When a testosterone product is unavailable, switching to another option may be necessary. However, testosterone products are not interchangeable, and switching can involve prescription changes, dosing adjustments, and real differences in how treatment works in everyday life.
This page explains what switching can involve, so you know what to expect and what to discuss with your prescriber or pharmacist.
Before you need to switch, it helps to know your medication — including the name, concentration, and how it’s taken — so you can recognize differences if something changes. This is so that you’re able to recognize differences if something changes. During a shortage, you may be offered an alternative that looks similar but is not identical. Even small details like concentration or carrier oil can matter. Being familiar with your usual product makes it easier to ask the right questions and stay in control of your treatment.
Switching Is Not Always Simple
Even when two products are used for the same purpose, they can differ in how they are prescribed, how they are taken, and how they feel over time.
In many cases, switching requires a new prescription. Doses may need to be adjusted, and the routine itself can change — from weekly injections to daily application, for example.
Some switches are relatively straightforward. Others are more involved and take time to adjust to.
Prescription rules also vary by province. In some areas, pharmacists can make certain substitutions or adjustments directly. In others, switching requires a new prescription from your prescriber. For example, switching between injectable testosterone enanthate and cypionate may require a new prescription in some provinces and territories, while in others a pharmacist may be able to make the change. Because these rules vary across the country, what is straightforward in one place may be more complicated in another. Your pharmacist can usually explain what’s possible where you live.
Switching Within the Same Type
Switching within the same type of testosterone is often the easiest place to start, but important differences still apply.
Injectable → Injectable
Switching between injectable testosterone enanthate and cypionate is common during shortages. Even so, a few practical issues come up:
- These are different drugs, so a new prescription is usually required.
- They come in different concentrations, so the injection volume changes.
- They use different carrier oils (sesame vs. cottonseed), which can affect tolerability.
Most people can switch without major issues, but the experience is not always identical.
Gel → Gel
Switching between gels is usually simpler, since the overall approach stays the same: daily application with relatively stable levels.
That said, details still matter. Pump formats and sachets are not always interchangeable from a prescription standpoint, and different packet sizes can change how doses are measured. The feel on the skin and drying time can also vary slightly.
Oral and Nasal Testosterone
Options here are limited. There is only one oral and one nasal testosterone product available in Canada. If either becomes unavailable, switching usually means moving to a completely different type of testosterone.
Switching Between Types of Testosterone
Switching between types — for example, from injections to gel — is a bigger change.
It usually means adjusting to a different routine, dosing schedule, and overall treatment experience. Weekly injections may become daily applications, or vice versa. Some forms carry risks (like transfer with gels) that others do not.
These switches are manageable, but they are not seamless, and they often take time to get used to.
The table below shows how switching between different types of testosterone can change your routine and what to expect in practice.
| From | To | What Changes | What That Means in Practice |
|---|---|---|---|
| Injectable | Gel | Weekly to daily | Daily application, transfer risk, different routine |
| Injectable | Oral | Injection to capsule | More frequent dosing, different absorption |
| Injectable | Nasal | Injection to nasal | Multiple daily doses, no injections |
| Gel | Injectable | Daily to weekly | Injections required, possible peaks and troughs |
| Gel | Nasal | Skin to nasal | No transfer risk, but more frequent dosing |
| Oral | Gel | Capsule to topical | Daily application, skin absorption |
| Nasal | Injectable | Nasal to injection | Less frequent dosing, injections required |
Cost and Coverage Can Change
One of the most important and often overlooked parts of switching is cost.
Some testosterone products, especially injectable forms, are relatively affordable. Others, such as gels or newer formulations like Natesto, can be significantly more expensive if you are paying out of pocket.
Coverage also varies by province and insurance plan. A product that was previously covered may not be, and switching can result in unexpected costs.
Because of this, cost is often a deciding factor when choosing an alternative during a shortage.
It Takes Time to Adjust
Switching testosterone products is not just a logistical change — it’s also a physiological one.
After switching, it can take several weeks to months for hormone levels to stabilize and for your body to adjust. Many people notice temporary changes in energy, mood, or how they feel overall during this period.
A common adjustment period is around 2 to 3 months, although this varies.
Compounded Testosterone Options
When commercial products are unavailable, some patients explore compounded testosterone through specialty pharmacies. These pharmacies may be able to prepare injectable or topical formulations using alternative ingredients, such as different carrier oils.
For those with sensitivities to standard carrier oils, or who have found that compounded formulations work better for them, this can be a meaningful option worth discussing with your prescriber.
That said, there are trade-offs to consider. Compounded medications are more expensive, not covered by public health plans, and may be harder to access outside major urban centres. Not all prescribers are familiar with prescribing them. For many people, this makes compounding a secondary option when other alternatives are not available, but it is useful to know it exists.
What to Do If You Need to Switch
If your testosterone product is unavailable, it helps to act early.
Start by confirming whether there is a shortage. Then contact your pharmacy and ask if they can source stock from another distributor or location. If not, you may need to speak with your prescriber about alternatives.
Switching is often possible, but it involves a few steps and having time to plan makes the process much smoother.