Medicinal gourd made from root for diabetes.

Our Ayurvedic doctors worked to use local medicinal plants in various ways for diabetes. Since the past, diabetes or the disease of high blood sugar level has been treated with kovacka. This plant was used for Ayurvedic medicine in Sri Lanka as well as in Asian countries including India. It is also used as a vegetable.

Ayurveda mentions kovacka as a herbal food that should be known. Recently, we heard that a research team of Ruhunu University's Faculty of Medicine has developed a new drug in the form of a medicine capsule and obtained a patent as a result of a long-term research.

This is a trip to find out how this medicine was made.

Research begins

A group of professors from Ruhunu University's Faculty of Medicine had been curious about the medicinal properties of the Kovakka plant used in Sri Lanka's local medicine for some time. This group is a group of scholars who have done a lot of medical scientific research before this. They planned to conduct a medical research on the ability of the kovacka plant to lower blood sugar levels. The proposal was submitted to the National Institute of Science in 2017 and the proposal was accepted and an allocation of Rs. 47 lakhs were allocated.

Prof. T. Thilak. Weeraratne, Dr. Piyumi Vasana, Prof. K. A. P. W. of Ruhunu Faculty of Medicine. Jayathilaka, Professor Anoja Attanayake of the Department of Biochemistry, Professor Kamani Jayathilaka of the Department of Biochemistry was involved in this research.

They isolated the chemicals in the kovacka plant and conducted research in the laboratories, revealing that they are capable of reducing blood sugar. After that, they have produced a medicinal capsule using that chemical.

After that, the first phase of research was done using chemically induced animals. There, the dose to be given to diabetic patients has been analysed. After the successful results, the new drug has been sent to clinical research.

Clinical research

Clinical research has been conducted using 158 patients between 30-60 years of age suffering from diabetes. Professor Tilak Viraratne told the media about it in this way:

"We got successful results from clinical research. It was confirmed that the amount of sugar in human blood decreases by using the capsules we have produced. We have confirmed that no one will have any adverse effects from using this medicine. Also, we have been confirmed by three months of clinical research that this new medicine is able to reduce the level of unhealthy fats in human blood.

A research article about the new drug has been published in the international research journal Elsevier with the results obtained from clinical trials. Meanwhile, the research team has also obtained a patent for the new medicine produced.

The specialty of this medicine is that it is produced from a plant extract traditionally used in Sri Lanka according to western medicine standards. It is the first time that its health results have been confirmed by clinical research in Sri Lanka.

The drug will soon be on the market.

The medicine has been produced by carefully identifying the plant's chemicals and extracting them. The researchers say that this product has already received international recognition and due to the patent ownership, the Faculty of Medicine of Ruhunu University is working on the production of the medicine at a commercial level.

Do not eat at will.

The research team also requests that even if a medicine is successfully produced from the kovacka plant, people with high blood sugar should not be tempted to eat too many parts of the kovacka plant.

The medical team advises never to use it without proper medical advice, saying that consuming guava without advice can have harmful effects on the human body.

Western medical view of diabetes.

Dr. Ruwan Marasinghe of Kalubowila Teaching Hospital says that there are two types of diabetes.

There are two types of diabetes, insulin-dependent and non-insulin-dependent. Insulin-dependent disease can be controlled by administering insulin in appropriate doses. According to Western medicine, diabetes cannot be completely cured. Medicines are given to control the disease and maintain proper blood sugar levels.

Similarly, medicines should be taken systematically to control the disease. Controlling the disease also varies according to the body type of different people. The doctor prescribes the medicine according to his body type. No medicine can cure 100 percent of the disease. But a large number of people have successfully controlled the disease using medicines.


Kovacka can be called as a type of vine that is widely found in the dry region of South Asian countries. In our country, in the Rajarata provinces, not only in the fences of the hens, but also in the pits on the side of the highways, you can see a lot of red fruit-filled gourds. Guava fruit is green in color when young. Ripe fruits turn a beautiful red or dark pink color. The fruit is up to 8 cm long. White flowers appear. It is known by the botanical name of Coccinia grandis. In Tamil it is called Kovvai. This is also known as Ivy Gourd/Scarlet Gourd in English.

The young leaves of the kovacka vine are used to make mallum. The curry made from cowpea porridge and cowberry nuts is also a delicious dish. Cucumbers are commonly found in Indian, Malaysian and Thai recipes. Cultivation of covacca is also done at the commercial level in India and many Ayurvedic products containing covacca extract can be seen in the market.

Diseases cured by Kovacka.

In traditional medicine, kovacka has been used as an herb since ancient times for leprosy, fever, asthma, bronchitis and viral diseases. A specialty of this plant is its ability to lower blood glucose levels very quickly. Because of this, traditional and Ayurvedic doctors have used parts of the kovacka plant in the treatment of diabetic patients. Even local doctors say that people with low sugar should eat with caution because after eating guavaka, the blood glucose level may drop.

The juice of kavaka fruit or the juice of the leaves is used for skin rashes, hori, eczema, kushta, palu etc. In local medicine, it is shown that the juice of crushed kavakka roots and stalks is very beneficial for joint pains and joint pains. In traditional medicine, kovacka is also used for diseases such as cough, dysentery, excessive urination, anemia, and fever.

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