Husband tortured by wife.

Sir my friend is married to this woman for past 9 years and has a child of 7.5 years. His wife is torturing him mentally right from the start of marraige. She has full support of her parents. My friend being a simple man keep quiet while she quarrels in loud voice. She doesn't allow my friend to talk to his parents. She says that her husband is incapable of doing great things. She also alleges that husband mixes some things in food which causes her problem. She talks irrelevant things. Abruptly takes the child with her and doesnt return for hours while my friend keeps waiting frantically searching her. Recently my friend spoke to her parents requesting them to counsel their daughter. But the in laws threatened him saying that all her allegations are true. He is really troubled. Please help. He is a doctor and he feels that his wife has some psychiatric issues but he could'nt reveal it to anyone except me. He wants to live with his wife and child but also feels that she should undergo counselling for her violent behaviour. Is there any way out legally so that she can be subjected to behavioral therapy.