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

Short answer: both work well. Choose sildenafil (Viagra/generic) if you want a shorter-acting, as‑needed option; choose tadalafil (Cialis/generic) if you want a much longer window of effect or want a low daily dose for frequent activity or BPH symptoms. Both are prescription-only and many telehealth services will evaluate you and send a prescription.

Quick comparison

• Onset/duration
  • Sildenafil: onset ~30–60 minutes, duration ~4–6 hours.
  • Tadalafil: onset ~30–120 minutes, duration up to 36 hours (hence “weekend pill”).
• Use patterns
  • Sildenafil: best for occasional/as‑needed use.
  • Tadalafil: good if you want more spontaneity or plan to have sex more often (also available as daily low-dose 2.5–5 mg).
• Side-effect tendencies
  • Sildenafil: more likely to cause transient visual changes or flushing.
  • Tadalafil: more likely to cause muscle/back pain, and lasts longer so side effects may persist longer.
• Safety/contraindications (important)
  • Do NOT take any PDE5 inhibitor with nitrates (can cause dangerous low blood pressure).
  • Use caution with alpha‑blockers, certain antifungals, HIV protease inhibitors, and riociguat. Dose adjustments may be required for liver/renal disease.
  • If you have heart disease, recent heart attack/stroke, uncontrolled blood pressure, or are taking nitrates, talk with a clinician first.

Typical starting doses (talk to prescriber)

• Sildenafil: commonly 50 mg as-needed; adjust to 25 or 100 mg based on effect/tolerance.
• Tadalafil: commonly 10 mg as-needed or 5–20 mg; daily dosing commonly 2.5–5 mg.

Services that commonly offer both (telehealth + prescription/ship options)

• Hims — telehealth consults, ships sildenafil and tadalafil generics; popular, discreet, subscription or one-time options.
• Ro / Roman — telehealth + delivery, carries both generics; user-friendly platform for ED care.
• Lemonaid Health — affordable telehealth visits and medications, offers both sildenafil and tadalafil generics.
• PlushCare — telemedicine visits and e-prescriptions (can be sent to your local pharmacy or mail-order); clinicians commonly prescribe either option.
• GoodRx Care / GoodRx Telehealth — quick visit and coupons for filling either drug at local pharmacies or by mail.

(Any of the above will require a short medical history/consult to check safety and interactions. Prices vary; using generic sildenafil/tadalafil plus GoodRx coupons or comparing pharmacies can lower cost.)

If you want, tell me:

• whether you prefer occasional use or frequent/daily use,
• any heart meds (especially nitrates) or other prescriptions, and I’ll suggest which to start with and which specific service might be best for you.