Sildenafil Citrate Liquid: Only For Laboratory and Research Use

Published by Vic Froelicher on

Sildenafil in liquid form is not for human use and is only used for research and laboratory purposes. This form of Sildenafil is not made for any kind of oral administration or intravenous use and may be fatal if used. Liquid Sildenafil is sold by chemical manufacturers and not by pharmacies meaning it has not been tested on humans and is unsafe. This product is also without the approval of the Food and Drug Administration and is only sold to chemists and researchers.

Most people are familiar with Sildenafil Citrate as the brand name Viagra, a medicine that is orally taken in hard pill form. This drug is also known as the Phosphodiesterase type 5 enzyme (PDE 5) inhibitor that works in the body by dilating the blood vessels for easier blood circulation. It relaxes the muscles controlling the tension in the blood vessels enlarging them temporarily for a more fluid movement of blood inside the bodies.

Erectile Dysfunction is the main health condition that this drug is made for. ED is more common than we think as it affects half of the population of men older than 40. Younger men begin to be affected as well due to various factors that affect the body such as illnesses, substance abuse, depression, stress, anxiety, obesity and many others. In this condition, males can no longer achieve the normal erectile response of the penis making it limp. This makes it impossible for the affected men to make love to their spouses causing many relationship problems, adding to the emotional and the psychological stress that men experience. Because of this kind of stress, many men fall victim to smoking and alcoholism which makes the body more incapable of recovering from impotence.

Fortunately, Sildenafil has already been formulated to help men overcome ED. To enable men to have erections again, Sildenafil improves the blood flow to the penis and with the aid of sexual stimulation, the penis will respond easily with an erection. To make the erection is strong and lasting, Sildenafil ensures that there is a constant blood flow to the penis so that it won’t run out of juice. Sildenafil works for as fast as 1 hour after ingestion and since its effects last for 5 to 6 hours, the patient would be able to enjoy their erection much longer.

Sildenafil Dosage

The dosage of Sildenafil to be taken by the patient is determined by a physician and not by the patient himself. Viagra has three dosage strengths which are 100mg, 50mg, and 25mg. Depending on the patient’s condition will the doctor choose what dosage the patient should take. The patient’s tolerance for the drug is also a factor to consider because even though they need larger doses for ED but their body can take only small doses, they have to start small until their body gets used to the medication.

Viagra 50mg (Sildenafil)

The medical history of the patient should also be accounted for, for the doctor to avoid any complications or adverse effects of the drug to the patient’s health. Sildenafil is also not taken daily and only when needed. The side effects of this drug include headaches, vision changes, dizziness, cold sweats, palpitations, vomiting, diarrhea, chest pains, back pains, muscle pains and nausea. These side effects usually disappear as the medication mellows down in cases of severe manifestations of these side effects, call for emergency help immediately.

Sildenafil Uses

Because of its hypotensive effects and its properties as a vasodilator drug, Sildenafil is also used for the treatment of Pulmonary Arterial Hypertension. PAH is a very rare health condition that only affects 50 people in a million. In this disease, the thickened and narrow pulmonary arteries are hindering the smooth blood flow from the heart to the lungs which causes the heart’s muscles to be overworked. The lungs also don’t get the sufficient amounts of oxygen that it should be getting from the blood because of the weak flow of blood. This difficult health condition causes chest pains, shortness of breath, dizziness, and swelling in the patient’s body. The causes of it are unknown but Pulmonary Hypertension commonly stems out as a complication of other illnesses such as heart disease and other pulmonary diseases.

Sildenafil helps provide relief to the patients by dilating these affected arteries allowing a more fluid flow of blood that will ease the high blood pressure, relieve the overworked heart muscles and bring the right amounts of oxygen to the lungs from the blood.

Sildenafil 20 mg Dosage

Revatio is Pfizer’s Sildenafil product specifically made for the treatment of PAH. Unlike Viagra, its dosage strength is already at the maximum of 20mg, just the right amount of dosage for the PAH patients.

Revatio 20mg (Sildenafil)

Revatio also has smaller dosages of 10mg and 5mg for patients who only require very small amounts of Sildenafil. If Viagra should only be taken once every 24 hours and only when needed, Revatio is taken three times a day in a specified dosage with intervals of three hours in between doses. This is to keep the Pulmonary Hypertension in check and to give continuous relief to the patient.


The use of liquid chemical Sildenafil Citrate is strictly limited to laboratory and research use and should in no way be ingested or injected intravenously as a medicinal application. Using this product outside of its intended use can cause serious health repercussions which could be lethal. Patients should stick to using the Sildenafil brands that their doctors have prescribed to ensure their safety and continuous recovery. Oral Sildenafil is FDA-approved and can be purchased locally or online where it’s much cheaper. For the safe purchase of medicines online, customers should check our Top List of Recommended pharmacies to get only the best products and only the best prices.

Categories: Sildenafil

Vic Froelicher

Vic Froelicher

A Professor of Medicine who started his cardiology career at the USAF School of Aerospace Medicine performing cardiac screening of pilots, astronauts and military athletes. He is an international expert in clinical exercise physiology, ECGs, screening and the exercise sciences. He is a co-author of the textbook “Exercise and the Heart. Since 1992, he has been the major consultant to Stanford Sports Medicine and participated in the pre-participation exam of all Stanford athletes and professional teams in their care.

Clinical Researcher, Cardiacinsight, Inc
Director Sports Cardiology Clinic Stanford Health care orgainization / Jan 2015

CMO. Developer of software and hardware for screening for cardiovascular risk.
Cardea Associates, Inc / 2012

Stanford University
Cardiologist / 1992

Department of Veterans Affairs / 1982


University of Alabama
Cardiology Fellowship

University of Pittsburgh
Doctor of Medicine (MD)