Sildenafil Contraindications – Viagra Patient Education
  • Delbert Morales
  • Sildenafil
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Sildenafil Citrate contraindications are also identified for the drug, just like in any other medication. Not all patients with erectile dysfunction can take the product since Sildenafil Citrate (Viagra’s main component) is known to have several drug interactions and multiple disease contraindications. These contraindications and drug reactions are one of the reasons why Viagra and its generic counterparts are prescription-only—there are many things to consider for Viagra use to establish its effectiveness and safety in the patients.

Sildenafil Mechanism of Action

Sildenafil Citrate, the main component of the iconic drug Viagra, is called a PDE5i or a phosphodiesterase type 5 inhibitor drug. This only means that Sildenafil Citrate is primarily a drug which inhibits the action of this phosphodiesterase enzyme in order to bring about its expected effects in the patients.

Although Viagra is the most famous Sildenafil Citrate drug in the world, there are countless other Sildenafil Citrate products available in the market—almost every country in the world has manufacturers producing their own versions of Viagra in the market. Regardless of the manufacturer, though, these medicines are similar in function and in their composition (save for a few differences in their inactive ingredients). The mechanism of action of Sildenafil Citrate across brands is the same—Sildenafil Citrate acts to stimulate vasodilation in the tissues to elicit the needed erectile enhancing effect.

Sildenafil Citrate use in the population is largely for erectile dysfunction treatment. However, since the vasodilatory mechanism employed by Sildenafil Citrate in the patients is also relevant to several medical conditions, Sildenafil Citrate uses have expanded during the past few years. The other use for Sildenafil Citrate is pulmonary hypertension and in improving exercise capacity, but studies are also underway for Sildenafil’s application in various medical conditions. Sildenafil is considered for female sexual dysfunction treatment, fertility treatment, pregnancy preservation, IVF assistive therapy, dementia therapy, and various other experimental uses. However, since it was popularized as a sex-enhancing medicine, Sildenafil Citrate’s use, as the world views, is only limited to erectile function improvement.

Who Should Not Take Viagra?

Some may think that since Viagra or Sildenafil Citrate products are effective, all patients afflicted with erectile dysfunction are qualified to take the product for their medical condition. However, this is not the case; not all patients with ED are eligible to take the drug for their impotence. Here is a rundown of the individuals prohibited to take Viagra for impotence:

  • Patients with liver dysfunction or failure
  • Males who suffered a recent stroke, heart attack, and any other life-threatening medical emergency during the past 6 months
  • Patients with angina or patients who have had angina during the past months
  • Males with cancers
  • Individuals with kidney failure
  • Men with erratic, uncontrolled blood pressure
  • Patients with bleeding problems

Patients are checked thoroughly before they are administered Sildenafil Citrate for whatever medical condition, so they can be safe while taking the product.

Nitroglycerin Tablets

Nitroglycerin Tablets

Drugs taken by patients anticipating Sildenafil prescriptions are first checked for their current medicines. This is because Sildenafil Citrate is notorious for interacting with other medicines. Some of the Sildenafil-contraindicated medicines include:

  • Nitrate medicines of all forms
  • Blood pressure regulating products
  • Alpha and beta blockers
  • Heart medicines
  • Ketoconazole and antifungal products
  • Erythromycin and antibacterial products

Sildenafil Citrate Dosage Recommendations for Erectile Dysfunction

So how will patients take Sildenafil Citrate? The dose recommendation for any Sildenafil Citrate drug (for erectile dysfunction) is anywhere from 25 mg to 100 mg. However, doctors have the authority to upgrade or downgrade any Sildenafil Citrate dose to find what works best for their clients.

Viagra Sildenafil Citrate Dosage

Viagra Sildenafil Citrate Dosage

As for the intake recommendation, patients are advised to take Viagra or any Sildenafil Citrate product at least half an hour before their sexual activity, since the drug is known to take effect in a window of 30-60 minutes. Here are some of the extra guidelines users need to know about Sildenafil Citrate products:

  • Take Sildenafil Citrate only when directed by your doctor
  • Do not take more than your dose—always follow your doctor’s instructions carefully
  • Do not take Sildenafil Citrate with the drugs which can possibly react to Sildenafil
  • If you have other medical considerations, let your doctor know immediately
  • Grapefruit juice is contraindicated with Sildenafil Citrate use.

Due to Sildenafil Citrate’s vasodilation action in the patients, patients can somehow expect side effects. Users of Sildenafil Citrate may experience the following due to the vasodilation and smooth muscle relaxation instigated by Sildenafil Citrate:

  • Skin flushing
  • Headaches
  • Dyspepsia
  • Blue vision
  • Blurry vision

These side effects are only some of the ones possibly expected in the patients. Major side effects also exist, such as heart attack symptoms, nausea and vomiting, and several others, but these side effects are rarely present in the male population taking the product.

Conclusion

Sildenafil Contraindications are not unusual—almost every prescription product has its own sets of contraindications since, at some point, drugs may interact with diseases or with other medications and cause the patients harm. To prevent these unfortunate events, patients are warned about the possible drug interactions and disease contraindications to help them stay safe.

These contraindications are also why Sildenafil Citrate is prescription-only—so only patients qualified to take the drug can take the drug. Even if you can purchase Sildenafil Citrate without Rx online, make sure to ask your doctor first if you are fit to take the product and then consult our List of TOP Rated Verified Online Drugshops.