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RxSexual Health
TEMPO 4-in-1
40,000+ products sold · LegitScript certified
A four-ingredient sublingual formula combining apomorphine with sildenafil, tadalafil and vardenafil. Explore the dopamine-signaling and blood-flow pathways behind the blend, with five doses in the current monthly catalog option.
TEMPO 4-in-1 brings apomorphine, sildenafil, tadalafil and vardenafil into one sublingual liquid: each dose is 2 mL in a single-use packet. The distinctive part is the combination of central dopamine signaling and the PDE5 blood-flow pathway. Here is what each ingredient contributes, what the delivery format means, and how TEMPO compares with the other sexual-health products in the HealthRX.com catalog.
01 / Central signaling
Apomorphine
Dopamine receptors
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02 / Blood-flow signaling
Sildenafil, tadalafil & vardenafil
PDE5 and the cGMP pathway
Four ingredients, explained
Every name in the formula has a role.
An ingredient list tells you what is included. Knowing the ingredient classes helps you understand the product. TEMPO has one dopamine-receptor agonist and three PDE5 inhibitors, so its four active ingredients span two groups.
01
Dopamine signaling
Apomorphine
Apomorphine is the ingredient that makes TEMPO different from a formula containing only PDE5 inhibitors. It acts at dopamine receptors, which are involved in signaling within the central nervous system. Researchers have studied sublingual apomorphine in erectile dysfunction as a way of engaging the signaling associated with an erectile response. Its role in this formula belongs to that central pathway, while the other three ingredients belong to the PDE5 pathway. Understanding those separate roles is more useful than treating all four names as versions of the same medication.
02
PDE5 inhibition
Sildenafil
Sildenafil is the active ingredient also found in single-ingredient sildenafil tablets. PDE5 is an enzyme that breaks down cGMP, a chemical messenger involved in smooth-muscle relaxation. Inhibiting that enzyme supports the blood-flow response associated with sexual stimulation. In TEMPO, sildenafil is one component of a combined formulation. A familiar ingredient name helps explain the pathway, but the finished product is a blend rather than a standalone sildenafil tablet.
03
PDE5 inhibition
Tadalafil
Tadalafil works through the same broad enzyme target as sildenafil: PDE5. It is also sold in separate tadalafil products, including as-needed tablets and daily tablets. Those options have their own strengths, quantities and schedules. TEMPO combines tadalafil with three other active ingredients in a sublingual formulation. This makes the product comparison about the complete formulation and its route, rather than transferring the schedule of a separate tadalafil product to the blend.
04
PDE5 inhibition
Vardenafil
Vardenafil is the third PDE5 inhibitor in TEMPO. Although sildenafil, tadalafil and vardenafil are distinct molecules, they share this enzyme target. Listing them individually makes the formula transparent; grouping them together explains how the design works. Vardenafil adds another ingredient from the blood-flow pathway, while apomorphine is the ingredient from the dopamine-signaling pathway. TEMPO therefore combines four active ingredients across two pharmacologic groups.
Follow the pathway
From a signal to a physical response.
Sexual stimulation, signaling and blood flow are connected parts of an erectile response. Nitric oxide activates a pathway that increases cGMP in the erectile tissue. That messenger helps smooth muscle relax, supporting blood flow. PDE5 breaks cGMP down; sildenafil, tadalafil and vardenafil inhibit that enzyme. Apomorphine belongs to a different part of the explanation, acting through dopamine receptors in the central nervous system. This pathway view helps explain why TEMPO is described as a combined formulation and why its ingredient list has two distinct groups.
The delivery format
A liquid dose, held under the tongue.
Each TEMPO dose is 2 mL of liquid in a single-use packet. You hold it under your tongue for about 60 seconds, then swallow. That sublingual route is different from the tablets swallowed straight down elsewhere in the catalog, and your provider confirms how and when to take it. Ingredient, strength and delivery route are separate pieces of product information: the ingredient names identify the active components, the strength identifies the amount, and the route describes the format. The current TEMPO catalog option lists five sublingual doses per month. That quantity describes the plan being purchased; it is different from the daily tadalafil listing, which is presented as a daily-tablet option.
Compare the actual products
TEMPO, sildenafil or tadalafil?
The useful comparison starts with what is in the product and how it is formulated. These options share a sexual-health category, but their ingredient lists and formats differ.
Formula and format comparison
Product
Active ingredients
Format
TEMPO 4-in-1
Apomorphine, sildenafil, tadalafil and vardenafil
2 mL sublingual liquid; five single-dose packets a month
Start with the question you are trying to answer. If you want to understand the active ingredient, compare the formula names. If you want to understand the format, compare sublingual and oral-tablet listings. If you want to understand the purchase, compare the selected plan and quantity. This separates three decisions that a general “4-in-1” description leaves bundled together. TEMPO’s defining difference is a four-ingredient sublingual formula containing both dopamine-signaling and PDE5-inhibitor components.
Go deeper
Read the ingredient research.
These sources explain the pharmacology behind the ingredients and the published study of sublingual apomorphine. They provide context for the two pathways described above.
An independent US-licensed clinician reviews every request. If they decide the treatment is not right for you, you get a full refund for the medication.
Prescriptions are filled by a US-licensed pharmacy and shipped free, in discreet packaging, on every plan.
LegitScript-certified · Cert 50087439
Compounded medications are prepared by a US-licensed pharmacy and are not reviewed by the FDA for safety or effectiveness. Products are dispensed only after a licensed provider determines they are appropriate. Information here is educational and is not a substitute for medical advice.
TEMPO 4-in-1From $88/mo · Provider reviewedChoose a plan
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