Aaron Alt
Chief Financial Officer at Cardinal Health
Thanks, Jason, and good morning. Q1 delivered a strong financial start to the year with EPS of $1.73, surpassing our expectations in pharma and medical. The strength of our pharma business, the progress on our medical turnaround efforts, and our disciplined approach to capital allocation contributed to new first quarter highs for the enterprise on both revenue and EPS. We also delivered strong cash flow and ended the quarter with $3.9 billion of cash.
Let's start with the consolidated enterprise results as seen on Slide 4. Total revenue increased 10% to $54.8 billion, driven by the pharma segment. Gross margin also increased 10% to $1.8 billion, driven by both the medical and pharma segments. Consolidated SG&A was generally in line with the prior year at $1.2 billion, reflecting our disciplined cost management across the enterprise. With the significant profit growth in both segments, we delivered total operating earnings of $571 million, a growth of 35%. Moving below the line, interest and other decreased by $15 million to $12 million due to increased interest income from cash and equivalents. As a reminder, our debt is largely fixed-rate, resulting in a net benefit from rising interest rates in the near term.
Our first quarter effective tax rate finished at 22.5%, an increase of approximately 5.5 percentage points. We saw positive discrete items in both the current and prior-year periods, which were more beneficial a year ago. First quarter average diluted shares outstanding were 250 million, 8% lower than a year ago, due to share repurchases. And as I mentioned earlier, the net result was first quarter EPS of $1.73, an all-time first-quarter high point, reflecting growth of 44%.
Let's turn to the pharma segment on Slide 5. First quarter revenue increased 11% to $51 billion, driven by brand and specialty pharmaceutical sales growth from existing customers. We continued to see broad-based strength in pharmaceutical demand, spanning across product categories, brand, specialty, consumer health, and generics, and from our largest customers. Similar to trends last year, GLP-1 medications provided a revenue tailwind in the quarter.
Segment profit increased 18% to $507 million in the first quarter, driven by a higher contribution from brand and specialty products, including distribution of COVID-19 vaccines, which provided a modest contribution as customers stocked up in preparation for the fall vaccination season. We also saw a positive generics program performance with continued volume growth and consistent market dynamics.
Turning to medical on Slide 6. First quarter revenue at $3.8 billion was largely flat to prior year and prior quarter. In the first quarter, we saw lower PP&E volume and pricing, including the impact from the prior year exit of our non-healthcare gloves portfolio, offset by growth in at-home solutions and inflationary impacts, including mitigation initiatives. Medical slightly exceeded our expectations in Q1 and delivered segment profit of $71 million, which represents an approximate $80 million increase from the prior year's first quarter loss.
Consistent with the expectations communicated at Investor Day and the last quarter, we continued to be encouraged by the indicators of improvement in trends with respect to our Cardinal Health brand product sales. In Q1, we saw a slight year-over-year volume growth. As expected, we saw an improvement in net inflationary impacts, including our mitigation initiatives. We also continued to see normalized PP&E margins, which were impacted by unfavorable price cost timing in the prior year. In the quarter, we also recorded a $581 million non-cash pretax goodwill impairment charge related to the medical segment, which is excluded from our non-GAAP results. This Q1 accounting charges due to an increase in the discount rate used in our goodwill impairment analysis.
Now turning to the balance sheet. As I alluded to earlier, in the first quarter, we generated robust adjusted free cash flow of $1 billion dollars and ended the quarter with $3.9 billion of cash on hand. We remain focused on doing what we said we would and deploying capital in a balanced, disciplined, and shareholder-friendly manner. In the first quarter, we continued to invest against our highest priorities, including investing $92 million of capex back into the business to drive organic growth. We made our third annual payments on our national opioid settlements obligation. We did not draw on our credit facilities and received a positive change to the outlook on our investment-grade rating from Fitch as well as from S&P in Q2. We returned over $630 million to shareholders through payment of our quarterly dividend and the launch of a new $500 million accelerated share repurchase program, which completed in October.
Now for our updated fiscal '24 guidance on Slide 8. Today, we are raising our fiscal '24 EPS guidance to a range of $6.75 to $7, the midpoint of which is 19% above our fiscal '23 EPS results. This $0.25 increase to our EPS range primarily reflects an improvement to our pharma outlook as well as some improvement below the line. We are raising our pharma segment profit guide to 7% to 9% growth for the year and are pleased with the momentum in the business. Our updated guidance reflects the strong first quarter performance, higher than originally assumed contributions from COVID-19 vaccine distribution, which continued into October, and the ongoing strength of our business, consistent with a 4% to 6% growth trajectory for the segment on a normalized basis. Finally as a reminder on the pharma quarterly cadence, we continue to assume Q3 branded inflation will not repeat that fiscal '23 levels.
In medical, we are reiterating our outlook of $400 million of segment profit for the year. Recall that we previously guided that medical segment profit would be significantly back half-weighted. That assumption remains unchanged. The first half-second half cadence continues to be driven by progress on Cardinal Health brand volume growth, the accumulative impact of inflation mitigation, and some business-specific seasonality. While we are encouraged that the business slightly overperformed relative to our expectation in Q1, due to execution against our plans and our cost management efforts, our expectation for Q2 segment profit is unchanged from our original guidance, which reflected some seasonality in Q2-specific expenses, like health and wellness. All together, Q2 segment profit should be slightly higher than Q1, which benefited from over-delivery. We expect continued progress from our Medical Improvement Plan initiatives over the course of the year.
Below the line, interest and other is reduced to a range of $100 million to $120 million, while we are maintaining an effective tax rate in the range of 23% to 25%. We do expect the tax favorability we saw in the first quarter to be offset in Q2.
We are also lowering our shares outlook to approximately $249 million, which reflects the already completed $500 million of our baseline share repurchase. I want to reiterate that as we shared at Investor Day, neither our fiscal '24 guidance nor our long-term targets reflect M&A, which is difficult to predict in timing or magnitude, or additional opportunistic deployment of capital to share repurchases beyond our baseline repurchase. We will continue to evaluate both opportunistically to drive long-term value.
So, an overall successful first quarter. The Cardinal team has a lot to be proud of with respect to our accomplishments. We are confident in the plans we have in place, and we are excited for our team to realize the significant value-creation opportunities still in front of us.
With that, I will turn it back over to Jason.