Ro Sparks dissolve under your tongue instead of being swallowed. This allows the medication to be absorbed directly into your bloodstream, rather than passing through your digestive system first. Faster absorption may help Ro Sparks work sooner than traditional sildenafil.

Ro Sparks is designed to start working quickly by dissolving under your tongue. After it dissolves, it works in about 15 minutes, on average.

Ro Sparks is a dual-action formula that contains tadalafil, an ED medication that can remain active in your bloodstream for up to 36 hours.

But that doesn't mean you'll have an erection for 36 hours; it just means the medication stays available in your body to support erections when you're sexually stimulated within that window of time.

Take Ro Sparks at least 15 minutes before sex. Place one Ro Sparks drop under your tongue and let it dissolve completely. The drop dissolves in about 10 minutes, on average. While it's dissolving, avoid eating or drinking.

Do not take more than one dose in a 24-hour period.

For most people, a Ro Sparks drop dissolves in about 10 minutes, on average.

Ro Sparks is intentionally designed to dissolve gradually under your tongue. This helps maximize absorption into your bloodstream and supports a faster onset compared to medications that are swallowed.