Zenegra Online

Read more about Zenegra (Generic Sildenafil) online.

Zenegra User Essentials: Effects, Caution, Instructions

Zenegra (generic sildenafil) is an optimal cost-effective solution against ED. The health benefits and tips for effective and safe use.


What is Zenegra?

Zenegra (sildenafil citrate) is an oral erectogenic agent used in male patients with clinical erectile disorder, or erectile dysfunction (ED). The drug is taken by mouth in anticipation of sexual act or other sexual activities.

Zenegra is an “on demand” medication and does not need to be taken according to any specific posologic schedule. However, the clinical evidence suggests that regular taking Zenegra or any other pharmacy drug containing sildenafil citrate can meaningfully improve erectile profile in the long run.


Zenegra is a full analog of the original sildenafil drug made universally popular under the brand name Viagra. Being a generically produced equivalent to the brand-name pill, Zenegra features all of the original preparation’s safety, efficacy and reliability, but none of its extravagant price.

Zenegra works for ED brought on by a vast variety of factors. It can help overcome erectile difficulty caused by physiological, psychogenic and mixed problems with male health. However, as every other pharmaceutically developed remedy, Zenegra does not work for everyone. There are conditions in which the drug is inefficient (those are problems related to vascular health), conditions that are contradictory for the use of sildenafil and poor individual response, when expected benefits are not observed. Alternative drugs from the same group are recommended if latter is the case.

The prevalence of ED is estimated at 52% in the U.S., a figure that indicates the global epidemics. Since 1990s, ED has been recognized as a prevailing condition requiring special attention. After the introduction of sildenafil to the market in 1997, millions of men have gained access to an instant solution for their compromised virility, with minimal side events and risks for general health.

Weakened erectile function is very strongly associated with ageing, but is not a necessary part of it. According to national surveys, 40% of respondents aged around 40 report erectile difficulty to a certain degree; this figure increases to 70% for septuagenerians.

Other factors affecting erectile potential include physiologic predisposition, lifestyle habits and traumatic experiences, of both physiological and psychological nature.

Sildenafil acts by dilating the blood vessels and increasing their elasticity. It is a substance that is used not only in male sexuality therapies, but for a large number of other medical purposes. In particular, sildenafil is indispensible when regulating pulmonary tension, blood pressure or mountain sickness. The drug features a heart-friendly profile that makes it an optimal treatment for persons with cardiac conditions as a comorbidity to erectile disability.

Who makes Zenegra?

Zenegra is a generic preparation produced by a non-developed company Alkem Laboratories Ltd. based in India. Traditionally, India has favorable economics and basis for production of non-brand name drugs. The manufacturing of medications is realized in strict compliance with ISO 9001:2000. Indian pharmaceutical companies have strong reputation of honest and ethical work put into their manufacturing process, as well as the low cost of workforce – a winning condition explained by the macroeconomics of the country. Moving the production of popular (and often overpriced) drugs to the countries with more favorable cost of labor allows to create affordable medical products based on high-quality materials.

Zenegra is a generic of sildenafil citrate; in simple English, this means that sildenafil tablets are produced by a company that was not a part of the drug research and developing process. However, generic manufacturers are licensed for producing the drugs based on the original formula, so the final products that they deliver do not differ from the original tablets in efficacy, quality or safety. The only difference is the price, which is oftentimes 90% lower than the price of the drug produced by the original developing company.

Below, you can find a comparative table on Zenegra and Viagra

Drug NameZenegraViagra
Active SubstanceSildenafil citrateSildenafil citrate
ManufacturerAlkem Laboratories Ltd.Pfizer
Country Of OriginIndiaUS
Available Doses25mg / 50mg / 100mg25mg / 50mg / 100mg
Estimated Efficacy, FDA Data84.4%84.4%
Common Side EffectsHeadache, flushing, rhinitisHeadache, flushing, rhinitis

How to use Zenegra?

As mentioned above, Zenegra is an on-demand medication that needs to be taken directly before engaging in sexual activity. The response window for sildenafil ranges between 30 and 60 minutes, but the drug can be taken anywhere between 30 minutes and 4 hours before the planned intimacy.

Take Zenegra tablet without crushing or chewing, following with a sufficient amount of liquids, preferably water. Avoid drinking more than 3 units of alcohol when taking Zenegra. Food intake can affect the health outcomes of sildenafil, it is recommended to take the drug after a light meal or in a fasted state.

Start with a dose of sildenafil 50mg, and ask your prescriber to adjust it up or down based on your responses and tolerance. Never increase the maximal dose of Zenegra recommended for you individually.

How to use Zenegra

Zenegra - how long does it last?

The efficacy window of Zenegra is 4-5 hours, but you might find that the drug effects last longer, since the longevity of sildenafil results is largely based on the individual responsiveness of the user.

The maximal concentration of sildenafil in blood plasma is achieved 30-60 minutes after the intake. The drug is eliminated by liver (major route) and kidneys (minor route) after 4 to 5 hours. Avoid taking Zenegra in combination with grapefruit or grapefruit juice, since they can inhibit the enzyme that is responsible for metabolizing sildenafil, which can potentially lead to increased toxicity.

Be advised that increasing the dose of Zenegra will not result in extended duration of its effects, but will most often lead to intensified adverse reactions towards the drug. Ultimately, you should rely on the instructions of your prescriber when taking Zenegra in matters concerning doses, intake recommendations and management of side effects.