Avonex Pen and Prochieve

• Generic Name: interferon beta-1a
• Dosage Forms: n.a.
• Other Brand Names: Avonex, Avonex Pen, Rebif, Avonex Prefilled Syringe, Rebif Rebidose, Rebif Rebidose Titration Pack, Rebif Titration Pack

• It is used to treat MS (multiple sclerosis).

• Generic Name: progesterone
• Dosage Forms: n.a.
• Other Brand Names: Crinone, Endometrin, FIRST-Progesterone VGS 200, Prochieve, First Progesterone MC10, Menopause Formula Progesterone, Prometrium

Progesterone is a female hormone important for ovulation and menstruation. Progesterone causes changes in the lining of your uterus, making it easier for a fertilized egg to attach to the uterus at the beginning of pregnancy. Progesterone then helps your body maintain the pregnancy.

Prochieve (for use in the vagina) is used to cause menstrual periods in women who have not yet reached menopause but are not having periods due to a lack of progesterone in the body.

Prochieve is also used in fertility treatment as part of Assisted Reproductive Technology (ART) for women unable to get pregnant due to a lack of natural progesterone in the body.

Prochieve is also used to prevent overgrowth in the lining of the uterus in postmenopausal women who are receiving estrogen hormone replacement therapy.

Prochieve may also be used for purposes not listed in this medication guide.