Cialis online store

Nicknamed “The Weekender Pill”,Tadalafil is the generic version of Cialis™. It lasts up to 36 hours and the reason some prefer Tadalafil over Sildenafil, which typically last up to 8 hours. Please select your preferred dosage and number of pills.

  • Available in 5 mg, 10 mg, and 20 mg
  • Works in as quickly as 30 Minutes
  • Tadalafil lasts up to 36 hours
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* We can ship up to 30 pills at a time. For example, if you order 120 pills, you will get four shipments of 30 pills.

Health Questionnaire Required:

For your first order with us, after placing an order, you will be prompted to upload your ID and submit our health questionnaire, soour physician canreview your basic health information,in order to mail prescription medications. You will not need to do this for refill orders.

Disclaimer:This is not medical advice. You and our physician will determine if (and potentially how) you should take Tadalafil. Please consult with your physician if you have any further questions.For more information on Tadalafil,.

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Unless expressly indicated in the product packaging, the images shown on this page are informational for help with purchase only. These images are not medical advice. You must always make your own purchase. All prices are from US dollars. We recommend that you check with your doctor first.

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We will deliver your purchase to all these addresses: USA, Canada, and Saudi Arabia. Please check our website for details on shipping methods, and if you do not get your purchase through our delivery service, you will not be charged. All medications have to be brought to your door in the original package.

Health Info

Ingredients

Tadalafil (5 mg)

Precautions

Do not take Tadalafil if:

  • You are allergic to Tadalafil, Cialis, or any of the other ingredients of this medicine.
  • You are pregnant or plan to become pregnant.
  • You have a stomach ulcer or stomach bleeding.
  • You have a deformed penis.
  • You have a bleeding disorder.
  • You are taking any other medicines, including Tadalafil.
✓Health Information

This product is a prescription medication.

Interactions

A. Top Drug-Drug Interactions:

1.Nitrates (e.g., nitroglycerin, isosorbide dinitrate): Cialis and nitrates both lower blood pressure. Taking them together can cause a significant and potentially life-threatening drop in blood pressure (hypotension), leading to dizziness, fainting, or even heart attack or stroke. It is contraindicated to use Cialis with nitrates or recreational "poppers" (amyl nitrites).

2.Alpha-blockers (e.g., prazosin, terazosin, tamsulosin): Both Cialis and alpha-blockers relax blood vessels, which can lead to excessive blood pressure reduction when used together. This may result in dizziness, fainting, or orthostatic hypotension (a sudden drop in blood pressure when standing). If needed, your doctor may adjust the dosage or recommend spacing the medications.

3.Other antihypertensive drugs (e.g., atenolol, propranolol, enalapril, lisinopril): Cialis can enhance the blood-pressure-lowering effects of these medications. While this interaction is usually less severe than with nitrates or alpha-blockers, it can still cause dizziness or fainting in sensitive individuals. Close monitoring of blood pressure is recommended.

Other Drug-Drug interactions:

  • Ketoconazole, itraconazole (used to manage fungal infection)
  • Protease inhibitors (used to manage HIV infection) Ex. ritonavir, lopinavir
  • Phenobarbital, phenytoin, carbamazepine (medicines used for fits)
  • Rifampicin, erythromycin, clarithromycin (medicines used for bacterial infections)
  • Other medicines used to improve blood flow to the penis (Ex. sildenafil)

B. Drug-Food Interactions:

Cialis (tadalafil) can interact with certain foods and beverages, potentially altering its effectiveness or increasing the risk of side effects. Here are the key drug-food interactions to be aware of:

  1. Grapefruit and Grapefruit Juice: Grapefruit can increase the levels of tadalafil in your blood by interfering with its metabolism. This may amplify side effects, such as headaches, dizziness, or low blood pressure. Avoid consuming grapefruit or grapefruit juice while taking Cialis.
  2. Alcohol: Drinking alcohol with Cialis can enhance the blood pressure-lowering effects of the medication, leading to symptoms like dizziness, lightheadedness, or fainting. Limiting alcohol intake is recommended while using Cialis.
  3. High-Fat Meals: While Cialis can be taken with or without food, consuming it with a high-fat meal may delay its onset of action. Opt for lighter meals if rapid effectiveness is needed.
  4. Caffeine: Though not a direct interaction, combining Cialis with high caffeine intake might worsen side effects like headaches or increase heart rate in sensitive individuals.
Describing the order of the drug-food interactions is an ordered function.

Interactions

A. Top Drug-Drug Interactions:

1.Nitrates (e.g., nitroglycerin, isosorbide dinitrate): Cialis and nitrates both lower blood pressure. Taking them together can cause a significant and potentially life-threatening drop in blood pressure (hypotension), leading to dizziness, fainting, or even heart attack or stroke. It is contraindicated to use Cialis with nitrates or recreational "poppers" (amyl nitrites).

2.Alpha-blockers (e.g., prazosin, terazosin, tamsulosin): Both Cialis and alpha-blockers relax blood vessels, which can lead to excessive blood pressure reduction when used together. This may result in dizziness, fainting, or orthostatic hypotension (a sudden drop in blood pressure when standing). If needed, your doctor may adjust the dosage or recommend spacing the medications.

3.Other antihypertensive drugs (e.g., atenolol, propranolol, enalapril, lisinopril): Cialis can enhance the blood-pressure-lowering effects of these medications. While this interaction is usually less severe than with nitrates or alpha-blockers, it can still cause dizziness or fainting in sensitive individuals. Close monitoring of blood pressure is recommended.

Other Drug-Drug interactions:

  • Ketoconazole, itraconazole (used to manage fungal infection)
  • Protease inhibitors (used to manage HIV infection) Ex. ritonavir, lopinavir
  • Phenobarbital, phenytoin, carbamazepine (medicines used for fits)
  • Rifampicin, erythromycin, clarithromycin (medicines used for bacterial infections)
  • Other medicines used to improve blood flow to the penis (Ex. sildenafil)

B. Drug-Food Interactions:

Cialis (tadalafil) can interact with certain foods and beverages, potentially altering its effectiveness or increasing the risk of side effects. Here are the key drug-food interactions to be aware of:

  1. Grapefruit and Grapefruit Juice: Grapefruit can increase the levels of tadalafil in your blood by interfering with its metabolism. This may amplify side effects, such as headaches, dizziness, or low blood pressure. Avoid consuming grapefruit or grapefruit juice while taking Cialis.
  2. Alcohol: Drinking alcohol with Cialis can enhance the blood pressure-lowering effects of the medication, leading to symptoms like dizziness, lightheadedness, or fainting. Limiting alcohol intake is recommended while using Cialis.
  3. High-Fat Meals: While Cialis can be taken with or without food, consuming it with a high-fat meal may delay its onset of action. Opt for lighter meals if rapid effectiveness is needed.
  4. Caffeine: Though not a direct interaction, combining Cialis with high caffeine intake might worsen side effects like headaches or increase heart rate in sensitive individuals.
All key drug-food interactions are listed by Tier 3 interactions. To make an interaction aware list, be sure to include:

C.

Here are the key drug-food interactions:

D.

Here are the key drug-food Interactions:

: Grapefruit can increase the levels of tadalafil by interfering with its metabolism. This may amplify side effects like headaches, dizziness, or low blood pressure.

Copyright ©

. Originally published at

Viagra generic entry

The story of Viagra’s patents and generic entry of sildenafil citrate is a valuable one because it covers many of the nuances of drug patenting and generic entry in the United States.

This article will describe the multiple patents, patent term extension, pediatric extension, litigation, out-of-court-settlement, and authorized generic fighter brand elements which led to Viagra’s long patent life and limited early entry of generics, and Pfizer’s post generic-entry strategy to limit the impact of competitors.

Protecting Viagra with Multiple Patents and Patent Extensions

Viagra patent 6,469,012

was approved in 1998, and the original patent covering Viagra was, which received a 283-day patent term extension giving it an expiration date of March 29th, 2012. This 14-year patent life is longer than many other drugs, but Pfizer was able extend the patent-protected life even further.

The ‘534 patent was filed in 1990, and in 1994 (four years prior to Viagra’s launch) Pfizer filed a second patent:. Because the ‘012 patent was filed prior to June 8th 1995 its term is17 years from the grant date, rather than20 years from the filing date, which is how expiration is determined for patents filed after Jun 8th 1995. The ‘012 patent was granted on October 22nd, 2002, so the original expiration date was set to October 22nd, 2019 — more than twenty years after the drug’s launch. The patent’s expiration was extended to April 22nd 2020 because Pfizer responded to an FDA request to perform pediatric clinical trials, granting six months of “” protection.

Patent Challenges and Out of Court Settlement

Pfizer v. Teva – Viagra patents

Pfizer successfully defended Viagra’s patents in many over the years, but one lawsuit stands out. Despite prevailing in awhich affirmed the validity of patent 6,469,012, in 2013 Pfizer announced an, granting Teva a license to manufacture and sell genericstarting in December 2017, more than two years before Viagra’s patent expiration. Importantly, this was not a ‘‘ patent settlement, as Teva was required to pay Pfizer a licensing fee to produce the generic.

Launching an Authorized Generic to Fight Generic Entry

Revatio drug price

Generic drugs sell at a discount to the branded version, which hurts branded revenues, but there are things which brands can do to limit the impact. A popular tactic it to launch an. In this strategy the branded firm licenses a third party to market the branded drug under another name, compelling the generic entrant (in this case Teva) to compete in the generic market. The authorized generic for Viagra was and it was.

What About Viagra’s price?

Viagra price trends

Viagra’s 2016 US sales were approximately 1.2 billion, and in 2017 they dropped to less than $800 million. With increased competition from Teva and from Revatio, revenues are expected to keep dropping, and widespread generic competition from the many companies with will further-decrease Viagra sales. It appears that Pfizer is responding to increased competition by increasing Viagra’s price — the has been a general increase over time.

Lessons for Predicting Generic Entry

Viagra tentative approvals

The story of Viagra and the generic entry of sildenafil citrate illustrates the value of data and the need to continuously re-evaluate factors affecting generic entry. Reliance on the first patent would have vastly under-estimated the date of generic entry, and looking solely at the expiration date of the second patent would have missed the December 2017 generic entry. DrugPatentWatch offers the tools to continuously track patents covering drugs, litigations, tentative generic approvals, and other factors essential to making better decisions. For more information, and learn more about our.

Auckland. All rights reserved.

Uses

Tadalafil is used to treat erectile dysfunction (ED) in men.

How it Works

Tadalafil works by increasing blood flow to the penis. This helps to achieve and maintain an erection when sexually aroused.

Side Effects

Common side effects may include:

  • Headache
  • Flushing
  • Nasal congestion
  • Diarrhea
  • Back pain

If you experience any severe or persistent side effects, talk to your doctor.

IMPORTANT NOTE:The above information is intended to increase awareness of health information and does not suggest treatment or diagnosis. Please consult your doctor or another qualified healthcare professional before use. The original article has been cited by at least 5illion articles in years past. This material is not intended to diagnose or treat any specific medical condition. Before using, tell your doctor or another doctor you are taking Cialis or you may be taking any other medication. Tell any doctor or pharmacist who treats you that you are taking Cialis, to avoid counterfeit products. Without your doctor's permission, do not take this medication.