The Cheapest ED Meds for Men on TRT: Generic Sildenafil and Tadalafil vs Telehealth Plans

The Short Answer

Most men on TRT already have a prescriber, a lab schedule and a pharmacy routine. Adding an ED medication doesn't have to mean a second subscription. This guide puts real October 2026 prices side by side and explains which drug fits which use. It also covers when a telehealth plan is worth the markup.

This article is about cost and logistics. For how testosterone and PDE5 inhibitors work together, see our guides to treating ED and low T together and combining sildenafil with TRT.

Sildenafil vs Tadalafil: Which One Fits How You Use It

Both drugs are PDE5 inhibitors, and both are sold as inexpensive generics. They differ mainly in how long they last and how flexibly you can take them. Those differences matter more for your monthly bill than the sticker price per tablet.

Sources: the U.S. Viagra prescribing information (revised November 2023) and the U.S. Cialis prescribing information (revised March 2026).

How that maps to real life

• Occasional, planned use: sildenafil is cheap and works well if you can time it. A high-fat meal slows it down.
• Weekend or less predictable use: as-needed tadalafil's longer window means less clock-watching. Generic tablets cost about the same as sildenafil.
• Frequent use, or urinary symptoms too: daily low-dose tadalafil removes the timing question entirely. The 5 mg dose is also FDA-approved for benign prostatic hyperplasia (BPH), which matters for older men whose prostate is already being watched on TRT. See our guide to PSA and TRT.

Your prescriber chooses the drug and dose. The point here is that the "cheapest" option depends on how many doses you actually use per month.

Real Prices: Generic Cash vs Telehealth Plans (October 2026)

We checked three sources on October 12, 2026. Generic prices come from Cost Plus Drugs' official public price list. Telehealth prices come from HealthRX's and BiltRx's own product pages.

Generic prices are from Cost Plus Drugs' listings for sildenafil 100 mg and tadalafil 5 mg, plus its public pricing API (the tadalafil 10 mg and 2.5 mg figures come from the same API). Telehealth prices are from HealthRX's sildenafil page, its daily tadalafil page and BiltRx's sildenafil page and FAQ. Per-dose figures are our arithmetic. Prices change, so confirm at checkout.

The honest math

At 10 doses a month, a 30-tablet bottle of generic sildenafil from Cost Plus lasts about three months for under $12. The same 10 doses on HealthRX's 1-month sildenafil plan cost $62 every month. Pharmacy generics are dramatically cheaper per tablet. The gap comes from what's bundled with the telehealth price, not from the drug itself.

HealthRX lists lower monthly rates on 3-, 6- and 12-month plans. BiltRx's ED pages say plans start at $84 a month with consultation and shipping billed separately. Its FAQ lists a $9.99 monthly membership and says consultation fees and medication costs are billed separately. It doesn't publish the consult fee or the number of tablets in the $84 plan, so ask for all of it in writing before you pay.

Compounded vs FDA-Approved Generic: What You're Actually Buying

This difference is easy to miss on a pricing page. HealthRX's sildenafil, tadalafil and daily tadalafil pages say the products are compounded by a U.S.-licensed 503A pharmacy. HealthRX also states that compounded medications aren't reviewed or approved by the FDA for safety or effectiveness. BiltRx's site says its medications are "compounded by fully licensed U.S. 503A pharmacies."

So the telehealth options here are compounded, not FDA-approved products made for you by a compounding pharmacy. Generic tablets at a retail or mail-order pharmacy are FDA-approved generics. FDA's Drugs@FDA data lists dozens of generic (ANDA) applications for both sildenafil and tadalafil. Same active ingredient, different regulatory path. Our explainer on compounded vs pharmaceutical testosterone covers the same trade-off for TRT itself.

Compounding can make sense when you need something a standard tablet can't offer. BiltRx, for example, mentions chewables. For a standard dose of sildenafil or tadalafil, an FDA-approved generic is both the cheaper and the more standardized choice.

When a Telehealth ED Plan Is Worth the Markup

Cheap generics still need a prescription. The telehealth price mostly buys you a prescriber and convenience. That can be worth paying for in a few situations:

• You have no prescriber willing to write it. If your TRT clinic doesn't offer ED medications and you don't have a primary care doctor, the telehealth visit is what you're paying for.
• You want everything in one app. HealthRX includes the provider visit, unlimited follow-ups and shipping in its monthly price. It also says it issues a refund if the provider doesn't approve treatment (its pages describe this as a refund of the medication, so check the refund policy for other fees).
• You need a format a standard tablet doesn't come in. That's a reason to use a compounder, with the trade-offs above.

If none of those apply, ask your current TRT prescriber to add a PDE5 inhibitor prescription and send it to the pharmacy of your choice. TRT already involves periodic follow-up visits and labs, so the next check-in is the natural place to raise it.

Insurance, Medicare and the Copay Trap

Insurance often doesn't help much here. Under federal requirements, Medicare Part D isn't supposed to pay for drugs used to treat sexual or erectile dysfunction. A 2011 HHS Office of Inspector General review of 2007 and 2008 claims found Part D had paid $3.1 million for ED drugs it should not have covered. Confirm current rules with your plan.

Commercial plan coverage varies, so check your formulary. Before you run a claim, compare your copay with the cash price. When 30 generic tablets cost about $12 shipped, a $10 or $15 copay may not save you anything.

One exception worth asking about: daily tadalafil 5 mg has a BPH indication. If you have documented urinary symptoms, your plan may treat it differently. Ask your plan, not the pharmacy counter.

Paying with an HSA or FSA? Confirm eligibility with your plan administrator. Our TRT and FSA/HSA guide covers how that works for the testosterone side of your bill.

Safety Checks Before You Shop on Price

Price shopping is fine. Shortcuts on safety are not. A few non-negotiables from the FDA labels:

• Nitrates are a hard stop. Both sildenafil and tadalafil are contraindicated with organic nitrates in any form, used regularly or occasionally, and with riociguat. Sildenafil's label extends this to nitrites in any form.
• Alpha-blockers need a plan. Both labels advise caution and a low starting dose in men already stable on alpha-blockers. Tadalafil's label doesn't recommend combining it with an alpha-blocker for BPH.
• Tell your TRT prescriber. Whoever manages your testosterone should have your full medication list, especially if you take blood pressure drugs. See our post on blood pressure monitoring on TRT.
• Only use a licensed pharmacy that requires a prescription. "Generic Viagra, no prescription needed" sites and supplement-aisle "natural" alternatives aren't a savings strategy. Our ED supplements review covers why.

The Bottom Line

For men already on TRT, the cheapest path to ED treatment is usually three steps:

1. Ask the prescriber you already have. Request a generic sildenafil or tadalafil prescription at your next TRT check-in, and mention how often you expect to use it.
2. Pick the drug by use pattern. Sildenafil for occasional planned use, as-needed tadalafil for a longer window, and daily tadalafil if you'd use it most days or also have urinary symptoms.
3. Price it at a low-cost cash pharmacy before using insurance. As of October 2026, about $11 to $12 buys 30 tablets shipped from Cost Plus Drugs.

If you don't have a prescriber who will write it, a telehealth plan is a reasonable convenience buy. Know that you're paying roughly $60 to $85 a month or more (BiltRx adds separate fees) for compounded medication plus access. Comparing TRT clinics at the same time? Our clinic comparison and cost calculator help you price the testosterone side of the bill.