About Thunder God Vine

Medicinal Thunder God Vine Safety Notice and Common Side Effects

Hereafter, you will find an English translation of medicinal Thunder God Vine (= Lei Gong Teng in Chinese = T2 extract = medicinal TGV) safety notice from Chinese. The translation is from a well trained translator and is hopefully very accurate.

The prescription range is 1 to 1,5mg/kg/day taken after a meal in 3 times (breakfast, lunch and diner). The presentations of medicinal Thunder God Vine is in tablets of 10mg.

Medicinal TGV is usually very safe, nonetheless adverse reactions may occur during the taking and contraindications exist as with any active medicinal plant extract. Main possible side effects as physicians and medical documentation reports are gastrointestinal discomfort and fertility decrease.

Common side effects

Most common side effects from the studies and as reported by physicians are :

  • Gastrointestinal disturbance including nausea, abdominal discomfort and liver dysfunction which normally do not lead to stopping the taking and are transitional.
  • Diminished or absence of menstruation (amenorrhea) in women. Decrease of sperm count in men. This is the reason why mTGV is given to patients that do not wish to conceive.

English version


Take according to the instruction and under guidance of a physician. Do not exceed the prescribed dosage.

Make regular medical checks of blood count, kidney, liver, urine, and heart functions during the taking. Stop taking if necessary.

Adverse reactions will stop when stopping taking.

Elderly people and those who have severe cardiovascular disease, please take with caution.

Contraindicated during pregnancy.

Possible adverse reactions

Digestive system: dryness of the mouth, nausea, emesis, inappetence, abdominal distention, diarrhea, aminotransferase elevation. Severe adverse effects may occur in case of liver damage and gastrorrhagia.

Hematologic system: leukocyte and platelet decrease. Severe adverse effects may occur in case of granulocyte lack and pancytopenia.

Urinary system: oliguria or polyuria, oedema, abnormal renal function. Severe adverse effects may occur in case of acute renal failure.

Cardiovascular system: palpitation, chest distress, arrhythmia, elevation or decrease of blood pressure and electrocardiographic abnormality.

Genital and endocrine system: women’s menstrual disorder, menstrual quantity decreases or amenorrhoea; decrease in the number or quality of men’s sperm.

Nervous system: dizziness, somnolence, insomnia, neuritis and diplopia.

Others: erythra, pruritus, alopecia and facial hyperpigmentation.


Pregnant and lactating women.

Cardiac insufficiency, hepatic insufficiency or renal insufficiency.

Severe anaemia, leukocyte or platelet decrease.

Stomach and duodenal ulcer.

Severe arrhythmia.

Read more

Thunder God Vine dosage and Common Drug Association : please also consider reading the medicinal TGV dosage page

Clinical Trials and Studies : an effort to gather and make more accessible the medicinal TGV clinical trials and studies.

Chinese version

Here is the original document in Chinese, for those of you who have some.

Thunder God Vine safety notice in Chinese


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