How should I take methoxsalen?
You may need to have your eyes examined first.
Follow all directions on your prescription label. Use the medicine exactly as directed.
Methoxsalen doses are based on weight. Tell your doctor if you gain or lose weight.
You will take methoxsalen a certain number of hours before you are scheduled to receive UVA treatment. Soft gelatin capsules (Oxsoralen-Ultra) are more easily absorbed than hard gelatin capsules (8-Mop). The timing of your dose will depend on the type of capsule you are taking.
You may need to keep taking methoxsalen for a short time after UVA treatment. Follow your doctor's dosing instructions very carefully.
Take this medicine with low-fat food or milk if it upsets your stomach.
If your doctor changes your brand, strength, or type of methoxsalen, your dose needs and UVA light therapy schedule may change. Oxsoralen-Ultra and 8-Mop are not equivalent medicines and may not have the same dosing schedule.
Methoxsalen will make you more sensitive to sunlight, which can cause harmful effects on your vision and on your skin (premature aging or skin cancer).
For at least 8 hours after you take methoxsalen:
- Avoid exposure to sunlight or tanning beds.
- Even sunlight shining through clouds or through a glass window can expose you to harmful UV rays.
- Wear protective clothing and use sunscreen (SPF 30 or higher) when you are outdoors or near a window.
- Do not apply sunscreen to areas of active psoriasis that will be treated with UVA therapy.
For 24 to 48 hours after you receive UVA treatment:
- You must protect your skin and eyes from natural sunlight (even sun shining through a window).
- Do not expose your skin to any sunlight. Wear protective clothing including a hat and gloves. Use a sunscreen with a minimum SPF of 30, and apply it to all uncovered skin areas exposed to light.
- Wear sunglasses for at least 24 hours after treatment.
- For utmost protection, wear a pair of wraparound UVA-absorbing sunglasses, even while you are indoors near a window.
You may develop cataracts if you do not properly protect your eyes after methoxsalen and UVA treatment.
Follow your doctor's instructions about applying topical psoriasis medications or any moisturizing lotions after your methoxsalen and UVA treatment.
Check your skin regularly for signs of skin cancer, such as a small growth or nodule, a scaly or crusted lesion, a brownish spot or speckles, or a change in the size, color, or feel of a mole. You may need to check your skin for signs of cancer throughout the rest of your life.
Store methoxsalen at room temperature away from moisture, heat, and light.