Low-Dose Combination Formulation for Premature Ejaculation Delay

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Solution Overview

Problem

Existing treatments for premature ejaculation often require higher doses of drugs, leading to intolerable side effects, and there is a need for a method and formulation that provides superior ejaculation delay with reduced side effects.

Innovation Solution

A low dose combination therapy using Tadalafil, Silodosin, and Paroxetine in a single pill formulation, administered in specific dosages to achieve extended intra-vaginal ejaculatory latency time (IELT) while minimizing side effects.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If higher doses of drugs are used to achieve delay in ejaculation, then the effectiveness of treatment is improved, but side effects become intolerable

Engineering Contradiction:
Improveeffectiveness of PE treatmentVSAvoidside effects
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent divides the treatment into multiple drug components (PDE5i, alpha-1a antagonist, and SSRI) administered in low doses simultaneously. This segmentation allows each drug to contribute to the overall therapeutic effect without requiring high doses of any single agent, thereby reducing side effects while maintaining treatment effectiveness.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent combines three different drug classes (PDE5i, alpha-1a antagonist, and SSRI) into a single combination therapy. This merging creates synergistic effects where the drugs work together to delay ejaculation more effectively than any single drug could alone, allowing for lower individual doses and reduced side effects.

Inventive Principle:
Principle #5Merging (Combining)

2Ease of operation

If single drug therapy is used, then treatment simplicity is maintained, but side effects increase and effectiveness is limited

Engineering Contradiction:
Improvetreatment simplicityVSAvoidside effects
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent merges multiple drug classes into a single combination formulation that can be administered as one treatment regimen. This maintains ease of operation by providing a unified treatment approach while reducing side effects through the synergistic low-dose mechanism of the combined drugs.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS20260053797A1Method and formulation for treating male premature ejaculation
Publication Date: 2026.02.26 ZYVRAN PHARMACEUTICALS INC

AI summary

A method of treating premature ejaculation in men may include administering a therapeutically effective dosage of a formulation to a patient in need thereof. The formulation for treating male premature ejaculation may include a phosphodiesterase 5 inhibitor (PDE5i), such as Tadalafil; an alpha-1 adrenoreceptor (alpha-1a) selective antagonist, such as Silodosin; and a selective serotonin reuptake inhibitor (SSRI), such as Paroxetine.