Cafcit Oral and Letairis

• Generic Name: caffeine
• Dosage Forms: injection
• Other Brand Names: Cafcit, NoDoz, Vivarin

Caffeine tablets are used as an alertness aid to help you keep awake when you experience drowsiness or unusual tiredness or weakness. Do not use this medicine as substitute for sleep.

Caffeine oral solution is used to treat short-term apnea of prematurity when premature babies (infants between 28 and 32 weeks gestational age) stop breathing. Apnea of prematurity is caused by the baby's breathing centers not being fully developed.

This medicine is available with or without your doctor's prescription.

• Generic Name: ambrisentan
• Dosage Forms: tablet, film coated
• Other Brand Names: Letairis

Letairis (ambrisentan) prevents thickening of the blood vessels, especially those in the lungs and heart. Ambrisentan also lowers blood pressure in your lungs, helping your heart pump blood more efficiently.

Letairis is used to treat pulmonary arterial hypertension (PAH) in adults. It improves your ability to exercise and prevents your condition from getting worse.

Letairis is sometimes used with a medicine called tadalafil (Adcirca).

For women, Letairis is available only from a certified pharmacy under a special program. You must be registered in the program and sign agreements to use birth control and undergo pregnancy and blood testing.