Tadalafil and Theophylline: High risk — avoid combining interaction. Avoid combining these medicines. FDA label for Tadalafil references interaction with Theophylline. Theophylline) — Tadalafil had no significant effect on the pharmacokinetics of theophylline....

Drug InteractionHigh Risk — AvoidAI-VerifiedCategory · general

Can I take Tadalafil with Theophylline?

Tadalafil and Theophylline should not be combined without explicit medical guidance. FDA label for Tadalafil references interaction with Theophylline. Theophylline) — Tadalafil had no significant effect on the pharmacokinetics of theophylline....

TadalafilMEDICINE ATheophyllineMEDICINE B
Avoid combining
Do not combine

Quick verdict

No — avoid combining Tadalafil with Theophylline.

Tadalafil and Theophylline should not be combined without explicit medical guidance. FDA label for Tadalafil references interaction with Theophylline. Theophylline) — Tadalafil had no significant effect on the pharmacokinetics of theophylline....

How They Interact

The science in one sentence

FDA label for Tadalafil references interaction with Theophylline. Theophylline) — Tadalafil had no significant effect on the pharmacokinetics of theophylline....

Why this matters

FDA label for Tadalafil references interaction with Theophylline. Theophylline) — Tadalafil had no significant effect on the pharmacokinetics of theophylline....

Why to Avoid

Simple rules that protect you

  • Always tell your doctor/pharmacist about ALL medicines you take — prescriptions, OTC, supplements, and herbal products.
  • Keep a current medicine list with doses and timings — photo on your phone is enough.
  • Read medicine labels for timing (with food / empty stomach) before combining.
  • Do NOT combine Tadalafil with Theophylline without explicit doctor approval.
  • Use GoDavaii AI to double-check before adding any new medicine, supplement, or desi ilaaj.

If you've already taken both medicines and feel unwell (unusual bleeding, severe stomach pain, confusion, breathing issues), get medical help now.

Emergency · 112
AI-Verified · Cross-checked against 40,000+ interaction database

Not medical advice

Individual responses vary based on dose, timing, health conditions, and other medicines. Always consult your doctor or pharmacist before combining medicines. For emergencies, call 112.

Frequently Asked Questions

Interaction AI · 22 languages

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