“It is safe to take one dose of nitroglycerin if I am taking sildenafil.”
“I should chew up three tablets at once, and then call 9-1-1 if I still have chest pain in 15 minutes.”
“I can take up to three tablets, 5 minutes apart, under my tongue as needed for chest pain.”
“I can keep the pills in a glass cup on my nightstand so I can reach them easily in an emergency.”
Number 3 is correct.
Rationale: Nitroglycerin should be taken one tablet at a time, sublingually every 5 minutes up to three doses over 15 minutes as needed for chest pain. If pain relief does not occur, 9-1-1 should be called. It is not safe to take nitroglycerin if taking sildenafil unless approved by the health care provider. Nitroglycerin should be taken one tablet at a time and never chewed or crushed. The pills must be kept in a dark container to prevent loss of effectiveness of the medication.