OBJECTIVE: The prevalence of comorbid depression and chronic kidney disease (CKD) is high. The aim of this brief report was to review 2 cases of treatment with tranylcypromine (TCP) in patients with treatment-resistant depression (TRD) and CKD. Tests of the plasma concentration of TCP were included.
METHODS: Medical and psychiatric notes of the 2 patients were reviewed with plasma concentrations of TCP as a key aspect of the discussion. The data are evaluated in the context of relevant medical and pharmacokinetic literature.
RESULTS: Plasma concentrations of TCP are highly variable both in patients with and without CKD. Plasma concentrations of TCP were not increased in the 2 cases with CKD as compared with literature data of patients without CKD. No signs of intoxication were detected in 2 cases with CKD that impaired continuous treatment of depression with TCP.
CONCLUSIONS: TCP may be considered in selected cases of TRD with concomitant CKD. More clinical data and tests of plasma concentrations of TCP are needed in patients with CKD.

Concurrent use of modafinil or armodafinil with monoamine oxidase inhibitors (MAOIs) is contraindicated due to a theoretical risk of drug synergism and acute hypertensive episodes. However, few data are available to substantiate that risk, and several case studies have suggested that the combination is safe. To our knowledge, we present the first case of a patient treated concurrently with armodafinil and tranylcypromine. The patient developed an acute hypertensive crisis with severe headache, nausea, blurry vision, and neck stiffness. Her symptoms corresponded with the predicted pharmacokinetic and pharmacodynamic response. She was also taking brexpiprazole, which could have contributed to her underlying symptoms. However, limited data suggest that the single combination of brexpiprazole with armodafinil or MAOIs would be safe. Upon review of the literature, two out of seven patients, including our own, treated concurrently with modafinil or armodafinil and an MAOI developed an adverse reaction. Physicians should exercise caution if using these classes of drugs together.

Tranylcypromine is an effective antidepressant from the class of monoamine oxidase inhibitors and is structurally related to amphetamine. However, reports differ regarding the potential metabolism of tranylcypromine to amphetamine and methamphetamine within the human body. We report a 25-year-old woman with severe depression who died due to a fatal tranylcypromine overdose in 2016. She had been prescribed tranylcypromine one day previously and had no history of previous suicide attempts or substance abuse. The body was transferred to a forensic medicine department in Tehran, Iran for the autopsy. A urine sample was positive for tranylcypromine, amphetamine and methamphetamine using gas chromatography/mass spectrometry after derivatisation with heptafluorobutyric acid. As amphetamines were present in the urine sample, it was assumed that the tranylcypromine had been converted to amphetamines metabolically. As such, it is possible that the legitimate use of certain prescription drugs may complicate the interpretation of test results for illegal drugs.

Tranylcypromine is a non-selective inhibitor of monamine oxidase which also inhibits the reuptake of norepinephrine. Spontaneous hypertensive reactions to the drug have been reported. In sheep tranylcypromine has been shown to cause a dose-dependent reduction in uterine blood flow. A similar effect in a pregnant woman might induce constriction of the uterine arteries and temporary fetal hypoxia.
MotherSafe is a state-based Teratogen Information service and currently provides counselling to around 22,000 consumers and healthcare professionals annually regarding exposures during pregnancy and breastfeeding We report on the outcome of 2 pregnancies in a patient treated with high dose tranylcypromine as well as pimozide, diazepam and alprazolam. The first pregnancy resulted in fetal death and autopsy revealed facial dysmorphism with ocular hypertelorism, cardiac defect and placental infarcts. The second pregnancy continued to term but the baby had similar dysmorphic features as well as an atrio-ventricular septal defect and craniosynostosis.
Due to their unpredictable interactions with many drugs and foods, MAO inhibitors such as tranylcypromine are not commonly used to treat depression and reports of use in pregnancy are rare. We report the outcome of 2 pregnancies with exposure to high doses of tranylcypromine resulting in children with a similar pattern of malformations. The aetiology is unknown but may relate to the vasoactive properties of the drug in above-therapeutic doses.

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Monoamine oxidase-(MAO)-inhibitors are a treatment of last resort in treatment resistant depression, which is regarded as a condition of increased psychiatric risk. General and regional anesthesia for elective surgery during use of long-term MAO-inhibitors remains a matter of debate because of an increased risk of drug interactions and decreased sympathetic stability. A series of case reports and new comparative studies reveal the safety of anesthesia/analgesia in non-cardiac surgery without discontinuation of the MAO-inhibitor if best effort is made for maintenance of sympathetic homeostasis and if known drug interactions are avoided. Very few reports with severe adverse incidents have been noted. Severe cardiovascular morbidity, a contraindication of MAO-inhibitors, probably contributed to peri- and postoperative complications. According to new studies, the risk of pharmacokinetic drug interactions is lower for tranylcypromine than for phenelzine. In the present case, a 66-year-old psychiatric patient on permanent treatment with 20 mg/day tranylcypromine was admitted for forefoot surgery. Anesthetic premedication consisted of 7.5 mg oral midazolam. Intravenous midazolam (0.5 mg) was dispensed for intraoperative sedation. After local anesthesia of the puncture site with 30 mg isobar prilocaine, spinal anesthesia was achieved by a single shot of 13.5 mg hyperbar bupivacaine (0.5%) intrathecally. Postoperative regional and general analgesia were accomplished by a peripheral nerve block with 50 mg isobar bupivacaine as well as oral etoricoxib and oxycodone. No peri- or postoperative complications were encountered. It is concluded that general or regional anesthesia for noncardiac surgery without discontinuation of MAO-inhibitor treatment may be a safe intervention after careful evaluation of an individual\'s perioperative and psychiatric risk. The increased psychiatric risk in patients treated with MAO-inhibitors outweighs the increased, however manageable, perioperative risk from continuing treatment during surgery.

This case report describes the improvement obtained by using tranylcypromine in a patient of severe treatment resistant depression. The adverse effects faced and steps taken to overcome them have also been discussed.

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This is a case report of a patient with narcolepsy treated simultaneously with modafinil and tranylcypromine. The concurrent use of these two medications is normally contraindicated based on theoretical concerns. To our knowledge this is the first report of the combined use of these two medications in a patient for any reason. This combination of medications was particularly effective in the treatment of the patient\'s narcoleptic symptoms and was well tolerated, with no evidence of the potential cardiovascular side effects. Due to modafinil\'s lack of sympathomimetic activity and unique pharmacological profile, it may be well tolerated with monoamine oxidase inhibitor\'s (MAOI\'s) in humans with respect to hemodynamic parameters and concerns of hypertensive crisis. Further investigation would help clarify cardiovascular safety issues in using this combined therapy. We believe that with proper informed consent from the patient and careful monitoring, a combination of an MAOI and modafinil may be a viable treatment alternative in refractory cases of narcolepsy.