Yes, there are MEDICATIONS to decrease sexual arousal. These medications are called anti-androgens. They work by blocking the effects of testosterone and reducing libido. But without discussing your other hhealth issues it is not possible to prescribe any medicine here as these medications can have side effects and may not be appropriate for everyone. Other methods for decreasing sexual arousal include therapy, meditation, and physical exercise. Remember, it's natural to have sexual feelings, but it's important to control them in appropriate ways..