of urine and so flush the urinary tract in minor complaints, and for minor joint pain. Root: lower urinary tract symptoms related to benign enlargement of the prostate.
Saw palmetto
Relief of lower urinary tract symptoms related to benign prostatic hyperplasia, after a doctor has excluded serious conditions.
Black cohosh
Relief of menopausal complaints such as hot flushes and profuse sweating.
Devil's claw
Relief of minor joint pain, and of mild digestive complaints such as bloating and loss of appetite.
Feverfew
Prophylaxis of migraine headaches, after serious conditions have been excluded by a doctor.
Guardar toda la lista en un sitio
TempoLife registra suplementos junto a comida, sueño y cómo se sintió de verdad — así la respuesta a «¿qué está tomando?» es una pantalla, no una conjetura.