Vardenafil and Fertility: Does It Affect Conception?
Learn whether vardenafil impacts male fertility and how to use ED treatment safely when trying for a baby.
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Published: 9 November 2026
Vardenafil and fertility is a common concern for men taking this erectile dysfunction medicine while trying to conceive. The good news is that current evidence does not suggest vardenafil negatively affects male fertility, sperm quality, or the ability to father a child [5]. Vardenafil is a PDE5 inhibitor that works by improving blood flow to the penis during sexual stimulation, and it does not interfere with sperm production or function in the testes.
At a glance
How Vardenafil Works and Why It Doesn't Harm Fertility
Vardenafil belongs to a class of medicines called phosphodiesterase type 5 (PDE5) inhibitors, which also includes sildenafil (Viagra) and tadalafil (Cialis) [5]. These medicines work by relaxing blood vessels in the penis, allowing increased blood flow when you are sexually aroused. This mechanism is entirely separate from the processes involved in sperm production (spermatogenesis), which takes place in the testes over approximately 70 days.
PDE5 enzymes are found in various tissues throughout the body, but the action of vardenafil on these enzymes does not disrupt the hormonal signals or cellular processes required for healthy sperm development [5]. Clinical studies and post-marketing surveillance have not identified any adverse effects of vardenafil on sperm count, motility (movement), or morphology (shape). Men who take vardenafil for erectile dysfunction can generally do so without concern that the medicine will reduce their fertility or harm their chances of conception.
It is important to remember that erectile dysfunction itself can be a barrier to conception simply because it makes intercourse difficult or impossible. By successfully treating ED, vardenafil may actually improve the chances of conception by enabling regular sexual activity during the fertile window [1][2].
Research on Vardenafil and Male Fertility
While large-scale fertility studies specifically focused on vardenafil are limited, the available evidence is reassuring. Animal studies and human pharmacokinetic data show that vardenafil does not accumulate in the testes or interfere with testosterone production, the hormone essential for sperm production [5]. Vardenafil is rapidly absorbed and eliminated from the body, with a half-life of approximately four to five hours, meaning it does not build up over time with regular use.
Broader research on PDE5 inhibitors as a class has consistently found no negative impact on male fertility parameters [8]. Some studies have even explored whether PDE5 inhibitors might have a role in treating certain types of male infertility, although this remains an area of ongoing investigation. For men with erectile dysfunction who are trying to conceive, the priority is often to restore erectile function so that intercourse can occur at the right time in the menstrual cycle.
If you have concerns about fertility or have been trying to conceive for more than a year without success (or six months if your partner is over 35), it is advisable to speak with your GP. They can arrange a semen analysis and other investigations to assess fertility independently of any ED treatment you may be using [2].
What About Other ED Medicines and Fertility?
The same reassuring evidence applies to other PDE5 inhibitors used for erectile dysfunction. Sildenafil, tadalafil, and avanafil all work by the same mechanism as vardenafil and have not been shown to harm male fertility [3][4][6]. If you are taking any of these medicines and planning to start a family, you can continue your treatment with confidence. The choice between different PDE5 inhibitors is usually based on how quickly they work, how long they last, and personal preference rather than any difference in fertility safety.
Vardenafil and Fertility: Practical Advice for Couples Trying to Conceive
If you are taking vardenafil and actively trying for a baby, the most important factor is timing intercourse around ovulation, which typically occurs around day 14 of a 28-day menstrual cycle. Vardenafil is taken on demand, usually 25 to 60 minutes before sexual activity, and works only when you are sexually stimulated [5]. This flexibility makes it well-suited for couples who want to plan intercourse around fertile days without the need for daily medication.
Vardenafil is available in 5 mg, 10 mg, and 20 mg doses. The usual starting dose is 10 mg, taken as needed, and your prescriber may adjust this based on effectiveness and side effects [5]. Because vardenafil does not need to be taken every day, you can use it only when required, which may be preferable if you are concerned about taking any medicine while trying to conceive, even though the evidence shows it is safe.
Lifestyle factors play a significant role in both erectile function and fertility. Maintaining a healthy weight, eating a balanced diet, exercising regularly, limiting alcohol, avoiding smoking, and managing stress can all improve erectile dysfunction and support healthy sperm production [1][2]. If ED is caused or worsened by an underlying health condition such as diabetes, high blood pressure, or high cholesterol, treating these conditions can benefit both sexual health and fertility.
| Question | Short Answer |
|---|---|
| Does vardenafil reduce sperm count? | No, vardenafil does not affect sperm count or sperm production. |
| Can I take vardenafil while trying for a baby? | Yes, vardenafil is safe to use when trying to conceive. |
| Will vardenafil harm my partner's pregnancy? | No, vardenafil does not pose any risk to pregnancy or the baby. |
| How long does vardenafil stay in the body? | Vardenafil has a half-life of 4-5 hours and is eliminated within a day. |
| Should I stop vardenafil if my partner gets pregnant? | No, you can continue taking vardenafil safely during your partner's pregnancy. |
| Are other ED medicines safer for fertility? | All PDE5 inhibitors (sildenafil, tadalafil, avanafil) are equally safe for fertility. |
What you need to know
- Vardenafil does not affect sperm count, quality, or male fertility
- You can safely take vardenafil while trying to conceive
- Vardenafil works by improving blood flow, not by affecting hormones or sperm
- All PDE5 inhibitors are equally safe for fertility
- See your GP if you have been trying to conceive for over a year
When to See a Doctor About Vardenafil and Fertility Concerns
If you have been using vardenafil and have concerns about your fertility, or if you and your partner have been trying to conceive for a year or more without success, it is important to see your GP [2]. Fertility investigations typically include a semen analysis for the male partner and ovulation tracking or other tests for the female partner. These tests can identify any issues that may be affecting your ability to conceive, independently of your ED treatment.
Erectile dysfunction can sometimes be an early warning sign of cardiovascular disease or diabetes, both of which can affect overall health and fertility [1][2]. If you have not yet discussed your ED with a doctor, it is worth doing so, as treating any underlying condition may improve both erectile function and general wellbeing. Your GP can also review any other medicines you are taking to ensure there are no interactions or factors that might be contributing to ED or fertility concerns.
Vardenafil is a prescription-only medicine, and at Cured Pharmacy all ED treatments are supplied following an online consultation reviewed by a UK-registered prescriber. During this consultation, you can discuss any concerns about fertility, and the prescriber will ensure vardenafil is safe and appropriate for you based on your medical history and current medications [5].
What If Vardenafil Doesn't Work for Me?
If vardenafil is not effective or causes side effects, there are several alternative ED treatments available. Other PDE5 inhibitors such as sildenafil, tadalafil, or avanafil work in a similar way but differ in onset and duration of action [3][4][6]. Tadalafil, for example, can last up to 36 hours, which may offer more spontaneity for couples trying to conceive. Your prescriber can help you find the most suitable option, and switching between PDE5 inhibitors is common and safe.
Does Vardenafil Affect Female Fertility or Pregnancy?
Vardenafil is not intended for use by women and has not been studied in pregnant or breastfeeding women [5]. However, if you are a man taking vardenafil and your partner becomes pregnant, there is no evidence that the medicine poses any risk to the developing baby. Vardenafil is present in the body for only a short time after each dose and is not transferred in any meaningful amount through semen.
If your partner is pregnant or breastfeeding, you can continue to take vardenafil as prescribed without concern for her health or the baby's development. The medicine works locally in your body to improve erectile function and does not have systemic effects that would be passed on during intercourse or through other contact.
Some couples worry about taking any medicine during the conception period, and this is understandable. However, the evidence clearly shows that vardenafil does not interfere with conception, pregnancy, or fetal development [5]. If you have specific concerns, discuss them with your GP or the prescriber during your consultation, but you can be reassured that using vardenafil while trying for a baby is considered safe.
When to get urgent help
- Erection lasting more than 4 hours (priapism) – go to A&E immediately
- Sudden loss of vision or hearing after taking vardenafil – seek urgent medical help
- Chest pain during or after sex – stop activity and call 999 if pain does not resolve quickly
- Severe dizziness, fainting, or allergic reaction (rash, swelling, difficulty breathing) – call 999
Call 999 or go to A&E in an emergency, or contact NHS 111 for urgent advice.
Vardenafil and Fertility: Key Points to Remember
Vardenafil is a safe and effective treatment for erectile dysfunction that does not negatively affect male fertility, sperm quality, or the ability to conceive a child [5]. It works by improving blood flow to the penis during sexual arousal and does not interfere with sperm production or hormonal balance. Men taking vardenafil can continue to use it while trying to start a family, and by treating ED, the medicine may actually improve the chances of conception by enabling regular intercourse.
If you have been trying to conceive for a year or more without success, or if you have other concerns about fertility, it is important to see your GP for a full assessment [2]. Fertility issues can affect either partner, and early investigation can identify any problems and guide appropriate treatment. Lifestyle changes such as maintaining a healthy weight, eating well, exercising, and avoiding smoking and excessive alcohol can support both erectile function and fertility.
At Cured Pharmacy, vardenafil is available from £16.95 following an online consultation with a UK-registered prescriber. You can discuss any concerns about fertility or other health matters during the consultation, and the prescriber will ensure the treatment is safe and suitable for you. All ED medicines at Cured Pharmacy require a prescription and are dispensed by our GPhC-registered pharmacy.
How to Get Vardenafil from Cured Pharmacy
To order vardenafil from Cured Pharmacy, complete a short online consultation that covers your medical history, current medications, and any other relevant health information. A UK-registered prescriber will review your answers and, if appropriate, issue a prescription. Your medicine is then dispensed by our GPhC-registered pharmacy and delivered discreetly to your door. If you have questions about vardenafil and fertility or any other aspect of your treatment, you can ask during the consultation or contact our pharmacy team for advice.
Time It Right
Take vardenafil 25-60 minutes before intercourse during your partner's fertile window (usually around day 14 of the cycle) to maximise your chances of conception while treating ED effectively.
Scientific References
- NHS. (n.d.). Erectile dysfunction (impotence). NHS website. https://www.nhs.uk/conditions/erection-problems-erectile-dysfunction/ [accessed 9 November 2026]
- National Institute for Health and Care Excellence. (n.d.). Erectile dysfunction. Clinical Knowledge Summaries. https://cks.nice.org.uk/topics/erectile-dysfunction/ [accessed 9 November 2026]
- Joint Formulary Committee. (n.d.). Sildenafil. British National Formulary. NICE. https://bnf.nice.org.uk/drugs/sildenafil/ [accessed 9 November 2026]
- Joint Formulary Committee. (n.d.). Tadalafil. British National Formulary. NICE. https://bnf.nice.org.uk/drugs/tadalafil/ [accessed 9 November 2026]
- Joint Formulary Committee. (n.d.). Vardenafil. British National Formulary. NICE. https://bnf.nice.org.uk/drugs/vardenafil/ [accessed 9 November 2026]
- Joint Formulary Committee. (n.d.). Avanafil. British National Formulary. NICE. https://bnf.nice.org.uk/drugs/avanafil/ [accessed 9 November 2026]
- European Association of Urology. (n.d.). EAU Guidelines on Sexual and Reproductive Health. https://uroweb.org/guidelines/sexual-and-reproductive-health [accessed 9 November 2026]
Information on this page is for educational purposes only and is not medical advice. Prescription treatments require clinical assessment by a UK-registered prescriber. Always consult a qualified healthcare professional before starting or changing any medication.
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Frequently Asked Questions
Does vardenafil affect testosterone levels?
No, vardenafil does not affect testosterone production or levels. It works by improving blood flow to the penis and does not interfere with hormones.
Can vardenafil cause birth defects?
No, there is no evidence that vardenafil causes birth defects. It is not transferred in meaningful amounts through semen and does not affect fetal development.
How soon can I try to conceive after starting vardenafil?
You can try to conceive immediately. Vardenafil does not require a waiting period and does not affect fertility.
Is vardenafil better than Viagra for fertility?
Both vardenafil and sildenafil (Viagra) are equally safe for fertility. The choice depends on how quickly they work and how long they last, not on fertility safety.
Can I take vardenafil every day when trying for a baby?
Vardenafil is taken on demand, not daily. You take it 25-60 minutes before sex, which allows you to time it around fertile days.
Will vardenafil improve my chances of conception?
Vardenafil treats erectile dysfunction, which can improve your ability to have intercourse during the fertile window, potentially increasing the chances of conception.
Should my partner avoid contact with vardenafil tablets?
There is no need for your partner to avoid contact with the tablets. Vardenafil is not absorbed through the skin and poses no risk to women.
Can I get a semen analysis while taking vardenafil?
Yes, you can have a semen analysis while taking vardenafil. The medicine does not affect the results of fertility tests.
Medically reviewed by
Tarun Kumar, Superintendent Pharmacist (GPhC 2233073)
Last updated on 09 November 2026.
Review History
Our experts continually monitor new findings in health and medicine, and we update our articles when new information becomes available.
Why this page was updated on 09 November 2026
Content checked and updated as part of our periodic review, to ensure accuracy and currentness.
Current version (09 November 2026)
Edited by: The Editorial Team
Medically reviewed by:
Tarun Kumar, GPhC No. 2233073, Superintendent Pharmacist
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