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Viagra and Headaches: What Users Say

Headaches: mentioned by 43 users (16.9%)

Based on user experiences from 254 Viagra reviews, the following table shows the most commonly mentioned side effects.

All user comments are moderated by Drugs.com. Each review is verified for relevance and screened for inappropriate content. Side effects are user-reported and not clinically verified.

headaches 16.9%
flushing 5.1%
runny nose 3.9%
stuffy nose 2.0%
tiredness 2.0%
blurred vision 1.2%
ejaculation problems 1.2%
heartburn 1.2%
increased heart rate 1.2%
skin issues 1.2%

Reviews for Viagra

Commonly mentioned side effects
  • Sat...
  • Taken for 1 to 2 years
  • July 6, 2016

For Erectile Dysfunction "My husband is 16 years older than me and was diagnosed with diabetes and ED. Active 46-year-old at a healthy weight. 6' tall and about 180 lbs. He used to take OTC herbal supplements, which worked with unreliable success, but he finally talked to the doctor and was given Viagra samples. He takes 50 mg at a time. The Viagra is much more reliable. He takes it right before foreplay and is rock hard right on cue 30 to 60 minutes later. Slight headaches sometimes but never enough to curb his appetite. Now his performance matches his desire, and we both have multiple orgasms. It definitely works best on an empty stomach or eating low-fat foods."

9 / 10
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218 Report
  • Bac...
  • Taken for less than 1 month
  • August 5, 2013

For Erectile Dysfunction "I'm 71 and still love sex with my wife. Sometimes I get distracted and lose partial erection, so I tried Viagra for the first time last night. This was after seeing my physician. OMG. We had drinks and dinner before going to bed. Took Viagra, and thirty min later was hard but only after being stimulated. I lasted until after I wore her out, not bragging, and I was able to make love again 30 min later. During the night after going asleep, I would get close to my wife and would get hard. I experienced this maybe 4 times during the night. I experienced some stuffiness and slight headache, but it was all worth it. Wow!"

10 / 10
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182 Report
  • Ste...
  • November 23, 2014

For Erectile Dysfunction "I'm 58. I have had issues with my erection for about 5 years now and rarely have sex. Took 50mg Viagra. All I can say is FABULOUS! Took about an hour to kick in but then lovely firm erections for a number of hours. Managed a number of ejaculations which was another bonus. Side effects were dizzy spell, very mild headache."

10 / 10
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179 Report

Frequently asked questions

  • Gwm...
  • Taken for less than 1 month
  • April 24, 2015

For Erectile Dysfunction "Been having some erectile dysfunction problems on and off this year, noticeable since November 2014. Decided to speak to my GP about it. Given Viagra, 50mg. Taken as needed just to get things kick-started again. Took it last night. Bit of flushing, a slight sore head but have had worse, even had one glass of wine an hour later. Action in bed - incredible. Rock-hard, large, could last a long time, enjoyable. Woke up again at 6 for round two - same again. And then another round at 8:30 am - same again. 12 hours later and if I get turned on, things are happening again. Seriously impressed and if it's got things kick-started again, then it's well worth it."

10 / 10
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130 Report
  • jaf...
  • Taken for 1 to 6 months
  • August 18, 2014

For Erectile Dysfunction "'Absolutely' amazing. 10 out of 10. Only mild headache as a side effect for approximately 4-5 hours. But this medicine is a miracle. I took 100 mg as a dose like 45 minutes before intercourse and it did wonders. We made love 6 times non-stop and I think we could continue. Saved my whole relationship. Owe that to Pfizer."

10 / 10
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124 Report

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  • fou...
  • February 3, 2011

For Erectile Dysfunction "At 96, I use it when my wife will let me, if you know what I mean! At my age, I will only buy 10 pills at a time. Don't want to leave any behind when I go! Works better before a meal or early in the morning. I have had headaches and loss of vision, but I'm on my last lap anyhow."

8 / 10
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144 Report
  • Ano...
  • November 12, 2013

For Erectile Dysfunction "My partner has ED occasionally. He was advised to try Viagra. It was effective after about 2 hours when he achieved a really veiny, stiff erection. This was a great improvement and lasted as long as we needed and again the next morning, however, the side effects were unpleasant flu-like symptoms (i.e. headache, sore throat, blocked nose, etc.) which lasted for many days after. For this reason and due to the high expense we will only use this on 'special occasions' from now on, until we find an alternative."

6 / 10
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136 Report

More FAQ

  • arm...
  • Taken for less than 1 month
  • December 9, 2014

For Erectile Dysfunction "I am a 30-year-old disabled Army veteran. Got my prescription of Viagra in the mail today from the Department of Veterans Affairs medical system. Took it around 10:45 PM and around 11:30 PM started to become flushed in the face and had a slight headache. But when it came down to business, it works great. I stay harder longer and don't go soft as quickly. I can satisfy my significant other with great pleasure now. I am glad I talked to my doctor about my erectile dysfunction. I never would have thought that the VA system would ever give the pill to veterans who have erectile dysfunction. But they do."

10 / 10
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154 Report
  • Big...
  • Taken for less than 1 month
  • October 4, 2014

For Erectile Dysfunction "I'm 59. Never had any issues with erectile dysfunction before. Five years ago, I experienced ED due to work stress. Tried Viagra and others and had the worst headache of my life. Tried it again a few months ago after starting testosterone replacement therapy. First, 10mg Cialis got me semi-hard to penetrate but didn't last long. Tried 50mg of Viagra last week and OMG! Felt like 19 years old. My wife loves it. I feel like a man again. Was advised by doc to also 'exercise' with a pump to improve blood flow. Six weeks later, I've grown in length and girth. It is crazy expensive but feel it's worth it now."

10 / 10
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145 Report
  • Mku...
  • Taken for 1 to 2 years
  • April 21, 2014

For Erectile Dysfunction "I'm a 28-year-old guy with erection difficulty, mostly I think from performance anxiety and just life anxiety too. I've taken Viagra when I need it for over a year now and it is AMAZING. It will give you firm and lasting erections an hour before taking it. I take 50 mg but find sometimes I take 75 mg if I know I'll have a longer night with the girlfriend. Now, it is expensive, even with insurance it costs about $30 per 100 mg pill. So splitting it would be $15 per 50 mg dose but it is SOO worth it being happy with my girlfriend. It has improved confidence in my sex life immensely, not always worrying if I can get and maintain an erection. The side effects for me (but manageable): stuffy nose, headache, bloodshot eyes, heartburn."

10 / 10
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103 Report
  • pet...
  • June 16, 2014

For Erectile Dysfunction "Having struggled for about 12 months to maintain an erection, my doctor recommended Viagra. Wow, minimal side effects - occasional headache, but that's because blood is rushing away from my head. The erections are like when I was 20. It takes effect after about 30 minutes, and my wife only needs to look at me, and I get hard. It's not lasting any longer, but the beauty is I can get hard 4 or 5 times over 3 to 5 hours, and again in the morning. We are in our late 40s, but we feel like 20-year-olds."

10 / 10
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107 Report
  • 65...
  • Taken for 1 to 6 months
  • January 15, 2016

For Erectile Dysfunction "I started having trouble getting and maintaining an erection so I asked my doctor about the problem. He prescribed Viagra, and it works great. One hour after taking 50mg, I get a beautiful erection, sensitivity is good, climax is wonderful. My wife loves it and climaxes every time, sometimes twice. Side effects can be a flushed skin about an hour in and sometimes a bit of a headache (not severe, but there). Two aspirin fix things. Wonderful product. Happy wife, happy life!"

10 / 10
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96 Report
  • Sec...
  • Taken for 6 months to 1 year
  • September 16, 2016

For Erectile Dysfunction "I am 46 and found that I was not consistently staying hard after prolonged sex or masturbating. My recovery time after orgasm seemed like days. I am not on any other medication, very active, and eat healthy. I also do not smoke or drink alcohol. I decided to bring it up and get a sample. I was pleasantly surprised! I did get a flush feeling that went away. Also, I might get a slight headache the next morning but can be cleared up by taking something. However, the benefits were solid erections when turned on. It also lasts, like others mentioned, into the next day but not as strong. Again, you must be turned on for this to work. If you are not attracted, in the mood, or desensitized/overworked then it may not work well."

8 / 10
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76 Report
  • Ano...
  • Taken for 1 to 6 months
  • July 22, 2013

For Erectile Dysfunction "My husband suffers from erectile dysfunction occasionally, which is mainly due to his anxiety. He was prescribed Viagra and takes 12.5mg with water and on an empty stomach. After about 1 hour, he gets a great erection which lasts for about 45 minutes. This is great for both of us. The side effects he experiences are a mild headache and nasal congestion, which lasts for about 6 hours. I would highly recommend this medication but would suggest taking time to find the best dosage to suit individual needs. We will continue with our current low dosage as this works very well for us."

9 / 10
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97 Report
  • Rad...
  • Taken for less than 1 month
  • December 23, 2013

For Erectile Dysfunction "Was struggling to maintain an erection for 3 months, took 50mg of Viagra, worked in under an hour and it worked, despite the fact I was very anxious. Only tried it 3 times but it works every time. It's gold and my erections were rock hard. My girlfriend said I was better than ever. Thank you Viagra for saving me. Side effects, headache but only once."

10 / 10
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95 Report
  • Fee...
  • June 20, 2019

For Erectile Dysfunction "I’m in my mid-40s and have not been able to perform for the past few years like I used to. My erections were not strong and would go away quickly before ejaculating. I decided to talk to the doctor about it and set an appointment. The conversation with the doctor was easy to have, and we spoke about the symptoms. He gave me a few options, and we decided on Viagra to start with. The doctor prescribed 100 mg. With generics now available, I was able to get 30 pills for about $26 from the pharmacy at my local grocery store. I had read reviews and learned about the headaches. I took my first pill with ibuprofen to avoid a headache. About an hour later, things were ready to go. Our first session was great, lasting about 30 minutes and lots of 'Wow's. About 20 minutes later, ready to go again for another 30 minutes. And about 30 minutes after the second session, my wife asked if I was ready for another session, which I was. The only side effect was the flushing, but it was not bad."

10 / 10
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61 Report
  • Pet...
  • Taken for 6 months to 1 year
  • May 3, 2018

For Erectile Dysfunction "I'm 71 and have been using Viagra or sildenafil for about a year. It is a wonderful drug, but getting the dosage right is critical. I can still get an erection without help, but it had become a bit unreliable. I started off taking half a 50 mg tablet. It certainly worked, but I felt it was just a bit too much. I now cut the tablet into 4 and find a quarter of a tablet makes all the difference and barely gives me any side effects. The half-tablet dose was too much for me. It gave a very strong erection but reduced the sensations and gave me a slight headache. So I reckon it's worth experimenting to find the minimum dose you can get away with. (NB the low dose works better on a reasonably empty stomach)"

10 / 10
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52 Report
  • sam...
  • Taken for 10 years or more
  • June 7, 2015

For Erectile Dysfunction "I was 50 and had ED when I met this young woman, initially did not know what was wrong as I could not perform and had to abandon the act with excuses. A month later, I was prescribed 50 mg and took it an hour before, and it worked fine as we both had a good time twice in one night. I was exhausted in the morning, had a slight headache, and felt heat on the body during the night but was fine the next morning. Since then, it has been 12 years as I am 62 now, and I have taken this miracle drug of 50 mg every weekend when we make love, and it works great. Even though I have controlled my BP drug medication, the last 12 years have been great with Viagra. I only hope it will help until I am 65 when I would probably say goodbye to sex."

9 / 10
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64 Report
  • Anonymous
  • August 12, 2009

For Erectile Dysfunction "Yes, I achieved good erections after about 40 to 50 minutes and yes, I could repeat the experience a week or two later; however, the side effects drove me away from it. Side effects: Annoyance, blue-tinted vision lasting about 2 hours. First, migraine-like headaches. No conventional medicines would relieve the pain, sensitivity to light, nausea, and lethargy. The most disturbing was difficulty swallowing for about 3-4 hours. I ended up switching to 'Levitra'. Only a mild headache and some other minor effects for 2-3 hours. Not quite as good of an erection though (80% to 90% as good)."

2 / 10
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84 Report
  • Anonymous
  • August 12, 2009

For Erectile Dysfunction "Yes, I achieved good erections after about 40 to 50 minutes and yes, I could repeat the experience a week or two later; however, the side effects drove me away from it. Side effects: Annoyance, blue-tinted vision lasting about 2 hours. First, migraine-like headaches. No conventional medicines would relieve the pain, sensitivity to light, nausea, and lethargy. The most disturbing was difficulty swallowing for about 3-4 hours. I ended up switching to 'Levitra'. Only a mild headache and some other minor effects for 2-3 hours. Not quite as good of an erection though (80% to 90% as good)."

2 / 10
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84 Report
  • Ped...
  • Taken for 6 months to 1 year
  • May 18, 2024

For Erectile Dysfunction "I'm in my early 50s and have found it difficult lately to achieve an erection. So, I started on sildenafil 25mg but this didn't work for me, so I increased the dosage to 100 mg. I found it best to take a couple of hours before going to bed. After some foreplay, I was rock hard and my wife and I had hard, vigorous sex for over an hour. I had an explosive orgasm and I was able to carry on until she came. My penis was bigger and thicker than normal, and after 20 minutes, I was rock hard again, and we had sex again. I found it difficult to reach orgasm the second time, but my wife wasn't bothered as she came twice. We went at it for ages, was hard all morning, and we had sex on and off. The only side effect I experienced was a slight headache, but I just took some paracetamol. This medication has really boosted my confidence, and my wife is delighted. I have also cut the tablet in half lately, and this is satisfactory. Oh, and take it on a completely empty stomach for best results."

10 / 10
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9 Report
  • Ant...
  • Taken for 1 to 2 years
  • October 2, 2018

For Erectile Dysfunction "I'm 48, and I don't have any problem getting an erection, I still fancy my wife very much. The issue I have is maintaining it, then it became a psychological problem. I've been on this amazing drug now for over a year, and it works very well for me. In fact, I love the intense erection it gives me. Yes, I get facial flushing and a slight headache, but ibuprofen sorts that out. If nothing else, I oddly like the flushing now. It makes me feel ready... I started on 50mg and then took myself up to 75mg as I felt it was not as intense as it used to be. For me personally, it takes about 1.5 hours to kick in. I love it!!!"

9 / 10
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54 Report
  • Joh...
  • Taken for 1 to 2 years
  • November 13, 2016

For Erectile Dysfunction "I started with 100, then cut them in half. Last night I tried half of the 50. Found that 25 mg worked even better. I am in my 70s, and the milder dose gave little flushing and no headache. Much cheaper when you get 4 for 1."

10 / 10
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53 Report
  • fol...
  • Taken for 1 to 6 months
  • September 25, 2018

For Erectile Dysfunction "This is an absolutely fantastic medication, has vastly improved intimacy and sex with partner, self-confidence and self-esteem. I was hard enough to penetrate but would lose erection, and this, while partner was fully supportive and patient, would cause upset and tension, sex was not a pleasant experience. Now, fantastic, having fun with my partner again, have a fully hard and lasting erection. Can sometimes delay climax but not to the point of becoming a problem. Have had minor headaches and flushing but nothing major, I can find it difficult to orgasm, as I mentioned above, but again it's just being patient. My relationship is fantastic now, and I feel like a proper man again. As I didn't before. Don't want to have to use this forever, though, but will continue to use this for a few months. Can be a little frustrating in the sense that you don't always know when you and your partner are going to have sex, as obviously unplanned sex is more fun rather than being 'planned,' which can be a little strange."

10 / 10
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43 Report
  • str...
  • December 9, 2011

For Erectile Dysfunction "I'm 48, and it makes me feel 20 again 'down there.' I take 25 mg on an empty stomach, pre-dissolved in water, and it works in 10 minutes. Side effects have been very mild: stuffy nose and an occasional light headache. It allows me to be very effective for about 4 to 6 hours with a quick recovery time. This is a great medicine, but don't overuse it. Taking it every day is not as sweet as once or twice a week."

10 / 10
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67 Report

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Reviews may be edited to correct grammar/spelling or remove inappropriate content. Reviews appearing to come from parties with a vested interest are not published. This information is not intended to endorse any medication and should not replace the expertise and judgment of healthcare professionals.