Important considerations before combining these medications include: Absolute contraindications : The combination should be avoided in patients with cardiovascular disease, uncontrolled hypertension, hyperthyroidism, glaucoma, during or within 14 days of MAOI use, personal/family history of MTC or MEN2, pregnancy, breastfeeding, or severe gastrointestinal disease Cardiovascular risk assessment : Phentermine increases heart rate and blood pressure, which requires careful monitoring with baseline and follow-up measurements of vital signs and possibly EKG if cardiac history exists Gastrointestinal tolerability : Tirzepatide commonly causes nausea, vomiting, and diarrhea, which may be compounded by phentermine's effects Medication interactions : Tirzepatide may reduce the effectiveness of oral contraceptives during initiation and dose escalation

J Intern Med 257:299310, PMID: 15715687 Bested AC, Saunders PR, Logan AC (2001) Chronic fatigue syndrome: neurological findings may be related to bloodbrain barrier permeability
Can You Drink Alcohol While Taking Ozempic
Long-Term Treatment With Metformin and Vitamin B12 Deficiency