Viagra 150 mg (Sildenafil Citrate) Tablet

Manufacturer	Centurion Laboratories
Active Ingredient	Sildenafil citrate
Starts In	30 minutes to 1 hour
Last Long	Up to 4 to 5 hours
Type	Erectile Dysfunction

How It Works

Viagra 150 mg contains the ingredient Sildenafil Citrate which relaxes the muscles present in the walls of the blood vessels. It works by increasing blood circulation to specific areas of the body, including the penis. When a person is sexually stimulated, Nitric Oxide is released into the penis. Nitric Oxide is responsible for the production of cGMP that controls the dilation and contraction of blood vessels. An enzyme known as PDE 5 destroys cGMP. Viagra 150 mg blocks the action of PDE 5 and allows cGMP to be produced properly. This allows the blood to flow easily to the penis. As more and more blood flows to the penis, pressure is created. Thus, an erection is achieved.

Uses

Viagra 150 mg is prescribed for the treatment of the following problems:

1. Erectile Dysfunction (ED) – a condition that causes an inability to achieve or sustain an erection making it difficult to have sexual intercourse.
2. Pulmonary Arterial Hypertension (PAH) – high blood pressure that affects the arteries in the lungs and the heart.

Dosage

A single tablet of Viagra 150mg is recommended to be taken orally once per day. It can be taken with or without food. It should be taken approximately 30 minutes to 1 hour before any sexual activity. The effects of the medicine last for around 4 to 5 hours.

Missed Dosage: This medicine is consumed as and when required. Therefore, the chances of missing a dose are very less. If you are taking this medicine for the treatment of Pulmonary Arterial Hypertension (PAH), you should take the missed dose as soon as possible. If it’s time for your next dose, skip the missed dose. Do not take an overdose or a double dose to make up for the missed dose.

Overdose: An overdose can lead to serious side effects. If problems persist for long, contact your doctor immediately.

Important Advisory

Before you take Viagra 150 mg, tell your doctor:

1. If you are allergic to certain medications.
2. If you take nitrates for chest pain.
3. If you have a medical history of stroke, heart attack, irregular heartbeat, and chest pain.
4. If you suffer from epilepsy or seizures.
5. If you suffer from diseases such as diabetes, hypertension, etc.
6. If you have a physical deformity of the penis or Peyronie’s.
7. If you have a retinal disorder such as retinitis pigmentosa.
8. If you have blood circulation problems.

Side Effects

Common side effects of Viagra 150 mg include:

1. Nausea
2. Vomiting
3. Motion sickness
4. Palpitations
5. Dizziness
6. Flushing
7. Headaches
8. Diarrhea
9. Nosebleed
10. Indigestion

In some rare cases, conditions such as Priapism (a prolonged erection of more than 4 hours) and NAION (sudden vision loss in one or both eyes) can occur.

Drug Interactions

You should tell your doctor if you take any form of herbal, OTC, recreational, or any other form of drugs. These drugs can affect the way Viagra 150 mg works.

1. Alpha-blockers such as alfuzosin, doxazosin, prazosin, tamsulosin, and terazosin
2. Amlodipine
3. Antifungal medications such as itraconazole and ketoconazole
4. Blood thinners such as warfarin
5. Cimetidine
6. Antibiotics such as erythromycin and clarithromycin
7. Efavirenz
8. Beta-blockers such as atenolol, labetalol, metoprolol, and nadolol
9. HIV Protease inhibitors such as atazanavir, indinavir, darunavir, fosamprenavir, lopinavir, saquinavir, and ritonavir
10. Medications for seizures such as carbamazepine and phenytoin
11. Other medicine for Erectile Dysfunction
12. Medications for blood pressure

Interaction with alcohol

Alcohol is known to increase the chances of experiencing side effects. Avoid consuming alcohol alongside this medication at all costs.

Storage Instructions

Viagra 150 mg pills should be stored safely in their original packaging.

1. Keep the pills away from direct moisture and light.
2. Do not store the pills in the bathroom.
3. Keep the pills away from the reach of children and pets.
4. Store in a cool, dry place, under controlled temperatures as mentioned on the packaging.

Substitutes Available

Frequently Asked Questions (FAQs)

How many pills of Viagra 150 mg can I take daily?

A single dose of Viagra 150 mg is recommended to be taken in 24 hours. It should not be taken more than once in 24 hours.

How long do the effects of Viagra 150 mg last?

The effects of Viagra 150 mg can last for around 4 to 5 hours.

References

• Drugs H. Sildenafil: MedlinePlus Drug Information [Internet]. Medlineplus.gov. 2022 [cited 2022 Oct 2]. Available from: https://medlineplus.gov/druginfo/meds/a699015.html
• Irwin GM. Erectile Dysfunction. Prim Care. 2019 Jun;46(2):249-255. doi: 10.1016/j.pop.2019.02.006. Epub 2019 Apr 1. PMID: 31030826. Available from: https://pubmed.ncbi.nlm.nih.gov/31030826/
• Fink HA, Mac Donald R, Rutks IR, Nelson DB, Wilt TJ. Sildenafil for male erectile dysfunction: a systematic review and meta-analysis. Arch Intern Med. 2002 Jun 24;162(12):1349-60. doi: 10.1001/archinte.162.12.1349. PMID: 12076233.  Available from: https://pubmed.ncbi.nlm.nih.gov/12076233/
• Chew KK, Stuckey BG, Thompson PL. Erectile dysfunction, sildenafil and cardiovascular risk. Med J Aust. 2000 Mar 20;172(6):279-83. Erratum in: Med J Aust 2000 May 15;172(10):511. PMID: 10860094. Available from: https://pubmed.ncbi.nlm.nih.gov/10860094/