If your doctor is concerned your ED is an indicator of a more serious problem, they may send you to a specialist who can run some additional tests. In addition to these online resources, Margaret Lynch, our Undergraduate Research Advisor is available to meet with students who are early in their lab search. It is typical for students to contact several labs at a time and you may not hear back from each one. Starting in your junior spring you can receive course credit for your lab work by enrolling in Neurobiology In pulmonary hypertension it works by relaxing blood vessels in the chest.Brand: Viagra. Form: oral tablet; Strengths: 25 mg, 50 mg, mg; Adult dosage (ages 18–64 years) Typical dosage: 50 mg, taken as needed about 1 hour before sexual activity. It can be taken The Savings Offer and Program expire on 12/31/ For further information, call , visit test1.ru, or write: Viatris Inc., P.O. Box , Mission, KS Eligible patients may save on their VIAGRA® (sildenafil citrate) prescription with the VIAGRA savings card. Viagra (sildenafil) is a prescription drug that’s used to treat erectile dysfunction (ED). The drug comes as a tablet you’ll take by swallowing. It’s usually taken as needed about 1 hour.