How to Take Spedra for Erectile Dysfunction: Timing and Best Practice
- A genuinely practical, step-by-step guide to timing, not another product overview
- A dedicated common-mistakes section, not covered on any other Spedra page
- Clear guidance for taking it the first time, and building a predictable routine
- Online consultation with UK-registered prescribers
Spedra (avanafil) is swallowed whole with water, generally 15-30 minutes before you expect to need it, though guidance on exact timing for your situation is confirmed during your clinical assessment. It is genuinely one of the faster-acting PDE5 inhibitors used to treat erectile dysfunction, and it works by supporting blood flow during arousal rather than causing an automatic erection.
This guide covers exactly how and when to take it, the food-timing trade-off, what to expect the first time, and the common mistakes worth avoiding. In short, it only works when natural stimulation is present.
Key things to know
- Spedra is typically taken 15-30 minutes before sexual activity.
- It is taken as needed, not on a fixed daily schedule, with a maximum of once per day.
- A high-fat meal can delay the onset of activity, though it does not prevent Spedra from working.
- The appropriate strength and dose for you should be confirmed during a clinical assessment rather than self-selected.
- It only works with stimulation, taking it does not produce an automatic effect on its own
The Direct Answer: How to Take Spedra
Swallow the tablet whole with a glass of water, generally 15-30 minutes before sexual activity. It can be taken with or without food, but a heavy or high-fat meal beforehand may delay how quickly it begins to work. The maximum recommended frequency is once per day. Spedra supports the body's natural erectile response when sexual stimulation is present.
The sections below provide useful detail on timing, the food-related trade-off, and the role of natural stimulation.
When to Take It Relative to Planned Activity
Spedra is generally taken approximately 15-30 minutes before sexual activity. Clinical studies have shown that some men may respond relatively soon after taking avanafil, but the time to effect can vary between individuals and occasions.
Allowing a reasonable buffer rather than relying on an exact minute-by-minute schedule can provide more predictable results, as the time it takes to take effect may vary between individuals and occasions. Spedra supports the body's natural response when appropriate stimulation is present rather than producing an automatic effect.
The effect can continue for several hours, but there is no fixed duration that applies to everyone. You should not interpret Spedra as providing a guaranteed 4-5-hour period of effectiveness.
This flexibility is genuinely one of the practical advantages of a faster-onset medicine, you do not need to plan hours in advance the way some approaches require, but it is still worth avoiding the very last minute, giving even a modest buffer means you're not relying on the fastest possible individual response, which varies between men and even between occasions for the same person.
Taking It With or Without Food
Spedra can be taken with or without food. However, if it is taken with food, the onset of activity may be delayed compared with taking it in the fasted state. A high-fat meal can delay absorption and reduce the peak concentration reached, although it does not significantly affect the overall amount of avanafil absorbed.
The recommended starting dose is 100mg tablets taken as needed, if that is what your prescriber has advised.
If you know in advance that a heavy meal is likely beforehand, building in extra time before you expect to need the effect is a sensible practical adjustment, rather than assuming the same 15-30 minute window will apply regardless of what you have eaten.
Taking Spedra for the First Time
When taking any new medicine for the first time, it can be sensible to choose an occasion when you have enough time to understand how you respond to it. This can help you become familiar with the timing and any side effects, such as headache, flushing or nasal congestion.
It is also worth reading through the patient information leaflet included with your specific pack before the first dose, this covers the full safety information relevant to your exact product and strength, more detail than any general guide can responsibly provide.
Noting how the first occasion goes, roughly how long it took to notice an effect, whether you experienced any side effects, and how the overall window felt, gives you genuinely useful information for future occasions and for any follow-up review. This is not about being clinical or overly analytical, just enough awareness to have something concrete to discuss if timing or effectiveness questions come up later, including whether nausea, diarrhea, or feel dizzy occurred, as up to 1 in 10 people may experience nausea or diarrhea.
How Strength Affects Timing Decisions
Spedra is available in three licensed strengths: 50mg, 100mg and 200mg. The recommended dose for many adult men is 100mg, taken approximately 15-30 minutes before sexual activity. Depending on individual efficacy and tolerability, the dose may be increased to 200mg or reduced to 50mg.
Which dose of Spedra is appropriate for you, and any adjustment to it, is confirmed during clinical assessment and review, not something to decide based on timing preferences alone. If the initial 100mg strength is not effective enough, a prescriber may review your response and decide whether Spedra 200mg is suitable.
Building a Predictable Routine
Since Spedra is taken as needed rather than daily, there is no fixed routine to build in the way there is with daily medicine, but a few consistent habits genuinely help make your own experience more predictable. However, using it in broadly similar circumstances can make it easier to understand how you respond to the medicine.
For example, being aware of whether you have eaten a heavy meal or consumed alcohol can help explain why the timing or response may differ on a particular occasion.
Keeping your pack somewhere accessible but appropriately stored, see the storage guidance below, also removes a practical barrier to taking it with enough lead time, rather than rushing at the last minute.
Building this kind of consistency is not about rigid rule-following, it is about giving yourself a genuinely fair, comparable basis for judging your own response over time. If every occasion involves different timing, different food, and different levels of tiredness, it becomes genuinely difficult to tell whether an inconsistent result reflects the medicine itself or simply the varying circumstances each time.
Common Mistakes When Taking Spedra
- Taking it after a heavy, high-fat meal and expecting the usual fast onset, this delays absorption and can lead to disappointment about timing rather than effectiveness
- Judging it as "not working" after a single occasion without considering factors such as food, stress, tiredness or alcohol, which can affect erectile function and the likelihood of side effects.
- Taking more than one dose of Spedra in 24 hours because the first "didn't seem to work" is not safe self-adjustment
- Failing to tell your prescriber about a new medicine. This is particularly important with medicines such as alpha-blockers or CYP3A4 inhibitors, which can affect blood pressure or avanafil levels.
- Storing tablets somewhere humid, like a bathroom cabinet, which is not ideal for tablet stability over time
- Assuming that a faster onset means the medicine will work at exactly the same time on every occasion. Individual responses can vary.
Most of these mistakes share a common thread, treating a single occasion, or a single assumption about timing, as more definitive than it really is. Spedra's genuine effectiveness is best judged over a reasonable number of attempts under fair conditions, not from any one occasion where an uncontrolled variable, food, tiredness, timing, may well have played a bigger role than the medicine itself.
What to Avoid Alongside Spedra, Including Drinking Alcohol
Spedra must not be taken with organic nitrate medicines or nitric oxide donors, such as amyl nitrite, because the combination can cause a dangerous fall in blood pressure. It must also not be combined with riociguat or other PDE5 inhibitors or erectile dysfunction treatments unless specifically advised by an appropriate healthcare professional.
Grapefruit and grapefruit juice can increase avanafil exposure, so the product information advises avoiding grapefruit juice within 24 hours before taking Spedra.
Alcohol taken with avanafil can increase the risk of symptomatic low blood pressure, including dizziness or fainting. Excessive alcohol can also make it harder to achieve an erection.
Some other medicines, particularly CYP3A4 inhibitors, can increase avanafil levels. Tell your prescriber or pharmacist about all medicines you take, including medicines bought without a prescription, before using Spedra.
If you take an alpha-blocker, your prescriber may need to use a lower starting dose of avanafil and monitor how you respond.
If You have Taken It and Nothing Happens
A single occasion where there is no noticeable effect does not necessarily mean the medicine is unsuitable or ineffective for you. Spedra relies on natural stimulation to support its effect, so one unsuccessful attempt does not automatically indicate that treatment has failed. Factors such as tiredness, a heavy meal, stress, or alcohol can also influence the outcome independently of the medicine.
A more reliable assessment considers the overall pattern across several occasions under reasonably similar conditions rather than drawing conclusions from a single experience.
If a pattern of insufficient response emerges across multiple attempts, this is worth raising at a review, rather than increasing how often you take it or combining it with anything else on your own initiative.
It is also worth ruling out simple, practical explanations before assuming the dose itself is the issue. Was it taken after a particularly heavy meal? Was there significantly less time allowed than usual before expecting an effect? Was alcohol involved, or was it an unusually tiring or stressful day? None of these mean the medicine has stopped working, they are simply variables that can genuinely affect any single occasion, and separating them from a genuine pattern of insufficient response is exactly what a proper review is for.
Missed or Extra Doses
Since Spedra is taken as needed rather than on a fixed schedule, there is no "missed dose" in the usual sense, simply take it again next time you need it and do not take more than one dose in 24 hours. The maximum recommended frequency is once per day.
If you are unsure whether you have already taken a dose, do not take another tablet simply to be safe. Contact your doctor, pharmacist or NHS 111 for advice.
Do not use the fact that Spedra is an as-needed medicine as a reason to increase the dose or frequency beyond what has been prescribed.
Independent of the last, which is worth understanding so you do not apply missed-dose thinking from a different type of medicine to this one.
How This Compares to Taking Other PDE5 Inhibitors
Understanding how Spedra's timing profile compares to the other licensed PDE5 inhibitors can help put its practical advantages, and trade-offs, into context. These medicines are all used to treat erectile dysfunction, but they have different timing and duration profiles and should not be combined without appropriate medical advice.
| Medicine | When to take it | Food consideration |
|---|---|---|
| Avanafil (Spedra) | Taken approximately 15-30 minutes before sexual activity | Food can delay the onset, particularly after a high-fat meal |
| Sildenafil | Usually taken about 1 hour before sexual activity | A high-fat meal can delay absorption |
| Tadalafil | Provides a broader treatment window and is less tied to a specific moment | Not significantly affected by food |
| Vardenafil | Generally taken before sexual activity | A high-fat meal can delay absorption |
Avanafil's relatively fast onset can suit people who prefer a shorter lead time, while tadalafil's longer treatment window may suit people who want less time-specific planning. The most appropriate option depends on individual circumstances, response, side effects and medical history.
What a Clinical Assessment Covers on Timing
Your clinical assessment will confirm the strength appropriate for you and any specific guidance on timing, alongside checks of your current medicines, cardiovascular health and other relevant medical conditions.
Tell your prescriber if you have low or high blood pressure, a history of serious heart problems, a bleeding disorder, active peptic ulceration or other significant medical conditions. You should also disclose conditions that may increase the risk of a prolonged erection, such as Peyronie's disease, sickle cell disease or multiple myeloma.
Your assessment should also cover medicines that may interact with avanafil, including nitrates, alpha-blockers and CYP3A4 inhibitors.
If your daily routine involves shift work, irregular meals or other circumstances that make timing difficult, you can discuss these with your prescriber so that the treatment plan can be tailored appropriately.
Storing Spedra Correctly
Spedra does not require any special storage conditions according to the product information. Keep the tablets in their original packaging and follow the expiry instructions supplied with your medicine.
When travelling, keeping Spedra in its original packaging can make it easier to identify the medicine and carry the relevant prescription or supporting documentation if needed. Check the rules of your destination before travelling with prescription medicines.
Red Flags and Side Effects Worth Knowing
- An erection lasting more than 4 hours is one of the following serious side effects and needs immediate medical attention.
- Chest pain, dizziness, or fainting during or after sexual activity: seek urgent medical attention, particularly if the pain is severe or persistent.
- Sudden decrease or loss of vision or hearing, including blurred vision sudden decrease in one or both eyes, eyes sudden decrease, or sudden decrease.
- Signs of a severe allergic reaction, such as swelling of the face or throat, difficulty breathing or a severe skin reaction: seek emergency medical treatment.
Tell your prescriber or pharmacist about any new medicines before taking Spedra, particularly medicines that may interact with avanafil.

Medical Disclaimer
This page provides general information about how to take Spedra (avanafil). It is not a substitute for personalised medical advice from a doctor or pharmacist. Treatment suitability, including timing and strength, depends on an individual clinical assessment. Your prescriber will determine the appropriate treatment for you. Results vary between individuals. If you experience an erection lasting 4 hours or more, chest pain, a severe allergic reaction, or a sudden decrease or loss of vision or hearing, seek urgent medical attention.









