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Sinecatechins, Topical sih-neh-KAT-eh-kins

What are other names for this medicine?

Type of medicine: anogenital wart remover

Generic and brand names: sinecatechins, topical; Veregen

What is this medicine used for?

This medicine is put on the skin outside the rectum or genitals to treat warts.

What should my healthcare provider know before I take this medicine?

Before taking this medicine, tell your healthcare provider if you have ever had:

  • an allergic reaction to any medicine
  • a weakened immune system from diseases such as HIV/AIDS or cancer, or from taking steroid medicines or medicines to prevent organ transplant rejection
  • human papilloma virus (HPV)

Females of childbearing age: Talk with your healthcare provider if you are pregnant or plan to become pregnant. It is not known whether this medicine will harm an unborn baby. Do not breast-feed while taking this medicine without your healthcare provider's approval.

How do I use it?

Check the label on the medicine for directions about your specific dose. Follow your provider's instructions for using this medicine. Do not use more or use it more often than prescribed. Do not use this medicine for longer than 16 weeks unless your healthcare provider approves.

This medicine should only be used on the warts outside the rectum or genitals. Do not use it to treat warts that are inside the rectum or vagina.

Wash your hands before and after using this medicine. Be careful to put the medicine only on the warts and not on the skin around the warts. Allow the skin where you put the medicine to dry before it comes in contact with normal, untreated skin. Do not put a bandage or tight dressing on the treated area.

Do not use this medicine on open wounds. Do not use this medicine to treat warts on any other part of the body. Keep this medicine away from your eyes. If you get the medicine in your eyes, flush with plenty of water and contact your healthcare provider.

What if I miss a dose?

If you miss a dose, use it as soon as you remember unless it is almost time for the next scheduled dose. In that case, skip the missed dose and use the next one as directed. Do not use double doses. If you are not sure of what to do if you miss a dose, or if you miss more than one dose, contact your healthcare provider.

What if I overdose?

An acute overdose of this medicine is not likely to cause life-threatening symptoms. If you think that you or anyone else may have taken too much of this medicine, call the poison control center at 800-222-1222.

What should I watch out for?

While some irritation is normal with the use of this medicine, report any severe irritation to your healthcare provider right away.

Do not have sexual contact while this medicine is on the skin.

Do not give this medicine to others who may seem to have a similar problem.

If your condition does not improve in 4 weeks, or if it gets worse, contact your healthcare provider.

This medicine may stain clothing and bedding.

Females: if you use tampons, insert the tampon before applying the medicine. If you need to change the tampon while the medicine is on the skin, do not get the medicine inside the vagina.

This medicine does not cure the warts and new warts may develop during or after using this medicine.

While you are using this medicine, avoid exposing the treated area to the sunlight, tanning beds, or sunlamps.

If you need emergency care, surgery, or dental work, tell the healthcare provider or dentist you are using this medicine.

What are the possible side effects?

Along with its needed effects, your medicine may cause some unwanted side effects. Some side effects may be very serious. Some side effects may go away as your body adjusts to the medicine. Tell your healthcare provider if you have any side effects that continue or get worse.

Life-threatening (Report these to your healthcare provider right away). If you cannot reach your healthcare provider right away, get emergency medical care or call 911 for help): Allergic reaction (hives; itching; rash; trouble breathing; chest pain or tightness in your chest; swelling of your lips, tongue, and throat).

Serious (report these to your healthcare provider right away): Unusual bruising or bleeding; severe skin irritation (severe rash, burning, stinging, tingling, swelling or itching); severe pain, sores or blisters.

Other: Mild to moderate skin irritation (redness, rash, flaking, itching, burning, swelling, scabbing at the spot where the medicine is applied).

What products might interact with this medicine?

No significant drug interactions have been reported. However, do not use other medicines or cosmetic products on the affected skin unless your healthcare provider approves.

If you are not sure if your medicines might interact, ask your pharmacist or healthcare provider. Keep a list of all your medicines with you. List all the prescription medicines, nonprescription medicines, supplements, natural remedies, and vitamins that you take. Be sure that you tell all healthcare providers who treat you about all the products you are taking.

How should I store this medicine?

Store this medicine in the refrigerator but do not let the medicine freeze. Keep the container tightly closed. Protect it from heat, high humidity, and bright light.


This advisory includes selected information only and may not include all side effects of this medicine or interactions with other medicines. Ask your healthcare provider or pharmacist for more information or if you have any questions.

Ask your pharmacist for the best way to dispose of outdated medicine or medicine you have not used. Do not throw medicine in the trash.

Keep all medicines out of the reach of children.

Do not share medicines with other people.


Developed by RelayHealth.
Medication Advisor 2012.1 published by RelayHealth.
Last modified: 2010-03-26
Last reviewed: 2012-01-30
This content is reviewed periodically and is subject to change as new health information becomes available. The information is intended to inform and educate and is not a replacement for medical evaluation, advice, diagnosis or treatment by a healthcare professional.
© 2012 RelayHealth and/or its affiliates. All rights reserved.
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