Dextromethorphan, doxylamine, and pseudoephedrine and Tysabri

• Generic Name: dextromethorphan / doxylamine / pseudoephedrine
• Dosage Forms: n.a.
• Other Brand Names: Lortuss DM

Dextromethorphan is a cough suppressant. It affects the signals in the brain that trigger cough reflex.

Doxylamine is an antihistamine that reduces the effects of natural chemical histamine in the body. Histamine can produce symptoms of sneezing, itching, watery eyes, and runny nose.

Pseudoephedrine is a decongestant that shrinks blood vessels in the nasal passages. Dilated blood vessels can cause nasal congestion (stuffy nose).

Doxylamine, dextromethorphan, and pseudoephedrine is a combination medicine used to treat cough, runny or stuffy nose, sneezing, itching, and watery eyes caused by allergies, the common cold, or the flu.

dextromethorphan, doxylamine, and pseudoephedrine will not treat a cough that is caused by smoking, asthma, or emphysema.

Doxylamine, dextromethorphan, and pseudoephedrine may also be used for purposes not listed in this medication guide.

• Generic Name: natalizumab
• Dosage Forms: injection
• Other Brand Names: Tysabri

Tysabri (natalizumab) is a monoclonal antibody that affects the actions of the body's immune system. Monoclonal antibodies are made to target and destroy only certain cells in the body. This may help to protect healthy cells from damage.

Tysabri is used to treat relapsing forms of multiple sclerosis.

Tysabri is also used to treat moderate to severe Crohn's disease in adults. It is usually given after other medicines have been tried without success.