Paracetamol and Ibuprofen With or Without Famotidine for Calcific Tendinitis of the Shoulder

Inclusion Criteria: * Age ≥18 years * Clinical history of shoulder pain consistent with calcific tendinitis * Presence of calcifications confirmed by shoulder X-ray * Ability and willingness to comply with study procedures and follow-up * Signed informed consent Exclusion Criteria: * Known allergy or hypersensitivity to paracetamol, ibuprofen, or famotidine * Active gastrointestinal disease contraindicating NSAID use * Chronic dual antiplatelet therapy * Current use of proton pump inhibitors other than pantoprazole (unless temporarily replaced) * Severe systemic diseases that may interfere with study participation or outcomes