Bring the medicines you take only sometimes, too

Build a list that reflects real use

A medication review is less useful when it includes only the tablets taken every morning. Before discussing sildenafil, gather prescription medicines used occasionally, over-the-counter products, vitamins, supplements and treatments obtained from another online service. Include items you are considering starting. Tell the clinician what you actually take, even if an old prescription list says something different.

MedlinePlus asks patients to discuss prescription and nonprescription medicines and supplements with their doctor and pharmacist. A product does not become irrelevant because it is bought without a prescription or used infrequently. Take the packaging or an accurate photograph if a name is hard to remember. [Medication precautions]

Make potentially important combinations explicit

The Viagra label contraindicates use with nitrates or nitrites, including certain chest-pain medicines, and with the guanylate cyclase stimulator riociguat. Recreational products known as poppers also need to be disclosed. These combinations can cause a dangerous fall in blood pressure. Do not decide that occasional use or a gap you chose yourself makes the combination safe. [Contraindications] [Patient precautions]

Other medicines can require clinical adjustment or monitoring, including some blood-pressure treatments, alpha blockers and medicines that change sildenafil exposure. This article does not list every interaction. An omitted medicine is not a cleared medicine; ask the prescriber or pharmacist to review your complete list.

Look for ingredients hidden behind different names

Another sildenafil product, tadalafil prescription or branded ED compound may be easy to overlook when it comes from a separate service. Say which product you have and how it is labeled. The Viagra prescribing information does not recommend combining it with other PDE5 inhibitors or ED therapies. Do not treat different brand names as evidence of different, compatible drug categories. [Combination warning]

Sexual-enhancement supplements add another uncertainty. NCCIH reports that some contain undeclared drug ingredients, so a package labeled natural cannot settle the interaction question. Our pharmacy and supplement guide explains why knowing the supply matters. [NCCIH]

Connect the list with your health history

Tell the clinician about heart, kidney or liver disease, blood-pressure problems, eye or hearing history and previous prolonged erections, along with any advice to avoid sexual activity. The medication information describes a wider set of precautions; use it as preparation rather than a self-screening test. NIDDK also includes sexual and mental-health history in the assessment. [Precautions] [Assessment]

Before leaving the conversation, ask how to check a newly prescribed medicine later. Do not independently stop a necessary treatment to make room for sildenafil. Keep the resulting list available for your pharmacist and any emergency team. If chest pain occurs during sexual activity, seek urgent care and tell the team when sildenafil was last used.