Most reports assessed the efficacy of VIAGRA approximately 60 minutes put up dose. The erectile reaction, as assessed by RigiScan®, normally amplified with increasing sildenafil dose and plasma focus. Enough time study course of effect was examined in a single examine, exhibiting an effect for as much as 4 several hours nevertheless the response was diminished as compared to two several hours.

The data down below describes dosages that are generally utilized or advised. But be sure to go ahead and take dosage your medical professional prescribes in your case. They’ll identify the most beneficial dosage to suit your demands. Occasionally, Physicians might regulate your dosage from All those revealed down below.

Bear in mind, you should not transform your dosage of Viagra devoid of your health care provider’s suggestion. Only just take Viagra specifically as prescribed. Talk with your physician Should you have issues or worries regarding your current dosage.

You’ll get Viagra by mouth about 1 hour right before sexual activity. It is best to swallow the pill total.

When you've got questions on drug interactions that will impact you, talk to your medical professional or pharmacist.

But a uncommon facet result of Viagra is swelling of your genitals, which include your penis. This will make your penis glance greater, even though you’re not sexually stimulated. Tell your medical doctor In case you have swelling within your penis with Viagra.

Nitrates are also present in some recreational prescription drugs for example amy nitrite ("poppers"). Having sildenafil with a nitrate medicine might cause a sudden and critical minimize in website blood pressure.

In the four subjects who been given VIAGRA one hundred mg in the 1st component of this examine, a extreme adverse celebration connected to blood pressure level result was documented in a single affected individual (postural hypotension that started 35 minutes just after dosing with VIAGRA with symptoms lasting for eight hours), and delicate adverse functions perhaps connected to blood pressure level effects were being documented in two Other people (dizziness, headache and tiredness at one hour immediately after dosing; and dizziness, lightheadedness and nausea at 4 hrs after dosing).

Allergic response. When you’ve had an allergic response to Viagra or any of its substances, your doctor gained’t prescribe Viagra.

Stomach ulcers. Should you have a tummy ulcer, taking Viagra may well raise your chance of bleeding in your belly. Make sure you convey to your medical doctor Should you have a tummy ulcer prior to getting this drug.

Also explain to them about any supplements you take. Because caffeine, Liquor, the nicotine from cigarettes, or Road prescription drugs can have an affect on the motion of many prescription drugs, you need to Permit your prescriber know if you make use of them.

Vision troubles/eye conditions: For those who practical experience a sudden loss of eyesight in one or both eyes or other vision-linked troubles, Get in touch with your health care provider immediately. Eyesight reduction might be partial or comprehensive. Though in some instances the issue may well increase as time passes, it can also be long term.

Examination of the security databases from controlled scientific trials showed no obvious difference in adverse reactions in sufferers getting VIAGRA with and with no anti-hypertensive medication.

Before you begin Viagra or another medications, convey to your doctor about every other medicine you take. Your health practitioner can tell you if you will find any interactions that will take place.