Sildenafil or tadalafil? Start with the way you live.
In this article
Sildenafil and tadalafil both help erections in response to sexual stimulation. Sildenafil is an as-needed treatment; tadalafil has as-needed and daily schedules. The useful differences are timing, how long the response window lasts, food, side effects and the routine you want. Sildenafil labeling, tadalafil labeling.
A good choice should make sense on an ordinary evening, not just on a comparison chart. Bring your actual experience into the decision: dinner plans, spontaneity, how often you anticipate sex and anything you disliked about a previous prescription.
The differences at a glance
| Consideration | Sildenafil | Tadalafil |
|---|---|---|
| Familiar brand | Viagra | Cialis |
| Routine for ED | As needed before sex | As needed or daily, depending on prescription |
| Timing | Commonly about an hour before sex | As-needed treatment has a longer response window; daily treatment separates the tablet from the occasion |
| Food | A high-fat meal can delay absorption | Food does not meaningfully change absorption |
| Need for stimulation | Yes | Yes |
| What it does not directly treat | Low sexual desire | Low sexual desire |
| Main practical question | Does an occasion-based routine fit? | Does a longer window or daily routine fit? |
These comparisons refer to the oral ED medicines in their approved labeling. The sildenafil and tadalafil tablets offered here are generic medications. A compounded combination or different delivery format needs its own assessment and should not inherit every finding about a single-ingredient tablet. Sildenafil, tadalafil.
Think about the evening you actually want
If taking a tablet before anticipated sex feels straightforward, sildenafil may be an option to discuss. If a large dinner is usually part of the evening, the food interaction belongs in the conversation. Do not judge a prescription solely by an experience in which its instructions were unclear.
If uncertainty about timing is what bothers you, tadalafil’s longer window may be useful. As-needed tadalafil has demonstrated benefit up to 36 hours after a dose, with stimulation. That is not a continuous erection, and it does not mean every individual responds for the same length of time. Tadalafil labeling.
Daily tadalafil offers a different arrangement: the tablet belongs to your regular schedule. Read daily versus on-demand tadalafil if separating medication from the moment is your main goal.
Which one works better?
There is no useful universal answer based on the drug name or number of milligrams. In an open-label randomized study of 770 men new to ED medication, erectile-function improvement was similar across the tested sildenafil and tadalafil routines. Persistence and reasons for stopping varied. Because participants knew their assigned treatment, preferences could influence the experience. Comparative trial.
Your experience can be more specific than “better.” A treatment may help firmness but create an inconvenient routine. Another may fit your schedule but cause side effects you do not want to tolerate. Neither tradeoff requires quietly abandoning care. Report what worked and what did not.
If neither has helped, there are questions worth checking before changing medication. Our ED medication troubleshooting guide covers timing, stimulation, underlying contributors and follow-up.
Side effects and interactions can decide the choice
Both medicines can cause headache, flushing, indigestion or nasal congestion. Sildenafil can cause visual disturbances; tadalafil can cause back pain or muscle aches. A longer response window also means a longer period of drug exposure. Review previous reactions and all medications with your prescriber. Sildenafil labeling, tadalafil labeling.
Neither should be combined with nitrates, poppers or riociguat. Do not add one ED medicine to another without a prescribing plan. Seek immediate care for an erection lasting more than four hours, sudden vision loss or sudden hearing changes. For chest pain, tell emergency clinicians what you took and when; do not self-treat with a nitrate. Sildenafil prescribing information.
What if the problem is desire or pressure?
An erection medication may answer only part of the question. Desire without reliable erections is different from erections without desire. If a new partner changes the experience, our performance-anxiety guide offers a way to discuss that without making assumptions about the cause.
Treatment can involve underlying health conditions, lifestyle changes, counseling, medication or other options. NIDDK recommends an individualized approach and a review of medicines that might contribute; do not stop those medicines yourself. NIDDK treatment guide.
Compare the whole plan
The plans below show current billed totals, monthly equivalents and commitments. All listed fees are included. Confirm medication quantity wherever it is not specified; a price comparison without quantity cannot establish which plan offers better value.
Choose the page that matches the option you want to explore. You can ask about alternatives during the assessment rather than deciding that the first medication you read about must be the answer.
Compare the plans at AnthologyRX
All fees are included in the listed plan price. Compare the amount billed and the commitment alongside the monthly equivalent. Compare all sexual-health plan prices, including compounded dissolving tablets.
Tadalafil 5mg Daily
A daily routine that separates taking a tablet from the occasion.
- Strength
- 5 mg
- Total plan quantity
- 90 tablets
- Billed amount
- $117 every 3 months
- Monthly equivalent
- $39 per month
- Commitment
- 3 months
- Monthly option
- $59 billed monthly · 30 tablets total plan quantity
- Fees
- Included in the plan price
Tadalafil 20mg On-Demand
An as-needed option with a longer response window.
- Strength
- 20 mg
- Total plan quantity
- 48 tablets
- Billed amount
- $87 every 3 months
- Monthly equivalent
- $29 per month
- Commitment
- 3 months
- Monthly option
- $49 billed monthly · 16 tablets total plan quantity
- Fees
- Included in the plan price
Sildenafil
An as-needed option taken ahead of sex.
- Billed amount
- $87 every 3 months
- Monthly equivalent
- $29 per month
- Commitment
- 3 months
- Monthly option
- $49 billed monthly
- 25 mg monthly plan
- $49 billed monthly · 10 tablets total plan quantity
- 25 mg quarterly plan
- $87 every 3 months · 30 tablets total plan quantity
- 50 mg monthly plan
- $49 billed monthly · 16 tablets total plan quantity
- 50 mg quarterly plan
- $87 every 3 months · 48 tablets total plan quantity
- Fees
- Included in the plan price
Start with the treatment page to review the plan, then complete the secure assessment. Your clinician reviews your health history and treatment request. Read how care works and the consultation, cancellation and refund policy before you begin.
