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Veregen® (sinecatechins) Ointment, 15% is a botanical drug product for topical use. The drug substance in Veregen® is sinecatechins, which is a partially purified fraction of the water extract of green tea leaves from Camellia sinensis (L.) O Kuntze, and is a mixture of catechins and other green tea components. Catechins constitute 85 to 95% (by weight) of the total drug substance which includes more than 55% of Epigallocatechin gallate (EGCg), other catechin derivatives such as Epicatechin (EC), Epigallocatechin (EGC), Epicatechin gallate (ECg), and some additional minor catechin derivatives i.e. Gallocatechin gallate (GCg), Gallocatechin (GC), Catechin gallate (Cg), and Catechin (C). In addition to the known catechin components, it also contains gallic acid, caffeine, and theobromine which together constitute about 2.5% of the drug substance. The remaining amount of the drug substance contains undefined botanical constituents derived from green tea leaves.
The structural formulae of catechins are shown below.
General Structure of Catechins
Each gram of the ointment contains 150 mg of sinecatechins in a water free ointment base consisting of isopropyl myristate, white petrolatum, cera alba (white wax), propylene glycol palmitostearate, and oleyl alcohol.
What are the possible side effects of kunecatechins (Veregen)?
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Wash off the ointment with mild soap and water and call your doctor at once if you have any of these serious side effects:
- severe redness, burning, or itching of treated skin;
- swelling, blisters, sores, or skin changes where the medicine was applied;
- hardening of the treated skin areas; or
- bleeding of treated skin.
Less serious side effects may include mild stinging,...
What are the precautions when taking sinecatechins ointment (Veregen)?
Before using this product, tell your doctor or pharmacist if you are allergic to it; or if you are allergic to green tea; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
Before using this medication, tell your doctor or pharmacist your medical history, especially of: open sores in the area being treated, recent/unhealed treatment or wound on the wart area (e.g., podophyllin, liquid nitrogen, surgery), immune system problem.
This product may stain clothing and bedding.
Do not expose the treated area to sunlight, tanning booths, or sunlamps.
Genital/anal warts are caused by a virus called human papillomavirus (HPV). This product...
Last reviewed on RxList: 12/7/2012
This monograph has been modified to include the generic and brand name in many instances.
Additional Veregen Information
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