If the person for whom you are interceding has not confessed Jesus as Savior and Lord, pray specifically for His/her salvation, if you have not already done so. Stand and thank the Father that it is done in the name of Jesus. Then pray:

Father, in the name of Jesus, I come boldly to Your throne of grace and present __________ before You. I stand in the gap and intercede in behalf of __________, knowing that the Holy Spirit within me takes hold together with me against the evils that would attempt to hold in bondage.

I unwrap __________ from the bonds of wickedness with my prayers and take my shield of faith and quench every fiery dart of the adversary that would come against __________.

Father, You say that whatever I bind on earth is bound in heaven, and whatever I loose on earth is loosed in heaven. You say for me to cast out demons in the name of Jesus.

So I speak to you, Satan, and to the principalities, the powers, the rulers of the darkness and spiritual wickedness in high places and the demonic spirits of __________ (names of spirits) assigned to __________.

I take authority over you and bind you away from __________ in the mighty name of Jesus. You loose __________ and let him/her go free in the name of Jesus. I demand that you desist in your maneuvers now. Satan, you are a spoiled and defeated foe.

Ministering spirits of God, you go forth in the name of Jesus and provide the necessary help to and assistance for __________.

Father, I have laid hold of __________ 's salvation and his/her confession of the Lordship of Jesus Christ. I speak of things that are not as though they were, for I choose to look at the unseen—the eternal things of God. I say that Satan shall not get an advantage over __________ for I am not ignorant of Satan's devices.

I resist Satan, and he has run in terror from __________in the name of Jesus. I give Satan no place in __________. I plead the blood of the Lamb over __________, for Satan and his cohorts are overcome by that blood and Your Word.

I thank You, Father, that I tread on serpents and scorpions and over all the power of the enemy in __________'s behalf, __________ is delivered from this present evil world. He/she is delivered from the powers of darkness and translated into the Kingdom of Your dear Son!

Father, I ask You now to fill those vacant places within with Your redemption, Your Word, Your Holy Spirit, Your love, Your wisdom, Your righteousness and Your revelation knowledge, in the name of Jesus.

I thank You, Father, that __________ is redeemed by the blood of Jesus out of the hand of Satan. He/she is justified and made righteous by the blood of Jesus and belongs to You—spirit, soul and body.

I thank You that every enslaving yoke is broken, for he/she will not become the slave of anything or be brought under its power, in the name of Jesus.

__________ has escaped the snare of the devil, who has held him/her captive, and henceforth does Your will, Father, which is to glorify You in his/her spirit, soul and body.

Thank You, Father, that Jesus was manifested that He might destroy the works of the devil. Satan's works are destroyed in __________'s life in the name of Jesus. Hallelujah! __________ walks in the Kingdom of God, which is righteousness, peace and joy in the Holy Spirit! Praise the Lord! Amen.

Once this prayer has been prayed, thank the Father that Satan and his cohorts are bound. Stand firm, fixed, immovable and steadfast on your confessions of faith as you intercede on this person's behalf, for greater is He that is in you, than he that is in the world (1 John 4:4).

Scripture References
Hebrews 4:16
2 Corinthians 2:11
Ezekiel 22:30
James 4:7
Romans 8:26
Ephesians 4:27
Isaiah 58:6
Revelation 12:11
Ephesians 6:16
Luke 10:19

Source: Prayers That Avail Much Vol. One by Germaine Copeland.
Excerpt permission granted by Harrison House Publishers