Orphengesic® Forte is contraindicated in patients with glaucoma, pyloric or duodenal obstruction, achalasia, prostatic hypertrophy, obstructions at the bladder neck, myasthenia gravis, hypersensitivity to the drug, and known sensitivities to aspirin or caffeine.
The side effects of Orphengesic® Forte are those seen with aspirin and caffeine or those usually associated with mild anti-cholinergic agents. These may include tachycardia, palpitation, urinary hesitancy or retention, dry mouth, blurred vision, dilation of the pupil, increased intraocular tension, weakness, nausea, vomiting, headache, dizziness, constipation, and drowsiness, and rarely, urticaria and other dermatosis.
For more details, please read the Full Prescribing Information for Orphengesic® Forte.
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit MedWatch or call 1-800-FDA-1088.