Ir al contenido principal

Inyección y gel de testosterona

Nebido, Testogel, Tostran

Testosterone is given as replacement therapy when natural testosterone levels fall too low.

If you experience frequent or persistent erections as a result of the treatment, please let your doctor know.

If you are using a gel, testosterone can be transferred to other people through close skin contact. This may cause side-effects in the other person. To prevent this from happening, cover the treated area with clothes or take a shower before you have close contact.

De un vistazo

  • Testosterone is a male sex hormone used to treat low testosterone levels in men.

  • It is available as an injection or a gel.

  • Before starting treatment, tell your doctor about any existing health conditions or other medicines you are taking.

  • If using the gel, it can transfer to others through close skin contact, so cover the treated area.

  • Frequent or persistent erections are a side-effect that needs medical attention.

  • Common side-effects include headaches, mood changes, skin irritation, and changes in blood test results.

About testosterone

Tipo de medicamento

An androgen (a male sex hormone)

Usado para

Androgen deficiency in men; delayed puberty in men

También llamado

Nebido®, Roxadin®, Sustanon 250®, Testavan®, Testogel®, Tostran®

Disponible como

Injection and gel

Testosterone is produced by the testicles. It is known as an androgen - a male sex hormone. Testosterone is essential for the normal growth and development of the male sex organs and sexual characteristics. Where a man's natural testosterone levels are too low (a condition called male hypogonadism), testosterone is prescribed as replacement therapy. It can be prescribed as a gel which is applied to the skin or as an injection.

Before taking or using testosterone

Some medicines are not suitable for people with certain conditions, and sometimes a medicine can only be used if extra care is taken. For these reasons, before you start taking/using testosterone it is important that your doctor knows:

  • Si tienes algún problema con el funcionamiento de tu hígado, o si tienes algún problema con el funcionamiento de tus riñones.

  • If you have a heart condition or high blood pressure.

  • If you have a condition called thrombophilia which affects the way your blood clots, or if you are at higher risk of blood clots for any other reason.

  • If you have any of the following conditions: epilepsy, migraine, or diabetes.

  • If you have a breathing problem while you are asleep called sleep apnoea.

  • Si tienes cáncer.

  • Si está tomando o usando otros medicamentos. Esto incluye cualquier medicamento que esté tomando y que esté disponible para comprar sin receta, así como medicamentos herbales y complementarios.

  • Si alguna vez has tenido una reacción alérgica a un medicamento.

How to take or use testosterone

  • Before you start the treatment, read the manufacturer's printed information leaflet from inside the pack. It will give you more information about the specific brand of testosterone you have been prescribed, and it will also provide you with a full list of the side-effects which you could experience.

  • Take or use testosterone exactly as your doctor tells you to. Your dose will be on the label of the pack to remind you. The doses given below are intended to be a guide only.

  • If you are having injections: these are given by your doctor or nurse, usually on a regular basis, so make sure you know when your next treatment is due.

  • If you are using Testavan®, Testim®, Testogel® or Tostran® gels: apply the gel at about the same time each day, to a clean, dry area of your skin. The manufacturer's information leaflet will explain which areas of your skin the gel can be applied to - please read this carefully before you use the gel. Your doctor or pharmacist will explain to you how much gel you should use each time.

  • If you miss a dose, read the manufacturer's information leaflet which comes with your treatment for advice on what to do.

Obteniendo el máximo de tu tratamiento

  • Please try to keep any routine appointments with your doctor. This is so your doctor can check on your progress.

  • If you experience frequent or persistent erections, you must let your doctor know about this. Your dose may need to be adjusted or your treatment stopped for a while to avoid any injury.

  • If you are using a gel, testosterone can be transferred to other people through close skin contact. This may cause side-effects in the other person. To prevent this from happening, cover the treated area with clothes or take a shower before you have close contact. It is very important that pregnant women avoid contact with any areas of your skin which have been treated with testosterone gel.

  • Please be aware that testosterone preparations can interfere with anti-doping testing used in competitive sports.

Can testosterone cause problems?

Along with their useful effects, most medicines can cause unwanted side-effects although not everyone experiences them. The table below contains the most common ones associated with testosterone. You will find a full list in the manufacturer's information leaflet supplied with your medicine. The unwanted effects often improve as your body adjusts to the new medicine, but speak with your doctor or pharmacist if any of the following continue or become troublesome.

Common testosterone side-effects

¿Qué puedo hacer si experimento esto?

Headache and other aches and pains

Pídale a su farmacéutico que le recomiende un analgésico adecuado

Mood changes, feeling dizzy

Hable con su médico si es problemático

Sensación de malestar (náuseas), dolor de barriga (abdominal)

Mantente en alimentos simples - evita comidas ricas o picantes

Skin rash and irritation, acne, swollen hands or feet, increased blood pressure, increased breast size, breast pain, increased body hair, prostate problems, increased weight, baldness

If any become troublesome, let your doctor know

Cambios en algunos resultados de análisis de sangre

Su médico supervisará estos

Si experimenta cualquier otro síntoma que crea que puede deberse al medicamento, por favor hable con su médico o farmacéutico para obtener más consejos.

How to store testosterone

  • Mantenga todos los medicamentos fuera del alcance y la vista de los niños.

  • Almacenar en un lugar fresco y seco, lejos del calor y la luz directos.

Información importante sobre todos los medicamentos

Información importante sobre todos los medicamentos

Never take more than the prescribed dose. If you suspect that you or someone else might have taken an overdose of this medicine go to the accident and emergency department of your local hospital at once. Take the container with you, even if it is empty.

If you are having an operation or dental treatment tell the person carrying out the treatment which medicines you are taking.

Si compras algún medicamento, consulta con un farmacéutico que sea seguro tomarlo junto con tus otros medicamentos.

Este medicamento es para ti. Nunca lo des a otras personas, incluso si su condición parece ser la misma que la tuya.

No guardes medicamentos caducados o no deseados. Llévalos a tu farmacia local, que se encargará de desecharlos por ti.

Si tienes alguna pregunta sobre este medicamento, consulta a tu farmacéutico.

MHRA - Reporte de reacciones adversas

Informe los efectos secundarios sospechosos de medicamentos, vacunas, cigarrillos electrónicos, incidentes con dispositivos médicos, productos defectuosos o falsificados (falsos) a la Agencia Reguladora de Medicamentos y Productos Sanitarios para garantizar un uso seguro y efectivo.

verificador de síntomas

¿Inseguro sobre mezclar medicamentos?

Verifica posibles interacciones entre medicamentos, suplementos y alimentos antes de tomarlos juntos.

Preguntas frecuentes

What is male hypogonadism?

Male hypogonadism is a condition where a man's natural testosterone levels are too low. Testosterone is prescribed as a replacement therapy for this condition.

What should I do if I forget to apply my testosterone gel?

If you miss a dose of your testosterone gel, you should refer to the manufacturer's information leaflet that came with your treatment. This leaflet will provide advice on what steps to take for a missed dose.

Can I use over-the-counter painkillers with testosterone?

For common side-effects like headaches and other aches and pains, you can ask your pharmacist to recommend a suitable painkiller. It's always best to check with a pharmacist if you buy any medicines to ensure they are safe to take with your testosterone or any other medicines you are using.

What if I experience tummy pain or feel sick after starting testosterone?

If you experience feeling sick (nausea) or tummy (abdominal) pain as a side-effect, you should stick to simple foods and avoid rich or spicy meals. If these symptoms continue or become troublesome, speak with your doctor or pharmacist for further advice.

Why do I need regular appointments with my doctor while on testosterone?

Routine appointments with your doctor are important so they can monitor your progress with the testosterone treatment. This allows them to check how you are responding and make any necessary adjustments to your treatment plan.

What should I do with expired or unused testosterone?

You should not keep out-of-date or unwanted medicines. Instead, take them to your local pharmacy, which will properly dispose of them for you.

Lecturas adicionales y referencias

Sobre el autorVer biografía completa

Imagen del autor

Michael Stewart, MRPharmS

Gerente de Revisión de Folletos de Medicamentos – Contratista, Farmacéutico

BPharm (Hons), MRPharmS

Michael es un farmacéutico comunitario que ejerce en Midlands y South Yorkshire con más de 20 años de experiencia asesorando sobre medicamentos y condiciones médicas. Tiene una sólida formación en capacitación en atención médica, habiendo producido e impartido cursos de formación para equipos de farmacia y personal de entornos de atención residencial, incluidas enfermeras. También ha contribuido a juntas asesoras de farmacia para la gestión de condiciones de baja gravedad en la comunidad.

Acerca del revisor

Imagen del autor

Sid Dajani

Sultan Dajani se graduó en la Escuela de Farmacia de Londres en 1994 y se convirtió en el miembro más joven elegido para el consejo de la Sociedad Real de Farmacia desde su fundación en 1842.

Historial del artículo

La información en esta página está escrita y revisada por pares por clínicos calificados.

  • Próxima revisión: 22 de febrero de 2028
  • 22 Feb 2025 | Última versión

    Última actualización por

    Michael Stewart, MRPharmS

    Revisado por pares por

    Sid Dajani
verificador de elegibilidad para la gripe

Pregunta, comparte, conecta.

Navega por discusiones, haz preguntas y comparte experiencias en cientos de temas de salud.

Suscríbete al boletín de Patient

Tu dosis semanal de consejos de salud claros y confiables, escritos para ayudarte a sentirte informado, seguro y en control.

Por favor, introduce una dirección de correo electrónico válida

Al suscribirte aceptas nuestros Política de Privacidad. Puedes darte de baja en cualquier momento. Nunca vendemos tus datos.