Pink Grapefruit Juice and Hair Loss?

I drink pink grapefruit juice from concentrate everyday which helps to increase my methadone level. Can you tell me if you know of any claims or studies done which show that by drinking grapefruit juice before taking methadone can actually increase one’s methadone blood level ?

I am curious to know if drinking pink grapefruit juice from concentrate can cause one to actually lose hair ? Thank you

Pink (or yellow) grapefruit (juice or concentrate or in any from) does not cause hair loss. Grapefruit juice interacts with many prescription drugs, but I am unfamiliar with any connection to methadone.

For more info, see these links from CBS News / WebMD:

• Why Grapefruit May Affect Some Drugs
• Grapefruit Bad With Some Drugs