Sildenafil and Headaches: What Users Say

• Ano...
• Taken for 6 months to 1 year
• June 10, 2025

Sildenafil for Erectile Dysfunction "I am 68 and had begun to have inconsistent erections or would lose it during intercourse. My wife and I decided to bring it up with my doctor who prescribed Viagra. It has worked very well. I take it an hour after dinner. Within an hour I am ready to go with rock-hard erections. I am also able to last longer. My wife has loved it. Perhaps the best sex of our lives, even after having 5 children! Side effects have been minimal and seem to be subsiding from a little flushing, stuffy nose, and slight headache."

• Rhe...
• March 30, 2025

For Erectile Dysfunction "This is a good medication that is mild with side effects. Just a bit of a flush feeling to the face once in a while, slight headache. Overall, I need 25 mg, and I’m hard enough for sex. Thanks for having integrity and ethics to make it safe for everyone but effective."

• Hen...
• Taken for less than 1 month
• October 22, 2024

For Erectile Dysfunction "I'm a 59-year-old stage 2 prostate cancer survivor who finished my cancer treatment regimen in March 2023. Beginning January 2021, I was on leuprolide shots every 4 months and daily abiraterone with prednisone chaser, so my testosterone was completely shut off, including losing all interest in sex. Four months ago, I finally started noticing a small return of my libido, but my free testosterone levels are still far below the standard range. Two months ago, I began a new relationship with a woman: our first sexual contact was extremely nice, but I was unable to stay hard. She gently suggested looking into Viagra, which I happily did. My urologist agreed and prescribed 40 mg (two 20 mg pills) as needed. I 'test-drove' it at 20 mg, with marginal results. I tried the full dose 2 days ago on an empty stomach, and it worked like crazy! We both were very happy. A tiny bit of dizziness and a small headache the next day, but breakfast took care of that. If you need the boost, I recommend it 100%."

• Mhw...
• Taken for less than 1 month
• June 1, 2024

For Erectile Dysfunction "I am 37, and my wife and I have been married for 15 years this year and dated for 2 years prior to that. She is incredible and even more attractive to me now than when we met. A couple of weeks ago, I noticed I was going soft during sex, and it then went from bad to worse over the next subsequent sessions. She was very patient, and I told her it was me, not her. I went to the doctor, and he gave me a prescription of sildenafil 100 mg tablets to get my “confidence back”. I used a dose of 50 mg and after taking it an hour and a half after eating dinner, I was hard within 5 minutes just by the sight of her. I felt hard and fuller for the 2.5 hours we stayed up. I didn’t have to worry about my erection being lost. I did feel it harder to ejaculate after the first time, and I was able to have sex again in the morning and later the next day without another dose. My sex life went from a 10 to 15 overnight. The only side effect was a slight headache, but nothing painful which would require pain medication."

• Hap...
• Taken for 1 to 6 months
• May 24, 2024

For Erectile Dysfunction "At 64, I had not lost the ability to get an erection but could not always maintain it during sex, or get hard enough for some positions. I got a script for generic 50mg. I tried it twice, split to 25mg. I wanted to test for side effects. The 25mg helped me get a little harder but helped more with recovery time (I was able to go again almost immediately). The 50mg though was like being young again, full upright erection and able to keep hard right through an orgasm, and as much as I wanted and from every position. I’m convinced! Slight side effect of facial flushing at 50mg but not a lot. Also had a headache later (about an hour or two after half-life)."

• Ped...
• Taken for 6 months to 1 year
• May 18, 2024

Sildenafil 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."

• Joe...
• Taken for 1 to 6 months
• September 27, 2021

For Erectile Dysfunction "I am 48 years old and diabetic. I used to be a stud in bed, then I settled down, got married, and started eating more. My blood sugars were up and down, so I was not able to get hard anymore, and my wife said my penis shrank! I get 100 mg T-shots on Tuesday and started taking Sildenafil 50 mg. So on a good day, when my blood sugar is stable, I have to take 2 pills because they take time to kick in. But when I get hard, we have great sex. Then a little bit later, ready to go again. But the bad thing: I get bad headaches, my heart races, my stomach hurts, and I have to run to the toilet. And when you're married and they're in the bathroom, you can't get in right away, it can be tragic."

• 40g...
• Taken for less than 1 month
• September 5, 2021

For Erectile Dysfunction "Just tried sildenafil this weekend. I’m a 40-year-old who has gone through rectal cancer. Although I can still get an erection, they weren’t as firm or long-lasting over the last couple of years as they used to be. Cut a 100 mg pill in half and decided to dissolve it under my tongue to encourage a quicker response. I was a bit skeptical as to how well it would work. I’m not anymore. Only half an hour after the pill dissolved, I could achieve an erection on demand without any physical stimulation. Just thinking of something did the trick. I’ll be honest, I can’t remember the last time just a thought got me fully hard and maintained my erection. So extremely happy with the results. I’ve also noticed the effects seem to remain into the next morning as I’ve woken up with morning wood that I was having problems getting rid of. Did notice a stuffy nose and slight headache, but nothing major at all."

• men...
• Taken for less than 1 month
• April 6, 2021

Sildenafil for Erectile Dysfunction "I was given a sample of Viagra by a doctor years before I had any need -- just for fun. He gave me four. I took one and got the worst splitting headache I've ever had. Although I was in bed, nothing sexual happened. My head hurt way too much."

• Kan...
• July 6, 2020

For Erectile Dysfunction "I'm 54 and was good in sex until 53, and later I saw because of work stress and other life stresses and big gaps in the sex made my erectile dysfunction, and I believe one more reason when I was taking some medicine to control my blood pressure, those medicines also affect my sex process. I decided to start Viagra (Sildenafil) 60 mg in June 2020, and it worked well. Within two hours, it started working, and that goes up to four hours. No major side effects. So far, each time I see a little sinus, and then it goes away in 12 to 18 hours, and maybe very minor headache the next morning. In one month, I completed 10 episodes, it worked great with two to three days' gaps. I am also focusing on natural stuff which helps, like goat milk with almonds and other nuts, and reducing work stresses and unnecessary life stresses as well. Hope it will help you to understand my experience."

• Chr...
• Taken for less than 1 month
• November 19, 2019

"I started the 30 mg Viagra last evening for Raynaud's, which causes blood vessels in certain areas to be constricted. In my case, hands and feet. I am a female and had to wait nearly a week to get it approved by my insurance, even after my PCP stated it wasn't for ED. I had a severe headache about 20 minutes after, followed by GERD and muscle pain. The headache resolved in an hour. I went to sleep with really tender breasts that still hurt the next day. I felt a bit flushed all over and had color to my cheeks for about an hour. One dose was too soon to tell if it will work for my condition, but I do not think I will take it again."

• Mic...
• Taken for 6 months to 1 year
• October 24, 2019

For Erectile Dysfunction "I've used Kemagra and Sildamax 100 mg 10-15 times now, and almost every time I got a positive effect from the pills. They got me the help I needed, and I was amazed every single time! Yes, there were some side effects from the drug, but nothing I couldn't live with. Of course, the first time was a bit scary, but as long as I knew what it was and why, then I didn't worry about it. One time when I tried it, I got a headache after our sexual intercourse, but I got rid of it by having an erection and sex one more time. So my experience is only positive, side effects or not! I can easily live with a blue-tinted vision in a couple of hours when I think about the help the drug gives me and what it means to me and my self-esteem!"

• NJ_...
• Taken for less than 1 month
• September 13, 2019

For Erectile Dysfunction "I am 64, with a stent that was put in following a heart attack. I was experiencing ED and was hesitant to use sildenafil until I had, in my mind, stabilized through exercise and dosages of medications. Once I was ready, I started by taking a 25 mg dose (approximately, cut a 100 mg pill down) that had almost no effect. I gradually increased the dosage in 25 mg steps, each having more of an effect until I reached 100 mg. BAM! My wife was shocked/delighted to see it coming back up 5 minutes after we stopped. It was like I was 20 again! The side effects were minimal: slightly stuffy nose, lower backache the morning after (could have been from a dramatic increase in using those muscles), very slight headache (drank a lot of water to cure it), flushed. None of the side effects outweighed the sensation of dopamine being released, though."

• Fee...
• June 20, 2019

Sildenafil 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."

• Ian...
• Taken for 6 months to 1 year
• June 11, 2019

For Erectile Dysfunction "I’m 53 years old and in relatively good shape. I’ve been taking generic Viagra for about a year to help with the occasional erection issues. It works. I have the 100 mg pills that I break in half for a 50 mg dose. Always take the pill on an empty stomach, at least a solid 30-45 minutes before it’s time to get busy. It will not provide an instant hard-on, as you’ll need to be sexually aroused for it to work. It works great for me. Bigger and thicker, and my refractory period went from hours to about 15 minutes. It might just be me, but sometimes I think it’s still in my system 24 hours later. I get my pills online. SIDE EFFECTS: They are real. For me, it’s a rapid onset of stuffy sinuses (but not a runny nose), and a pretty bad headache in about 30 minutes. Left untreated, my headache would last for hours. So I always take a couple of Aleve at the same time I take the pill."

• Sti...
• June 8, 2019

For Erectile Dysfunction "Late fifties, though I could still get an erection, it could disappear at the drop of a hat. Maintaining it required a lot of focus. Spoke to my doctor, and he prescribed 50 mg sildenafil. At the local pharmacy, the cost was very high. I eventually found a legit-seeming U.S. online pharmacy. You fill out a form describing your symptoms and overall health, and they have a doctor on staff who will prescribe. They give you some input into dosage, so I chose 60 mg, which was close to what my doc had already prescribed. My 60 mg dose comes as three 20 mg tablets. For me, just one 20 mg tab works great. I occasionally take a second if I want to be super ready. So I get 3X the doses out of my script. I usually have no side effects, although I've noticed flushing and a headache once or twice - it's always been very mild. The dose takes 15 or 20 minutes to really kick in. Effects last up to 12 hours for me."

• Ano...
• Taken for less than 1 month
• May 16, 2019

For Erectile Dysfunction "Started with 20 mg, within 30 minutes, I had hot flashes and was sweaty. I’m not sure if it was this or not, but I could tell my anxiety was up, and my throat felt tight. This went on for about 90 minutes, there would be no way I could even think about sex during this part. The next thing I found surprising: this sent me straight to the bathroom. I haven’t read anything about this, but it seemed like I had taken a laxative. About 2.5 hours in, things seemed to be subsiding, so I decided to start stimulation. I can say that I probably had one of the better erections in quite some time, but if I was with someone, I don’t know that we would both be 100% okay with it. I did my thing, and about an hour later, I was erect again. I did wake up with a slight headache, and I didn’t sleep the greatest throughout the night. The other thing I found odd: about 18 hours in, I started to have little pings in my chest. About 24 hours later now, I’m just super fatigued."

• Old...
• Taken for 5 to 10 years
• April 11, 2019

Sildenafil for Erectile Dysfunction "I'm 72 years old and first used sildenafil 7 years ago after a family tragedy 'killed' my libido for about a month. On restarting sex, only a soft erection was possible and no penetration. I got prescribed sildenafil 50mg, and right from the first use, it was very successful and took away the anxiety. Have used this ever since and am always very hard and capable of any penetration. Facial flushing/slight headache, only side effects. Now use 75mg dose and wait 90 mins to make sure if I had some alcohol."

• Raj...
• Taken for less than 1 month
• April 1, 2019

For Sexual Dysfunction, SSRI Induced "Doctor prescribed me a 50 mg dose, and it is effective. I only face a mild side effect of headache for one day. I don't use it regularly, as I am worried it may be dangerous for my health."

• Lou...
• Taken for less than 1 month
• March 13, 2019

For Erectile Dysfunction "Sildenafil is amazing. I took 80 mg the first time, and my wife and I could not believe how hard it was. After the third time, my wife said it felt too hard and asked me to start taking less of them. So it’s working great for me. I only got 30 but might have the doctor prescribe me more. I got a slight headache, but it's worth it."

• Jon...
• Taken for 2 to 5 years
• January 2, 2019

For Erectile Dysfunction "I am 75 years old, in good health, and have been taking generic Viagra 100 mg for 5 years with great results. Side effects are flushing, headache, vision (everything seems brighter and whiter). Alcohol is a definite no! I can achieve an erection up to 24 hours after taking the medication. I have tried Cialis, which works equally as well but has additional side effects such as pain in the thighs and back. Definitely recommend taking Viagra for a fulfilling sexual experience!"

• Fls...
• Taken for less than 1 month
• December 22, 2018

For Erectile Dysfunction "I am 54 years old with ED. I recently tried sildenafil 20 mg for the first time. It is amazing how well it works for me. My erections are like they were when I was much younger. It enables us to have intercourse again. The strange part is it does not cause an erection on its own. You have to be aroused. The erection goes away after ejaculating. I am only mad that I waited so long. The only side effect I noticed is a dull headache. Not bad, and well worth it."

• Sag...
• Taken for 1 to 6 months
• December 14, 2018

For Erectile Dysfunction "Stuff is amazing. I have a really high sex drive, and my wife is 10 years younger. I'm 48 and have regular erections, but not like I did in my 20s. Honest to God, this stuff makes me feel 20. I take 3 of the 20mg pills about 1.5 hours before sex. Omg, I can go forever, rock hard, multiple positions, you name it. I do get the flushing of the face and a headache, but don't notice it during sex. I feel it afterwards, but who cares."

• Bob...
• Taken for less than 1 month
• December 11, 2018

For Erectile Dysfunction "I am 63 and have experienced mild ED symptoms for a couple of years. Usually, just occasional inability to maintain an erection. Finally tried sildenafil a couple of times. Honestly, I was amazed at the difference. I assume my ED has been encroaching for a while now without me being aware. I guess I didn’t really notice the decline until it became a problem. After 2 times taking one 20 mg tablet, I am sold. Only took it 30 minutes prior. This was the best sex I can remember having in the last 20 years. Really hard erection. It was like being a teenager but actually knowing what I’m doing. Lasted much longer, but incredible orgasm. Side effects were minimal. Both times I woke up a few hours later with a mild headache and a stuffy nose. Took ibuprofen and a Benadryl, and all was good. This was something that I wish I had tried years earlier."

• red...
• Taken for 5 to 10 years
• October 3, 2018

For Erectile Dysfunction "Tried lower doses, but the 100 mg seems to be the amount needed for me. Main issues for me are the side effects of stuffy sinus and dull headache. I take an antihistamine for the nose and a couple of Advil for the headache, and it does the trick."