Trayodashang Guggul is a very famous Ayurvedic medicine. It is in tablet form.  It is also known as  Trayodasanga Guggul tablets, Trayodasanga Gulgulu etc. This tablet has Guggulu (commiphora mukul) as its base.It is widely used in the Ayurvedic treatment of joint pain related disorders. Here, Guggulu is treated with 13 ingredients. So the name Trayodashang.
Trayodashang Guggul benefits: 
It is widely used in the Ayurvedic treatment of low back pain, sciatica, arm pain, locked jaw, knee joint pain, foot pain,
arthritis pain and myalgia.
Doctors also prescribe this medicine for the treatment of:
Lordosis
Sciatica, Lumbar spondylosis
Rheumatoid arthritis
Osteo Arthritis
Trayodashang Guggul dose: 
1 – 2 tablets 2 – 3 times a day, before or after food or as directed by Ayurvedic doctor.
Usually it is administered along with gruel, warm water, alcohol, milk or meat soup, based on disease.
Trayodashang Guggul Side Effects: 
There are no known side effects with this medicine. However it is best to use this product under medical supervision. 
Self medication with this medicine is discouraged.
Very high dose than prescribed may lead to stomach irritation.
Trayodashang Guggul Ingredients: 
Abha – Acacia nilotica Linn. / indica / arabica Willd – 1 part
Ashwagandha – Withania somnifera – 1 part
Hapusha – Juniperus communis Linn.- 1 part
Guduchi – Tinospora cordifolia – 1 part
Shatavari – Asparagus racemosus- 1 part
Gokshura – Tribulus terrestris- 1 part
Vriddhadaru – Argyreia speciosa- 1 part
Rasna – Pluchea lanceolata- 1 part
Shatahva – Anethum sowa Kurz.- 1 part
Shati – Hedychium spicatum- 1 part
Yamani – Trachispermum amami- 1 part
Nagara – Ginger- 1 part
Kaushika – Guggulu – purified – 12 part
Sarpi – ghee – 1 part
Fine powder of the rest of the ingredients are added to guggulu, pounded and tablets are prepared.