Petril Beta 10 Tablet is a prescription medicine used to treat anxiety disorder. It calms the brain by decreasing the abnormal and excessive activity of the nerve cells. It blocks the action of certain chemical messengers on the heart and blood vessels. This reduces heart rate and blood pressure. Petril Beta 20 Tablet is used in the treatment of Anxiety disorder. View Petril Beta 20 Tablet (strip of 10 .0 tablets) uses, composition, side-effects, price, substitutes, drug interactions, precautions, warnings, expert advice and buy online at best price on 1mg.com Petril Beta-10 Tablet is used to treat anxiety. Besides this, it is also used to treat high blood pressure, panic disorder, seizure disorder, fast heartbeat, and migraine. It contains two medicines, namely Clonazepam and Propranolol. It may cause common side effects, such as dry mouth, slow heart rate, depression, fatigue (overtiredness), nightmares, sleep disturbances, memory impairment, and confusion. View Uses, Benefits, and Price of Petril Beta-10 Tablet at Apollo Pharmacy. Know Petril Beta 10mg Tablet 10'S uses, side-effects, price, substitutes, drug interactions, precautions, warnings, expert advice and more on Netmeds.