Atralin Gel and Plegridy Pen

• Generic Name: tretinoin topical
• Dosage Forms: gel
• Other Brand Names: Atralin, Altreno, Avita, Refissa, Renova, Retin-A, Tretinoin Emollient Topical, Retin A Micro Gel, Retisol-A, Stie Vaa, Stie Vaa Forte, Stievaa, Vitinoin, Altinac, Tretin-X, Retin A Micro Gel Pump, Renova Pump, Retin-A Micro Microsphere Pump, Tretinoin Microsphere

It is not likely that other drugs you take orally or inject will have an effect on topically applied tretinoin. But many drugs can interact with each other. Tell each of your health care providers about all medicines you use, including prescription and over-the-counter medicines, vitamins, and herbal products.

• Generic Name: peginterferon beta-1a
• Dosage Forms: subcutaneous injection
• Other Brand Names: Plegridy, Plegridy Pen, Plegridy Pen Starter Pack, Plegridy Starter Pack

Peginterferon beta-1a injection is used to treat the relapsing forms of multiple sclerosis (MS). This medicine will not cure MS, but it may slow some of the disabling effects and decrease the number of relapses of the disease. Peginterferons are natural substances that are produced in the body to help fight infections. Peginterferon beta-1a is a synthetic (man-made) version of these substances.

This medicine is available only with your doctor's prescription.