Sildenafil is a much cheaper alternative to what’s commonly known as Viagra. Sildenafil Citrate is the active ingredient in Viagra. The main difference between the two is the pricing with Sildenafil being the cheaper.
You can obtain a prescription for Sildenafil after completing a short online health questionnaire, which is then assessed, and if you’re suitable, a prescription will be issued.
Typically, Sildenafil takes 30-60 minutes to work and is best taken on an empty stomach, which speeds up its absorption into the body. However, users can take it up to four hours before having sex. Please note, it only works if you’re sexually aroused, taking Sildenafil alone won’t give you an erection. (1)
Only one tablet should be taken within 24 hours. Interestingly, an erection can be achieved, for up to six hours after taking the medication, as long as you’re sexually stimulated. The resulting effect depends upon a person’s age, general health, and alcohol consumption. Sildenafil’s effects will lessen if taken with alcohol. It should be taken with a glass of water or juice, but not grapefruit juice since this may increase the likelihood of experiencing side-effects such as nasal congestion, facial flushing and headaches. (1,2,3)
Generally, not everyone suffers from any side-effects but it’s always important to read the patient information leaflet that comes with the medicine just in case. The most common side effects are dizziness, headaches, facial flushing, and nausea. However, many men have no side effects or just mild ones. If you’re taking nitrates for angina(chest pain) or the recreational drug called “poppers”, you should not take Sildenafil. (1, 2)
The active ingredient in Sildenafil is Sildenafil citrate, and it commonly comes in either 25mg, 50mg or 100 mg tablets. The recommended starting dose is 50mg Sildenafil tablets, which can be increased to 100mg depending on its effects. Sildenafil is also prescribed for pulmonary hypertension but in lower doses. (2, 3, 4)
1. NHS Sildenafil (including Viagra) [cited 22 January 2019]. Available at: https://www.nhs.uk/medicines/sildenafil-viagra/
2. National Institute for Health and Care Excellence (NICE) Sildenafil. Available at: https://bnf.nice.org.uk/drug/sildenafil.html
3. Electronic Medicines Compendium (EMC) Sildenafil citrate [cited 18 August 2017]. Available at: https://www.medicines.org.uk/emc/product/7141/smpc
4. National Institute for Health and Care Excellence (NICE) Sildenafil Tablet. Available at: https://bnf.nice.org.uk/medicinal-forms/sildenafil.html