BMJ Group Medical Reference
Podophyllotoxin is a cream or solution that you put on your genital warts. Its brand names are Condyline and Warticon. It is also the most active of the ingredients found in another treatment called podophyllin.
Eight good studies ( randomised controlled trials) found that using podophyllotoxin for four months helped to get rid of genital warts.         But warts came back in up to one-third of people. 
Continuing to use podophyllotoxin after it has got rid of your genital warts probably won't stop them coming back. 
Six studies have also compared podophyllotoxin with podophyllin.       Most of these studies found that the two treatments worked equally well for clearing up warts and stopping them coming back.     
Podophyllotoxin can irritate and burn your skin, causing pain and itching.  It can occasionally make the foreskin and head of the penis inflamed in men who aren't circumcised.  
You should not use podophyllotoxin if you're pregnant.
An active ingredient is the substance in a medicine or supplement that causes changes to take place in your body.
randomised controlled trials
Randomised controlled trials are medical studies designed to test whether a treatment works. Patients are split into groups. One group is given the treatment being tested (for example, an antidepressant drug) while another group (called the comparison or control group) is given an alternative treatment. This could be a different type of drug or a dummy treatment (a placebo). Researchers then compare the effects of the different treatments.
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