Podophyllotoxin for anogenital warts

About podophyllotoxin

You will have been prescribed podophyllotoxin to treat anogenital warts. Anogenital warts are caused by the human papillomavirus (HPV) which can be passed on by close sexual contact. They are small lumps that develop on the genitals and around the back passage (anus). Podophyllotoxin is a topical preparation which is applied directly to the surface of the wart. It works by preventing the wart cells from dividing, which stops them from increasing in number. As the wart cells die, new healthy tissue grows in their place.

To make sure this is the right treatment for you, before you start using podophyllotoxin it is important that your doctor knows:

• If you are pregnant, trying for a baby or breastfeeding.

• If you have ever had an allergic reaction to podophyllotoxin.

• Before you start the treatment, read the manufacturer's printed information leaflet from inside the pack and any additional information you are given by your doctor. These will give you more information about how to use podophyllotoxin and will provide you with a full list of the side-effects which you may experience from using it.

• Follow the instructions carefully when you are applying the cream/solution and do not apply more than the recommended amount. You will be asked to use the preparation twice daily (in the morning and the evening) for three consecutive days. This is then followed by four days without treatment. Your doctor is likely to ask you to repeat the three-day treatment followed by four days without treatment until the warts have gone, or alternatively for a total of 4-5 weeks.

• Wash your hands and the area to be treated with mild soap and water before applying the podophyllotoxin. Make sure your skin is dry before you apply the cream/solution.

• If you are using the solution, you will be given applicators to use. The applicator has an end with a 'loop' which allows you to treat individual warts. Dip the applicator into the bottle so that the hole is filled with solution, and then touch the wart with the applicator to transfer the solution to it. Allow the solution to dry. Some applicators have a 'spatula' end which is suitable for applying the solution to small collections of warts. If you are using the cream, apply it using a fingertip but remember to wash your hands thoroughly after each application.

• Do not put podophyllotoxin on any area of skin which is raw or bleeding, and be careful to avoid getting it on the healthy areas of skin around the warts. It is only to be used on the outside (external) skin - do not apply it to the inside of the vagina, penis or back passage.

• If the cream or solution comes into contact with any healthy areas of skin by accident, wash the area with water to remove it. Podophyllotoxin can be very irritant if any splashes get into the eyes by accident.

• When you have anogenital warts you will usually be advised to have tests to check for other sexually transmitted infections. Your doctor or clinic will arrange these for you.

• Sexual contact is not generally recommended while you are treating anogenital warts. You should ideally wait until your warts have gone and your skin has healed. If you do have sex, use a condom, as the warts can be passed to your partner and also the podophyllotoxin can cause irritation for your partner. It is also commonly advised that you use condoms for a time even after the warts have gone.

• Never use wart treatments that are sold over-the-counter in pharmacies to treat your anogenital warts.

• Solutions of podophyllotoxin are flammable. Do not use the solutions near a flame, and remember to keep the container closed when not in use.

Along with their useful effects, most medicines can cause unwanted side-effects although not everyone experiences them. The table below contains some of the most common ones associated with podophyllotoxin. You will find a full list in the manufacturer's information leaflet supplied with the cream/solution. 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.

If you experience any other symptoms which you think may be due to podophyllotoxin, discuss them with your doctor or pharmacist.

• Keep all medicines out of the reach and sight of children.

• Store in a cool, dry place, away from direct heat and light.