Sildenafil vs tadalafil: which should I ask for and which service offers both?

Short answer

• If you want a short-acting "on‑demand" dose for occasional sex, ask about sildenafil (generic Viagra). It usually works in 30–60 minutes and lasts ~4–6 hours.
• If you want a longer “window” of effectiveness or want the option of a low daily pill, ask about tadalafil (generic Cialis). It works in ~30 minutes, can last up to 36 hours, and is available as a low daily dose (2.5–5 mg) for frequent activity.
• Check with a clinician before starting either (especially if you take nitrates, some blood‑pressure meds, or have significant heart/liver/kidney disease).

Quick comparison (practical factors)

• Onset: similar (~30–60 min).
• Duration: sildenafil ~4–6 hrs; tadalafil up to 36 hrs.
• Dosing options: sildenafil 25/50/100 mg (on‑demand). Tadalafil 5/10/20 mg (on‑demand) and 2.5/5 mg daily.
• Food: high‑fat meals can reduce sildenafil’s speed/effect; tadalafil less affected.
• Side effects: both can cause headache, flushing, nasal congestion; tadalafil more often causes muscle/back pain; sildenafil more often causes transient blue/green vision tint.
• Cost: generic versions are much cheaper than brand names.

Where to get them (services that offer both)

• Hims — telehealth consult + home delivery; offers generic sildenafil and tadalafil, subscription options. Good for convenience and discreet packaging.
• Roman (Ro) — telehealth and fast home delivery; carries both drugs and has subscription/refill plans.
• Nurx — online visit and delivery; offers both sildenafil and tadalafil generics.
• Lemonaid Health — telehealth + mail delivery; commonly prescribes both generics and is usually competitively priced.
• GoodRx Care — online visit service; you can get a prescription and use GoodRx coupons at local pharmacies for low prices.
• Local/chain pharmacies (CVS, Walgreens, Walmart Pharmacy) — can fill prescriptions from any clinician (good if you prefer same‑day pickup or want to talk to a pharmacist).

Notes and next steps

• Tell the telehealth clinician about other meds (especially nitrates, alpha‑blockers, certain HIV/HCV drugs) and health conditions.
• Typical starting approach: try a moderate on‑demand dose first (e.g., sildenafil 50 mg or tadalafil 10 mg) as advised by a clinician, then adjust. Daily tadalafil is an option if you have sex several times per week.
• If you want, tell me your country (or whether you prefer mail delivery vs same‑day pickup) and I can point to the best service in your area and roughly what prices to expect.