This increased blood flow can cause an erection. Pregnant or planning a pregnancy? You should avoid consuming alcohol while taking this medication, as it can increase the risk of side effects. The most common drug interactions associated with SC Pill are nitrates, alpha-blockers, and protease inhibitors. While this drug can be effective, it is important to be aware of its potential interactions with other medications. SC tablets can interact with other medications, so your doctor must know everything you’re taking.What Sildenafil is and what it is used for. 2. What you need to know before you take Sildenafil. 3. How to take Sildenafil. 4. Possible side effects. 5. How to store . Use MD’s Pill Identifier to find and identify any over-the-counter or prescription drug, pill, or medication by color, shape, or imprint and easily compare pictures of multiple drugs.  · The SC pill is a green, oval-shaped pill used to treat various conditions. Some conditions this pill can be used for include erectile dysfunction and Pulmonary arterial hypertension. SC Pill treats erectile dysfunction (impotence; inability to get or keep an erection) in men. It is used to improve the ability to exercise in adults with.